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Other Intangible Assets (Schedule of Other Intangible Assets) (Detail) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Intangible Assets Net Excluding Goodwill [Abstract]    
Customer relationships $ 167,278 $ 99,905
Noncompete agreements 38,045 13,150
Trademarks 23,344 10,520
Internal-use software licenses 22,820 21,982
Patents 2,840 2,840
Finite-lived intangible assets, gross 254,327 148,397
Accumulated amortization (74,423) (73,449)
Finite-lived intangible assets, net 179,904 74,948
Licenses 16,787 16,885
Other intangibles assets, net $ 196,691 $ 91,833