Property and Equipment, Net - Depreciation Expense Table (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Depreciation Expense [Line Items]
Depreciation expense			$ 13,050	$ 11,980
Continuing Operations [Member]
Depreciation Expense [Line Items]
Depreciation expense	$ 7,250	$ 6,040	13,050	11,980
Cost of Sales [Member] | Continuing Operations [Member]
Depreciation Expense [Line Items]
Depreciation expense	6,740	5,240	11,940	10,470
Selling, General and Administrative Expenses [Member] | Continuing Operations [Member]
Depreciation Expense [Line Items]
Depreciation expense	$ 510	$ 800	$ 1,110	$ 1,510