Property and Equipment, Net - Depreciation Expense Table (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Depreciation Expense [Line Items]
Depreciation expense	$ 5,800	$ 5,940
Continuing Operations [Member]
Depreciation Expense [Line Items]
Depreciation expense	5,800	5,940
Cost of Sales [Member] | Continuing Operations [Member]
Depreciation Expense [Line Items]
Depreciation expense	5,200	5,230
Selling, General and Administrative Expenses [Member] | Continuing Operations [Member]
Depreciation Expense [Line Items]
Depreciation expense	$ 600	$ 710