Accumulated Other Comprehensive Income (Loss) Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification of unrealized loss (gain)	$ 5,366	$ 5,200	$ 27,481
Interest Rate Swap
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification of unrealized loss (gain)	$ 5,400	$ 6,200	$ 6,200