Write-downs, Reserves and Recoveries, Net - Summary of Write-downs, Reserves and Recoveries, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Write Downs, Reserves and Recoveries, Net [Line Items]
Impairment of long-lived assets	$ 174	$ 2,769
Write-downs, reserves and recoveries, net	2,890	3,144
Continuing Operations [Member]
Write Downs, Reserves and Recoveries, Net [Line Items]
Loss on disposals of long-lived assets, net	2,700	400
Impairment of long-lived assets	$ 200	$ 2,700