Severance and Other Charges, net - Employee Separation Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Restructuring Reserve [Roll Forward]
Balance at December 31, 2019	$ 5,837
Additions for costs expensed	538	$ 389
Severance and other payments	(2,617)
Other adjustments	(1)
Balance at March 31, 2020	3,757
Corporate
Restructuring Reserve [Roll Forward]
Balance at December 31, 2019	2,186
Additions for costs expensed	358
Severance and other payments	(715)
Other adjustments	(1)
Balance at March 31, 2020	1,828
Tubular Running Services | Operating Segments
Restructuring Reserve [Roll Forward]
Balance at December 31, 2019	2,000
Additions for costs expensed	117
Severance and other payments	(1,005)
Other adjustments	0
Balance at March 31, 2020	1,112
Tubulars | Operating Segments
Restructuring Reserve [Roll Forward]
Balance at December 31, 2019	19
Additions for costs expensed	(19)
Severance and other payments	0
Other adjustments	0
Balance at March 31, 2020	0
Cementing Equipment | Operating Segments
Restructuring Reserve [Roll Forward]
Balance at December 31, 2019	1,632
Additions for costs expensed	82
Severance and other payments	(897)
Other adjustments	0
Balance at March 31, 2020	$ 817