Discontinued Operations - Schedule of Non-Cash Adjustments from Discontinued Operations (Details) - International operations - Discontinued operations, disposed of by sale - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation and amortization	$ 3,836	$ 5,261	$ 6,595
Provision for doubtful accounts	0	170	0
Provision for excess and obsolete inventory	151	380	954
Capital expenditures	1,319	2,975	2,946
Interest expense related to amortization of debt discount and debt issuance costs	$ 2,052	$ 2,627	$ 4,944