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Schedule of Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Finite-Lived Intangible Assets |  |
Gross Carrying Amount | $ 507,836 | $ 498,231
Accumulated Amortization | (375,008) | (367,531)
Foreign Currency Translation Adjustment | (7,348) | (5,218)
Net Carrying Amount | 125,480 | 125,482
Developed technology |  |
Finite-Lived Intangible Assets |  |
Gross Carrying Amount | 361,787 | 336,308
Accumulated Amortization | (279,000) | (252,080)
Foreign Currency Translation Adjustment | (5,709) | (4,079)
Net Carrying Amount | 77,078 | 80,149
Customer Relationships |  |
Finite-Lived Intangible Assets |  |
Gross Carrying Amount | 75,669 | 97,153
Accumulated Amortization | (59,077) | (83,448)
Foreign Currency Translation Adjustment | (455) | (340)
Net Carrying Amount | 16,137 | 13,365
Trademarks and tradenames |  |
Finite-Lived Intangible Assets |  |
Gross Carrying Amount | 70,120 | 64,420
Accumulated Amortization | (36,671) | (31,653)
Foreign Currency Translation Adjustment | (1,184) | (799)
Net Carrying Amount | 32,265 | 31,968
Non-compete Agreements |  |
Finite-Lived Intangible Assets |  |
Gross Carrying Amount |  | 320
Accumulated Amortization |  | (320)
Backlog |  |
Finite-Lived Intangible Assets |  |
Gross Carrying Amount | 260 | 30
Accumulated Amortization | $ (260) | $ (30)

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