Intangible Assets, Net - Summary of Carrying Amount of Intangible Assets by Major Asset Class (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value as of Acquisition Date	$ 453,943	$ 464,571
Accumulated Amortization	(124,683)	(88,323)
Intangible assets, net	329,260	376,248	$ 237,702
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value as of Acquisition Date	428,830	428,830
Accumulated Amortization	(118,976)	(75,581)
Intangible assets, net	309,854	353,249
Trademark and trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value as of Acquisition Date	25,100	25,100
Accumulated Amortization	(5,695)	(4,085)
Intangible assets, net	19,405	21,015
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value as of Acquisition Date	13	10,641
Accumulated Amortization	(12)	(8,657)
Intangible assets, net	$ 1	$ 1,984
Minimum | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	12 years
Minimum | Trademark and trade name
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	8 years
Minimum | Other
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	2 years
Maximum | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	20 years
Maximum | Trademark and trade name
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	30 years