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Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Income Tax Disclosure [Abstract] |  |
Carry forward tax losses | $ 83.7 | $ 81.5
Employee stock based compensation | 29,200,000 | 27,600,000
Deferred revenues | 5,600,000 | 10,500,000
Tax credits | 23.9 | 23.2
Other | 23,500,000 | 15,900,000
Deferred tax assets before valuation allowance | 165,900,000 | 158,700,000
Valuation allowance - mainly in respect to carryforward losses | (56,700,000) | (59,200,000)
Deferred tax asset | 109,200,000 | 99,500,000
Intangible assets | (31,300,000) | (21,000,000.0)
Undistributed earnings of subsidiary | (9,900,000) | (9,900,000)
Other | (1,700,000) | (14,200,000)
Deferred tax liability | (42,900,000) | (45,100,000)
Deferred tax asset, net | $ 66.3 | $ 54.4

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