Debt - Deferred Financing Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Debt Instrument [Line Items]
Financing costs	$ 21,505		$ 21,505		$ 20,882
Less: accumulated amortization	(9,659)		(9,659)		(7,972)
Total deferred financing costs, net	11,846		11,846		$ 12,910
Amortization of deferred financing costs	1,100	$ 1,500	2,400	$ 3,900
Deferred costs, net | Revolving Credit Facility | Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Total deferred financing costs, net	$ 4,000		$ 4,000