Equity Method Investments Schedule of Summarized Financial Information (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |||
---|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
Dec. 31, 2017 |
|
Equity Method Investments and Joint Ventures [Abstract] | |||||
Current assets | $ 37,257 | $ 37,257 | $ 35,859 | ||
Non-current assets | 23,247 | 23,247 | 21,009 | ||
Current liabilities | 16,626 | 16,626 | 15,151 | ||
Non-current liabilities | 2,930 | 2,930 | 1,056 | ||
Revenue | 29,068,000 | $ 32,986,000 | 64,905,000 | $ 67,419,000 | |
Net income | 4,200,000 | $ 4,527,000 | 10,098,000 | $ 10,975,000 | |
Schedule of Equity Method Investments [Line Items] | |||||
Carrying value | 135,430,000 | 135,430,000 | 137,299,000 | ||
Wireless Maritime Services | |||||
Schedule of Equity Method Investments [Line Items] | |||||
Carrying value | $ 135,430,000 | $ 135,430,000 | $ 137,299 |
X | ||||||||||
- Definition The amount of current assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition The amount of current liabilities reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition The amount of net income (loss) reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition The amount of noncurrent assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition The amount of noncurrent liabilities reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- References No definition available.
|
X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
X | ||||||||||
- Details
|