Discontinued Operations Major Classes of Assets and Liabilities of the Discontinued Operation (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets held for sale	$ 0	$ 4,871
Non-current assets held for sale	0	25,906
Current liabilities held for sale	0	4,604
Non-current liabilities held for sale	$ 0	813
Discontinued Operations, Held for Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		2,838
Accounts receivable, net		1,071
Prepaid expenses and other current assets		962
Current assets held for sale		4,871
Property and equipment, net		2,615
Intangible assets, net		4,857
Goodwill		17,182
Other non-current assets		1,252
Non-current assets held for sale		25,906
Accounts payable		991
Accrued compensation and employee-related expenses		220
Accrued other		1,362
Contract liabilities		1,546
Liability for uncertain tax positions		485
Current liabilities held for sale		4,604
Non-current deferred income tax liability		813
Non-current liabilities held for sale		813
Net assets held for sale		$ 25,360