Debt - Deferred Financing Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Debt Instrument [Line Items]
Financing costs	$ 23,044		$ 23,044		$ 20,882
Less: accumulated amortization	(10,949)		(10,949)		(7,972)
Total deferred financing costs, net	12,095		12,095		$ 12,910
Amortization of deferred financing costs	1,300	$ 1,100	3,700	$ 5,000
Deferred costs, net | Revolving Credit Facility | Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Total deferred financing costs, net	$ 5,000		$ 5,000