Discontinued Operations - Disposal Groups, Including Discontinued Operations (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
	Jun. 07, 2019	Sep. 30, 2019	Sep. 30, 2019
Discontinued Operations And Disposal Groups [Abstract]
Services			$ 1,165
Product sales			4,233
Total revenue			5,398
Cost of services			690
Cost of product sales			3,196
Other Expense (income)			91
Operating income (loss)			1,421
Gain on sale	$ 8,300	$ (485)	8,319
Income (loss) from discontinued operations before income tax expense		(485)	9,740
Income tax expense (benefit)		(88)	1,907
Income (loss) from discontinued operations, net of income taxes		$ (397)	$ 7,833