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Goodwill and Other Intangible Assets, Net - Components of Other Intangible Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Intangible Assets by Major Class [Line Items] |  |
Definite-lived intangibles, gross amount | $ 461,489 | $ 464,228
Intangibles, gross amount | 493,629 | 496,368
Definite-lived intangibles, accumulated amortization | (139,014) | (112,920)
Trade names [Member] |  |
Intangible Assets by Major Class [Line Items] |  |
Indefinite-lived intangibles, gross amount | 32,140 | 32,140
Customer relationships [Member] |  |
Intangible Assets by Major Class [Line Items] |  |
Definite-lived intangibles, gross amount | 422,042 | 423,513
Definite-lived intangibles, accumulated amortization | (116,575) | (94,889)
Other definite-lived intangibles [Member] |  |
Intangible Assets by Major Class [Line Items] |  |
Definite-lived intangibles, gross amount | 39,447 | 40,715
Definite-lived intangibles, accumulated amortization | $ (22,439) | $ (18,031)

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