Adjustment to Purchase Price of Debt

No definition available.

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- Definition

Insurance Settlement, Amount

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No definition available.

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- Definition

Leased Property Recovery Percentage

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- 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.

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No definition available.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
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-Section 50
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Amount of income (expense) related to nonoperating activities, classified as other.

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- Definition

Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary of Significant Accounting Policies - Concentration of Credit Risk (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Concentration Risk [Line Items]
Adjustment to Purchase Price of Debt		$ 27,516	$ 42,216
Provision (reversal) for doubtful accounts		3,347	23,304	$ (2,156)
Insurance Settlement, Amount		67,000
Other Nonoperating Income (Expense)		$ 2,637	$ 1,076	$ (211)
Mediterranean Shipping Company [Member] \| Operating and Capital Leases Billing [Member] [Domain] \| Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage		14.00%	15.00%
Mediterranean Shipping Company [Member] \| Accounts Receivable [Member] \| Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage		8.00%	7.00%
CMACGN \| Operating and Capital Leases Billing [Member] [Domain] \| Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage		19.00%	17.00%
CMACGN \| Accounts Receivable [Member] \| Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage		23.00%	23.00%
Hanjin Shipping Co. [Member]
Concentration Risk [Line Items]
Provision (reversal) for doubtful accounts	$ 29,700
Leased Property Recovery Percentage		94.00%
Hanjin Shipping Co. [Member]
Concentration Risk [Line Items]
Other Nonoperating Income (Expense)		$ (6,800)