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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
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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

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