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v3.20.4

Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Detail) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Income Tax Disclosure [Abstract] |  |
Lease liabilities under operating leases | $ 67,839 | $ 67,975
Allowance for credit losses | 64,573 | 27,860
Net actuarial loss on defined benefit post-retirement benefit plans | 13,512 | 12,210
Stock-based compensation | 10,033 | 11,211
Bonus accrual | 3,961 | 5,055
Deferred loan and lease origination fees | 10,252 | 2,254
Other | 3,834 | 2,058
Total gross deferred tax assets | 174,004 | 128,623
Net unrealized gain on securities available for sale and transferred securities | (149,870) | (83,281)
Right-of-use assets under operating leases | (61,963) | (63,463)
Premises and equipment | (49,602) | (29,730)
Intangible assets | (14,596) | (12,642)
Defined benefit post-retirement benefit plans | (10,081) | (9,419)
Partnership interests | (2,913) | (2,894)
Leases | (1,090) | (1,572)
Other | (1,387) | (1,440)
Total gross deferred tax liabilities | (291,502) | (204,441)
Deferred Tax Liabilities, Net | $ (117,498) | $ (75,818)

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