Financing Arrangements - Narrative (Details)
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1 Months Ended |
3 Months Ended |
9 Months Ended |
10 Months Ended |
12 Months Ended |
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Mar. 27, 2018
USD ($)
$ / shares
shares
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Jan. 06, 2017
USD ($)
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Feb. 28, 2015
USD ($)
d
$ / shares
|
Sep. 30, 2018
USD ($)
$ / shares
|
Mar. 31, 2018 |
Sep. 30, 2017
USD ($)
|
Mar. 31, 2017
USD ($)
|
Sep. 30, 2018
USD ($)
$ / shares
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Sep. 30, 2017
USD ($)
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Jan. 25, 2018
USD ($)
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Dec. 31, 2017
USD ($)
$ / shares
|
Jun. 30, 2020 |
Mar. 08, 2018
$ / shares
shares
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Debt Instrument [Line Items] |
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Loss on extinguishment of debt |
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$ 0
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$ 0
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$ 0
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$ 14,389,000
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Debt instrument, face amount |
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$ 754,544,000
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$ 754,544,000
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$ 660,200,000
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Stated interest rate |
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2.75%
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Common stock, par value (usd per share) | $ / shares |
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$ 0.0001
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$ 0.0001
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$ 0.0001
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Capital lease obligations |
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$ 1,224,000
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$ 1,224,000
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Second Lien Credit Agreement |
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Debt Instrument [Line Items] |
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Debt instrument, face amount |
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158,450,000
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158,450,000
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$ 0
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Proceeds from issuance of debt |
$ 143,000,000
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Line of Credit |
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Debt Instrument [Line Items] |
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Borrowings outstanding under facility letters |
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700,000
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Line of Credit |
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Debt Instrument [Line Items] |
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Maximum borrowing capacity |
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$ 585,000,000
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Letters of credit outstanding |
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$ 6,500,000
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$ 6,500,000
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Percentage of outstanding equity in foreign subsidiaries pledged as collateral |
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65.00%
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65.00%
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Ratio of Indebtedness to Net Capital |
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4.5
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Line of Credit | Secured Debt |
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Debt Instrument [Line Items] |
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Maximum borrowing capacity |
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$ 500,000,000
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Periodic payment, period one |
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0.25%
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0.625%
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0.625%
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Line of Credit | Revolving Credit Facility |
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Debt Instrument [Line Items] |
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Maximum borrowing capacity |
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$ 85,000,000
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Loss on extinguishment of debt |
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$ (14,500,000)
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Line of Credit | Letters of Credit |
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Debt Instrument [Line Items] |
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Maximum borrowing capacity |
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$ 15,000,000
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Letters of credit outstanding |
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$ 5,800,000
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$ 5,800,000
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Convertible senior notes |
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Debt Instrument [Line Items] |
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Debt instrument, face amount |
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$ 82,500,000
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$ 82,500,000
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82,500,000
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Stated interest rate |
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2.75%
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2.75%
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2.75%
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Beneficial ownership percentage |
9.90%
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Conversion ratio |
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0.0539084
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Conversion price (in usd per share) | $ / shares |
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$ 18.55
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Convertible debt |
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$ 69,500,000
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$ 70,200,000
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$ 70,200,000
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69,700,000
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Equity component of convertible debt |
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13,000,000
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13,000,000
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13,000,000
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Increase in stated rate, first ninety days |
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0.25%
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Increase in stated rate, second ninety days |
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0.50%
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Debt Instrument, Penalty Interest Incurred |
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$ 200,000
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Convertible senior notes | Liability component |
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Debt Instrument [Line Items] |
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Debt issuance costs |
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1,800,000
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Convertible senior notes | Additional paid-in capital |
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Debt Instrument [Line Items] |
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Debt issuance costs |
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$ 300,000
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Convertible senior notes | If company undergoes a fundamental change |
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Debt Instrument [Line Items] |
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Redemption price percentage |
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100.00%
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Convertible senior notes | On or after February 20, 2019 |
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Debt Instrument [Line Items] |
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Percent of stock price to trigger conversion |
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130.00%
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Consecutive trading days | d |
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30
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Trading days | d |
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20
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Convertible senior notes | On or after February 20, 2022 |
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Debt Instrument [Line Items] |
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Redemption price percentage |
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100.00%
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Convertible senior notes | Redemption scenario one | After March 31, 2015 |
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Debt Instrument [Line Items] |
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Percent of stock price to trigger conversion |
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130.00%
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Convertible senior notes | Redemption scenario two | After March 31, 2015 |
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Debt Instrument [Line Items] |
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Percent of stock price to trigger conversion |
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98.00%
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Consecutive business days | d |
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5
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Term loan facility |
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Debt Instrument [Line Items] |
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Debt instrument, face amount |
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481,250,000
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481,250,000
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490,625,000
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Commercial Mortgage Loan | Mortgage letters maturing October 2032 | IFES Acquisition Corp Limited |
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Debt Instrument [Line Items] |
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Accrued interest on mortgage letters |
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0
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Subordinated Debt |
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Debt Instrument [Line Items] |
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Debt instrument, face amount |
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$ 158,450,000
|
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$ 158,450,000
|
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|
$ 0
|
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Stated interest rate |
10.00%
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Covenant net leverage ratio |
3.39
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Paid-in-kind interest rate |
12.00%
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Proceeds from issuance of debt |
$ 150,000,000
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Subordinated Debt | After March 31, 2015 |
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Debt Instrument [Line Items] |
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Redemption price percentage |
100.00%
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Subordinated Debt | If company undergoes a fundamental change |
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Debt Instrument [Line Items] |
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Redemption price percentage |
100.00%
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Subordinated Debt | On or after February 20, 2019 |
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Debt Instrument [Line Items] |
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Redemption price percentage |
105.00%
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Subordinated Debt | On or after February 20, 2022 |
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Debt Instrument [Line Items] |
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Redemption price percentage |
102.50%
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Subordinated Debt | Debt Instrument, Redemption, Period Five [Member] |
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Debt Instrument [Line Items] |
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Redemption price percentage |
101.00%
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Liability Warrants |
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Debt Instrument [Line Items] |
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Beneficial ownership percentage |
19.90%
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Proceeds from issuance of debt |
$ 150,000,000
|
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Adjusted Base Eurocurrency Rate | Line of Credit | Secured Debt |
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Debt Instrument [Line Items] |
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Basis spread on variable rate |
|
6.00%
|
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|
7.50%
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|
Adjusted Base Eurocurrency Rate | Line of Credit | Revolving Credit Facility |
|
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|
Debt Instrument [Line Items] |
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|
Basis spread on variable rate |
|
6.00%
|
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|
7.50%
|
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|
Adjusted Base Eurocurrency Rate | Line of Credit | Revolving Credit Facility | Minimum |
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Debt Instrument [Line Items] |
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Basis spread on variable rate |
|
5.50%
|
|
7.00%
|
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|
Adjusted Base Eurocurrency Rate | Line of Credit | Revolving Credit Facility | Maximum |
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Debt Instrument [Line Items] |
|
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|
Basis spread on variable rate |
|
6.00%
|
|
7.50%
|
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|
Base Rate | Line of Credit | Secured Debt |
|
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|
Debt Instrument [Line Items] |
|
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|
Basis spread on variable rate |
|
5.00%
|
|
|
|
|
|
6.50%
|
|
|
|
|
|
Base Rate | Line of Credit | Revolving Credit Facility |
|
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|
|
|
|
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|
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|
Debt Instrument [Line Items] |
|
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|
|
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|
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|
Basis spread on variable rate |
|
5.00%
|
|
|
6.50%
|
|
|
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|
Base Rate | Line of Credit | Revolving Credit Facility | Minimum |
|
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|
Debt Instrument [Line Items] |
|
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|
|
|
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|
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|
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|
Basis spread on variable rate |
|
4.50%
|
|
6.00%
|
|
|
|
|
|
|
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|
Base Rate | Line of Credit | Revolving Credit Facility | Maximum |
|
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|
Debt Instrument [Line Items] |
|
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|
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|
Basis spread on variable rate |
|
5.00%
|
|
6.50%
|
|
|
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|
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|
Penny Warrants |
|
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|
Debt Instrument [Line Items] |
|
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|
Exercise price (in usd per share) | $ / shares |
|
|
|
$ 0.01
|
|
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|
$ 0.01
|
|
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|
|
|
Penny Warrants | Liability Warrants |
|
|
|
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|
|
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|
Debt Instrument [Line Items] |
|
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|
Number of securities called by warrants | shares |
18,065,775
|
|
|
|
|
|
|
|
|
|
|
|
18,065,775
|
Common stock, par value (usd per share) | $ / shares |
$ 0.0001
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercise price (in usd per share) | $ / shares |
0.01
|
|
|
|
|
|
|
|
|
|
|
|
$ 0.01
|
Stock price trigger | $ / shares |
$ 4.00
|
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|
|
|
|
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Penny Warrants | Liability Warrants | Minimum |
|
|
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|
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|
|
Debt Instrument [Line Items] |
|
|
|
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|
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|
Beneficial ownership percentage |
50.00%
|
|
|
|
|
|
|
|
|
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|
|
|
Percentage of warrants held to nominate for BOD |
25.00%
|
|
|
|
|
|
|
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|
Penny Warrants | Liability Warrants | Maximum |
|
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|
Debt Instrument [Line Items] |
|
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|
Percentage of warrants held to nominate for BOD |
50.00%
|
|
|
|
|
|
|
|
|
|
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|
|
Market Warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercise price (in usd per share) | $ / shares |
|
|
|
$ 1.57
|
|
|
|
$ 1.57
|
|
|
|
|
|
Market Warrants | Liability Warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Number of securities called by warrants | shares |
13,000,000
|
|
|
|
|
|
|
|
|
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13,000,000
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Exercise price (in usd per share) | $ / shares |
$ 1.57
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$ 1.57
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Stock price trigger | $ / shares |
$ 2.40
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Market Warrants | Liability Warrants | Minimum |
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Debt Instrument [Line Items] |
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Beneficial ownership percentage |
25.00%
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Forecast [Member] | Line of Credit | Secured Debt |
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Debt Instrument [Line Items] |
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Periodic payment, period one |
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1.25%
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