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Schedule of Components of Deferred Tax Assets Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Income Tax Disclosure [Line Items] |  |
Tax credits | $ 98,378 | $ 87,595
Accruals | 41,459 | 33,156
Pension liabilities | 28,722 | 28,348
Inventory valuations | 20,991 | 18,427
Lease liability | 16,484 | 12,627
Deferred revenue | 11,164 | 9,235
Equity compensation | 6,630 | 6,543
Vacation accrual | 6,050 | 5,890
Investment impairment | 3,292 | 3,292
Net operating loss carryforwards | 1,721 | 1,823
Other | 774 | 626
Gross deferred tax assets | 235,665 | 207,562
Less: valuation allowance | (97,170) | (84,962)
Total deferred tax assets | 138,495 | 122,600
Right of use assets | (14,738) | (10,688)
Depreciation | (10,691) | (14,525)
Intangible assets | (8,531) | (12,726)
Contingent consideration | (5,214) | (3,515)
Marketable securities | (3,220) | (3,344)
Other |  | (710)
Total deferred tax liabilities | (42,394) | (45,508)
Net deferred assets | $ 96,101 | $ 77,092

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