Notes Payable - (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Debt Instrument [Line Items]
Notes payable, net of deferred financing costs	$ 400,000
Unamortized deferred financing costs	7,300		$ 7,700
Amortization of financing costs	$ 398	$ 0
Term Loan [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Weighted average interest rate	2.14%		1.99%