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Goodwill and Other Intangible Assets - Schedule of Companys Other Intangible Assets (Detail) - USD ($)
$ in Thousands
Mar. 31, 2019
Mar. 31, 2018
Intangible Assets [Line Items]    
Gross Amount, Total $ 523,432 $ 193,532
Accumulated Amortization ,Total (61,116) (46,391)
Net Amount ,Total 462,316 147,141
Trademarks    
Intangible Assets [Line Items]    
Indefinite-lived intangible assets, Gross Amount 152,484 97,444
Finite-lived intangible assets, Gross Amount 2,003 2,003
Indefinite-lived intangible assets, Accumulated Amortization (953) (953)
Finite-lived intangible assets, Accumulated Amortization (1,236) (1,151)
Indefinite-lived intangible assets, Net Amount 151,531 96,491
Finite-lived intangible assets, Net Amount 767 852
Customer relationships    
Intangible Assets [Line Items]    
Finite-lived intangible assets, Gross Amount 286,664 66,973
Finite-lived intangible assets, Accumulated Amortization (42,704) (31,500)
Finite-lived intangible assets, Net Amount 243,960 35,473
Noncompete Agreements    
Intangible Assets [Line Items]    
Finite-lived intangible assets, Gross Amount 3,025 2,852
Finite-lived intangible assets, Accumulated Amortization (2,807) (2,759)
Finite-lived intangible assets, Net Amount 218 93
Patents    
Intangible Assets [Line Items]    
Finite-lived intangible assets, Gross Amount 77,779 22,769
Finite-lived intangible assets, Accumulated Amortization (12,229) (8,872)
Finite-lived intangible assets, Net Amount 65,550 13,897
Licenses    
Intangible Assets [Line Items]    
Finite-lived intangible assets, Gross Amount 1,477 1,491
Finite-lived intangible assets, Accumulated Amortization (1,187) (1,156)
Finite-lived intangible assets, Net Amount $ 290 $ 335