Total carrying amount of consideration received or receivable as of the balance sheet date representing potential earnings that were not as yet recognized as revenue or other forms of income in conformity with GAAP, and which are expected to be recognized as such after one year or beyond the normal operating cycle, if longer.

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-Name Staff Accounting Bulletin (SAB)

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The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section S99

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Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

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-Subparagraph (SX 210.7-04.4)

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Other Income (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other income	$ 47,935us-gaap_OtherIncome	$ 13,730us-gaap_OtherIncome	$ 22,598us-gaap_OtherIncome
Income from credit default insurance	30,956us-gaap_InsuranceRecoveries
Sale of defaulted counterparty claim
Other income	17,779
Within caption "Revenue"
Income from credit default insurance	1,170
Within caption "Other Income"
Income from credit default insurance	29,786		22,453
Remainder of "Other Income"
Other income			145
Hire revenues
Deferred revenue and credits	$ 10,000