Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Fair value assets and liabilities measured on recurring basis

The following tables set forth our financial assets and liabilities as of December 31, 2015 and 2014 that we measured at fair value on a recurring basis by level within the fair value hierarchy. Assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to their fair value measurement.

	Fair Value as of December 31, 2015		Fair Value Measurements at December 31, 2015 Using Fair Value Hierarchy
			Level 1		Level 2		Level 3		Valuation Technique
Assets:
Cash and cash equivalents	$	155,904	$	155,904	$	—	$	—	Market
Restricted cash and cash equivalents	98,137		98,137		—		—		Market
Total	$	254,041	$	254,041	$	—	$	—

Liabilities:
Derivative liabilities	$	1,283	$	—	$	1,283	$	—	Income

	Fair Value as of December 31, 2014		Fair Value Measurements at December 31, 2014 Using Fair Value Hierarchy
			Level 1		Level 2		Level 3		Valuation Technique
Assets:
Cash and cash equivalents	$	169,656	$	169,656	$	—	$	—	Market
Restricted cash and cash equivalents	98,884		98,884		—		—		Market
Total	$	268,540	$	268,540	$	—	$	—

Liabilities:
Derivative liabilities	$	2,879	$	—	$	2,879	$	—	Income

Carrying amounts and fair values of financial instruments

The carrying amounts and fair values of our financial instruments at December 31, 2015 and 2014 are as follows:

	December 31, 2015				December 31, 2014
	Carrying Amount of Liability		Fair Value of Liability		Carrying Amount of Liability		Fair Value of Liability
Securitizations	$	125,366	$	123,696	$	391,680	$	376,752
Credit Facilities	225,000		225,000		200,000		200,000
ECA term financings	404,491		422,640		449,886		471,918
Bank financings	636,970		653,699		554,888		560,285
Senior Notes	2,700,000		2,832,125		2,200,000		2,300,615