Asset Impairments and Other Charges - Schedule of Asset Impairments (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill	$ 0		$ 406,056	$ 0	$ 406,056	$ 0
Impairment of goodwill loss, tax			19,600
Impairment of goodwill loss, net of tax			386,456
Impairments of fixed assets	0	$ 2,992	5,198	33,697	8,190	33,697
Impairment of fixed assets, tax		628	1,092
Impairment of fixed assets, net of tax		2,364	4,106
Impairments of inventories	5,921		25,230		31,151	$ 0
Impairment of inventories, tax	1,243		4,736
Impairment of inventories, net of tax	4,678		20,494
Severance and facility closure costs	288	5,397	660
Severance and facility closure costs, tax	60	1,133	139
Severance and facility closure costs, net of tax	228	4,264	521
Corporate
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of fixed assets		0
Impairments of inventories	0
Severance and facility closure costs	0	216
Total Well Site Services
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill					127,054
Total Well Site Services | Completion Services
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill			127,054		127,054
Impairments of fixed assets		3,000	0
Impairments of inventories			8,981		9,000
Severance and facility closure costs			331
Total Well Site Services | Drilling Services
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill			0		0
Impairments of fixed assets		3,000	5,198	$ 33,700
Impairments of inventories			0
Severance and facility closure costs			217
Total Well Site Services | Operating Segments | Completion Services
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of fixed assets		2,992
Impairments of inventories	0
Severance and facility closure costs	0	3,544
Downhole Technologies
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill			192,502		192,502
Impairments of fixed assets			0		5,900
Impairments of inventories			0
Severance and facility closure costs			0
Downhole Technologies | Operating Segments
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of fixed assets		0
Impairments of inventories	5,921
Severance and facility closure costs	0	1,315
Offshore/ Manufactured Products
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill			86,500		86,500
Impairments of fixed assets			0
Impairments of inventories			16,249		16,200
Severance and facility closure costs			$ 112
Offshore/ Manufactured Products | Operating Segments
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill					$ 86,500
Impairments of fixed assets		0
Impairments of inventories	0
Severance and facility closure costs	$ 288	$ 322