Interest, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest Income (Expense), Net [Abstract]
Interest on borrowings, net settlements on interest rate derivatives, and other liabilities	$ 51,428	$ 44,820	$ 153,076	$ 144,677
Hedge ineffectiveness losses	215	(4)	509	55
Cash flow hedges reclassified into earnings	5,006	8,549	19,349	26,730
Amortization of deferred financing costs	3,746	3,506	11,211	10,493
Interest Expense	60,395	56,871	184,145	181,955
Less interest income	(14)	(77)	(82)	(404)
Interest, net	$ 60,381	$ 56,794	$ 184,063	$ 181,551