Derivative Instruments - Summary of Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Derivative Liability [Abstract]
Total derivative instrument liabilities	$ 10,423	$ 12,968
Derivative Asset [Abstract]
Derivative instruments	21,069	4,464
Total derivative instrument assets	21,069	4,464
Interest rate swaps | Derivatives designated as hedging instruments:
Derivative Liability [Abstract]
Derivative liability, current	2,626	5,218
Interest rate swaps | Derivatives not designated as hedging instruments:
Derivative Liability [Abstract]
Derivative liability, noncurrent	324	330
Cross currency and interest rate swaps | Derivatives not designated as hedging instruments:
Derivative Liability [Abstract]
Derivative liability, noncurrent	7,473	7,420
Contingent redemption features - Series A Preferred Stock | Derivatives not designated as hedging instruments:
Derivative Asset [Abstract]
Derivative instruments	$ 21,069	$ 4,464