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Goodwill and Other Intangible Assets, Net - Components of Other Intangible Assets (Detail) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
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Jun. 30, 2020 | Dec. 31, 2019
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items] |  |
Total gross definite life intangible assets | $ 343,792 | $ 324,974
Accumulated Amortization | 129,226 | 117,287
Net definite life intangible assets | $ 214,566 | $ 207,687
Weighted-Average Remaining Life | 10 years 3 months 18 days | 10 years 9 months 18 days
Total indefinite life intangible assets | $ 81,837 | $ 95,537
Total definite and indefinite life intangible assets, gross, excluding goodwill | 425,629 | 420,511
Total definite and indefinite life intangible assets, net, excluding goodwill | 296,403 | 303,224
Trade Names [Member] |  |
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items] |  |
Total indefinite life intangible assets | 79,570 | 93,083
Licenses [Member] |  |
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items] |  |
Total indefinite life intangible assets | 2,267 | 2,454
Customer-Related Intangible Assets [Member] |  |
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items] |  |
Total gross definite life intangible assets | 247,410 | 250,788
Accumulated Amortization | 65,887 | 57,332
Net definite life intangible assets | $ 181,523 | $ 193,456
Weighted-Average Remaining Life | 10 years 10 months 24 days | 11 years 2 months 12 days
Technology [Member] |  |
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items] |  |
Total gross definite life intangible assets | $ 24,022 | $ 24,024
Accumulated Amortization | 18,317 | 16,608
Net definite life intangible assets | $ 5,705 | $ 7,416
Weighted-Average Remaining Life | 1 year 8 months 12 days | 2 years 2 months 12 days
Noncompete Agreements [Member] |  |
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items] |  |
Total gross definite life intangible assets | $ 29,666 | $ 30,378
Accumulated Amortization | 28,451 | 28,198
Net definite life intangible assets | $ 1,215 | $ 2,180
Weighted-Average Remaining Life | 6 years 4 months 24 days | 4 years 2 months 12 days
Patents [Member] |  |
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items] |  |
Total gross definite life intangible assets | $ 12,233 | $ 12,232
Accumulated Amortization | 11,982 | 11,954
Net definite life intangible assets | $ 251 | $ 278
Weighted-Average Remaining Life | 0 years | 1 month 6 days
All Other [Member] |  |
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items] |  |
Total gross definite life intangible assets | $ 30,461 | $ 7,552
Accumulated Amortization | 4,589 | 3,195
Net definite life intangible assets | $ 25,872 | $ 4,357
Weighted-Average Remaining Life | 8 years 2 months 12 days | 9 years 4 months 24 days

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