Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2019

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, 2019 and 2018 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, 2019		Fair Value Measurements at December 31, 2019 Using Fair Value Hierarchy
			Level 1		Level 2		Level 3		Valuation Technique
Assets:
Cash and cash equivalents	$	140,882	$	140,882	$	—	$	—	Market
Restricted cash and cash equivalents	14,561		14,561		—		—		Market
Derivative assets	115		—		115		—		Market
Total	$	155,558	$	155,443	$	115	$	—

	Fair Value as of December 31, 2018		Fair Value Measurements at December 31, 2018 Using Fair Value Hierarchy
			Level 1		Level 2		Level 3		Valuation Technique
Assets:
Cash and cash equivalents	$	152,719	$	152,719	$	—	$	—	Market
Restricted cash and cash equivalents	15,134		15,134		—		—		Market
Derivative assets	4,886		—		4,886		—		Market
Total	$	172,739	$	167,853	$	4,886	$	—

Carrying amounts and fair values of financial instruments

The carrying amounts and fair values of our financial instruments at December 31, 2019 and 2018 are as follows:

	December 31, 2019				December 31, 2018
	Carrying Amount of Liability		Fair Value of Liability		Carrying Amount of Liability		Fair Value of Liability
Credit Facilities	$	150,000	$	150,000	$	425,000	$	425,000
Unsecured Term Loan	215,000		215,000		120,000		120,000
ECA Financings	147,644		150,805		189,080		190,216
Bank Financings	993,593		1,010,482		619,715		623,604
Senior Notes	3,600,000		3,787,268		3,450,000		3,446,826