Segment and Related Information - Disaggregated Revenues for Fluids Systems Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 247,664	$ 235,329	$ 236,262	$ 227,293	$ 204,389	$ 201,663	$ 183,020	$ 158,691	$ 946,548	$ 747,763	$ 471,496
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									626,656	460,872	214,026
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									67,374	55,600	34,176
EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									124,510	102,247	96,654
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									17,733	4,081	4,669
Latin America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									28,767	36,988	41,035
Fluids systems [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									715,813	615,803	395,461
Fluids systems [Member] | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									476,826	395,397	182,926
Fluids systems [Member] | United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									410,410	341,075	149,876
Fluids systems [Member] | Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									66,416	54,322	33,050
Fluids systems [Member] | International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									238,987	220,406	212,535
Fluids systems [Member] | EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									192,537	179,360	167,130
Fluids systems [Member] | Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									17,733	4,081	4,669
Fluids systems [Member] | Latin America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 28,717	$ 36,965	$ 40,736