Property and Equipment - Additional Disclosures (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Property, Plant and Equipment [Abstract]
Impairment of property and equipment	$ 14,600,000	$ 0
Depreciation expense, inclusive of expense captured in cost of revenue	$ 3,100,000	$ 3,400,000