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Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	$ 0	$ 0	$ 0	$ 5,693	$ 0	$ 0	$ 0	$ 550	$ 5,693	$ 550	$ (12,244)
Cash provided by (used in) operating activities, discontinued operations									0	(2,690)	11,296
Cash provided by (used in) investing activities, discontinued operations									0	(28,470)	(1,392)
Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent									5,693	550	(12,244)
Cash provided by (used in) operating activities, discontinued operations										11,300	(2,700)
Cash provided by (used in) investing activities, discontinued operations									0	(28,500)	1,400
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax									$ 5,693	$ 1,525	$ 0