Discontinued Operations - Balance Sheet Data for Discontinued Operations (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Summary of balance sheet data for discontinued operations
Total assets associated with discontinued operations	$ 12,901	$ 7,363
Other current liabilities	0	297
Spinoff | Exterran Corporation
Summary of balance sheet data for discontinued operations
Other current assets	0	300
Other assets	8,508	7,063
Deferred tax assets	4,393	0
Total assets associated with discontinued operations	12,901	7,363
Other current liabilities	0	297
Deferred tax liabilities	8,508	7,063
Total liabilities associated with discontinued operations	$ 8,508	$ 7,360