Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill impairment				$ 0	$ 164,167
Amortization expense				$ 10,800	$ 9,700	$ 8,800
Technology and intellectual property
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful live of finite-lived intangible assets				15 years
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful live of finite-lived intangible assets				20 years
EPMH
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired finite-lived intangibles, measurement period adjustment			$ (1,500)
Identifiable intangible assets - indefinite lived			$ (1,250)
EPMH | Technology and intellectual property
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired finite-lived intangibles, measurement period adjustment	$ 1,500
Trade names | EPMH
Acquired Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - indefinite lived	$ 1,300
Oil & Gas Sand | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Impairment of finite-lived intangibles				$ 1,200
Oil & Gas Sand | Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Impairment of indefinite-lived intangibles		$ 4,500
Oil & Gas Sand
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill impairment		$ 164,200
Maximum | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful live of finite-lived intangible assets				15 years
Minimum | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful live of finite-lived intangible assets				13 years