Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.8.0.1
Subsequent Events (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Oct. 31, 2017
Oct. 02, 2017
Jul. 27, 2017
Jan. 06, 2017
Nov. 08, 2016
Dec. 31, 2017
Oct. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
May 31, 2017
Jun. 30, 2017
Mar. 31, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 22, 2017
Jul. 27, 2016
Subsequent Event [Line Items]                                  
Loss on extinguishment of debt                     $ 0   $ 0 $ (14,389,000) $ 0    
Line of Credit                                  
Subsequent Event [Line Items]                                  
Maximum borrowing capacity       $ 585,000,000                          
Percentage of outstanding equity in foreign subsidiaries pledged as collateral                 65.00%   65.00%     65.00%      
Line of Credit | Secured Debt                                  
Subsequent Event [Line Items]                                  
Maximum borrowing capacity       $ 500,000,000                          
Periodic principal payment, as a percent first 8 quarterly payments       0.25%           0.625%              
Periodic principal payment, as a percent after first 8 quarterly payments                   1.25%              
Maximum adjusted consolidated EBITDA allowed                   $ 5,000,000              
Consent fee percentage                 0.25% 1.00% 0.25%     0.25%      
Consent fee paid                 $ 3,900,000 $ 5,600,000              
Fee as percentage of outstanding balance if 12/31/2016 financials not filed by June 30, 2017                 0.25%   0.25%     0.25%      
Fee as percentage of outstanding balance if 12/31/2016 financials not filed by July 31, 2017                 0.25%   0.25%     0.25%      
Line of Credit | Secured Debt | Base Rate                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate       5.00%           6.00%              
Line of Credit | Secured Debt | Adjusted Base Eurocurrency Rate                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate       6.00%           7.00%              
Line of Credit | Revolving Credit Facility                                  
Subsequent Event [Line Items]                                  
Maximum borrowing capacity       $ 85,000,000                          
Loss on extinguishment of debt                       $ 13,500,000          
Line of Credit | Revolving Credit Facility | Base Rate                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate       5.00%           6.00%              
Line of Credit | Revolving Credit Facility | Base Rate | Minimum                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate       4.50%             5.50%            
Line of Credit | Revolving Credit Facility | Base Rate | Maximum                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate       5.00%             6.00%            
Line of Credit | Revolving Credit Facility | Adjusted Base Eurocurrency Rate                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate       6.00%           7.00%              
Line of Credit | Revolving Credit Facility | Adjusted Base Eurocurrency Rate | Minimum                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate       5.50%             6.50%            
Line of Credit | Revolving Credit Facility | Adjusted Base Eurocurrency Rate | Maximum                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate       6.00%             7.00%            
Line of Credit | Letters of Credit                                  
Subsequent Event [Line Items]                                  
Maximum borrowing capacity       $ 15,000,000                          
Line of Credit | Subsequent Event | Secured Debt                                  
Subsequent Event [Line Items]                                  
Prepayment premium percentage through May 2020   2.00%                              
Prepayment premium percentage through May 2021   1.00%                              
Consent fee percentage 0.25%         0.05% 0.25% 0.25%                  
Consent fee paid           $ 231,000 $ 1,400,000 $ 1,400,000                  
Maximum range of estimated revenue $ 5,000,000 $ 5,000,000                              
Fee as percentage of outstanding balance if 12/31/2016 financials not filed by January 31, 2018                               0.25%  
Line of Credit | Subsequent Event | Secured Debt | Base Rate                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate 6.50% 6.25%                              
Line of Credit | Subsequent Event | Secured Debt | Adjusted Base Eurocurrency Rate                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate 7.50% 7.25%                              
Line of Credit | Subsequent Event | Revolving Credit Facility | Base Rate                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate 6.50% 6.25%                              
Line of Credit | Subsequent Event | Revolving Credit Facility | Base Rate | Minimum                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate 6.00% 5.75%                              
Line of Credit | Subsequent Event | Revolving Credit Facility | Base Rate | Maximum                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate 6.50% 6.25%                              
Line of Credit | Subsequent Event | Revolving Credit Facility | Adjusted Base Eurocurrency Rate                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate 7.50% 7.25%                              
Line of Credit | Subsequent Event | Revolving Credit Facility | Adjusted Base Eurocurrency Rate | Minimum                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate 7.00% 6.75%                              
Line of Credit | Subsequent Event | Revolving Credit Facility | Adjusted Base Eurocurrency Rate | Maximum                                  
Subsequent Event [Line Items]                                  
Basis spread on variable rate 7.50% 7.25%                              
Emerging Markets Communications LLC                                  
Subsequent Event [Line Items]                                  
Deferred consideration settled with company shares                                 $ 40,607,000
Emerging Markets Communications LLC | Subsequent Event                                  
Subsequent Event [Line Items]                                  
Number of shares issued to settle deferred consideration     5,080,049                            
Shareco Group of America, Inc.                                  
Subsequent Event [Line Items]                                  
Percentage of common stock to be issued         9.90%                        
Price per share of common stock to be issued         $ 11.00