Debt - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Debt Disclosure [Abstract]
Cash payments for interest	$ 21,668	$ 21,296	$ 42,909	$ 43,306
Change in interest accrual	6,396	10,266	4,828	10,528
Amortization of deferred loan origination costs	753	559	1,964	1,593
Write-off of deferred loan origination costs	155	0	329	532
Amortization of bond premium	(234)	(191)	(617)	(573)
Other interest (income) expense	(385)	(5)	(803)	4
Total interest expense, net	$ 15,561	$ 11,393	$ 38,954	$ 34,334