Property and Equipment, Net - Depreciation Expense Table (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Depreciation Expense [Line Items]
Depreciation expense			$ 10,830	$ 10,380
Continuing Operations [Member]
Depreciation Expense [Line Items]
Depreciation expense	$ 5,750	$ 5,240	10,830	10,380
Cost of Sales [Member] | Continuing Operations [Member]
Depreciation Expense [Line Items]
Depreciation expense	5,020	4,470	9,380	8,830
Selling, General and Administrative Expenses [Member] | Continuing Operations [Member]
Depreciation Expense [Line Items]
Depreciation expense	$ 730	$ 770	$ 1,450	$ 1,550