Fair Value - Summary of Assets Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Disclosure Of Other Real Estate Owned Measured At Fair Value On A Recurring And Nonrecurring Basis Table [Line Items]
Other equity investments	$ 22,693	$ 23,776	[1]
Loans held for sale	64,102	69,534	[1]
OREO	0	195	[1]
Level 2 [Member]
Disclosure Of Other Real Estate Owned Measured At Fair Value On A Recurring And Nonrecurring Basis Table [Line Items]
Other equity investments	22,693	23,776
Fair Value, Nonrecurring [Member]
Disclosure Of Other Real Estate Owned Measured At Fair Value On A Recurring And Nonrecurring Basis Table [Line Items]
Other equity investments	22,693	23,776
Collateral dependent loans	78,311
Impaired loans - Pre-ASC 326		34,888
Loans held for sale	64,102	69,534
OREO		195
Fair Value, Nonrecurring [Member] | Level 2 [Member]
Disclosure Of Other Real Estate Owned Measured At Fair Value On A Recurring And Nonrecurring Basis Table [Line Items]
Other equity investments	22,693	23,776
Loans held for sale	64,102	69,534
Fair Value, Nonrecurring [Member] | Level 3 [Member]
Disclosure Of Other Real Estate Owned Measured At Fair Value On A Recurring And Nonrecurring Basis Table [Line Items]
Collateral dependent loans	$ 78,311
Impaired loans - Pre-ASC 326		34,888
OREO		$ 195

[1] Derived from audited December 31, 2022 Consolidated Financial Statements.