Asset Impairments and Other Charges - Schedule of Asset Impairments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill	$ 406,056	$ 0
Goodwill, impairment loss, tax	19,600
Goodwill, impairment loss, net of tax	386,456
Non-cash impairment of fixed assets	5,198	0
Non-cash impairment of fixed assets, tax	1,092
Non-cash impairment of fixed assets, net of tax	4,106
Impairments of inventories	25,230	$ 0
Impairment of inventories, tax	4,736
Impairment of inventories, net of tax	20,494
Severance and facility closure costs	660
Severance and facility closure costs, tax	139
Severance and facility closure costs, net of tax	521
Total Well Site Services
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill	127,054
Total Well Site Services | Drilling Services
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill	0
Non-cash impairment of fixed assets	5,198
Impairments of inventories	0
Severance and facility closure costs	217
Total Well Site Services | Completion Services
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill	127,054
Non-cash impairment of fixed assets	0
Impairments of inventories	8,981
Severance and facility closure costs	331
Downhole Technologies
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill	192,502
Non-cash impairment of fixed assets	0
Impairments of inventories	0
Severance and facility closure costs	0
Offshore/Manufactured Products
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments of goodwill	86,500
Non-cash impairment of fixed assets	0
Impairments of inventories	16,249
Severance and facility closure costs	$ 112