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Loans and Leases Receivable and Allowance for Credit Losses on Loans and Leases - Credit Ratings (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	$ 1,859,044	$ 2,885,998
Fiscal year before current year	2,531,304	1,162,342
Two years before current year	1,003,906	983,444
Three years before current year	834,756	553,607
Four years before current year	413,764	732,071
Prior	1,721,340	1,103,651
Revolving loans amortized cost basis	1,754,741	1,597,185
Revolving loans converted to term	0	0
Loans and leases receivable	10,118,855	9,018,298
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable	7,704,057	6,886,232
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable	2,414,798	2,132,066
Commercial loans and leases receivable | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	1,538,752	1,803,457
Fiscal year before current year	1,467,209	762,301
Two years before current year	665,036	618,104
Three years before current year	535,836	509,267
Four years before current year	369,536	723,019
Prior	1,537,467	962,716
Revolving loans amortized cost basis	1,590,221	1,507,368
Revolving loans converted to term	0	0
Loans and leases receivable	7,704,057	6,886,232
Multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable	1,705,027	1,486,308
Multi-family | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	385,034	403,075
Fiscal year before current year	402,222	133,452
Two years before current year	132,732	23,068
Three years before current year	22,884	219,006
Four years before current year	131,883	339,368
Prior	630,272	368,339
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	1,705,027	1,486,308
Multi-family | Pass | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	385,034	403,075
Fiscal year before current year	400,699	133,452
Two years before current year	132,732	23,068
Three years before current year	22,884	209,070
Four years before current year	126,850	282,663
Prior	520,645	316,491
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	1,588,844	1,367,819
Multi-family | Special mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	1,523	0
Two years before current year	0	0
Three years before current year		9,936
Four years before current year	5,033	18,489
Prior	49,200	28,776
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	55,756	57,201
Multi-family | Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	0
Three years before current year	0	0
Four years before current year	0	38,216
Prior	60,427	23,072
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	60,427	61,288
Multi-family | Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	0
Three years before current year	0	0
Four years before current year	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	0	0
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable	3,995,802	3,424,783
Commercial and industrial | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	1,008,340	993,278
Fiscal year before current year	647,655	348,710
Two years before current year	289,940	279,545
Three years before current year	229,602	103,181
Four years before current year	57,836	97,470
Prior	174,540	96,716
Revolving loans amortized cost basis	1,587,889	1,505,883
Revolving loans converted to term	0	0
Loans and leases receivable	3,995,802	3,424,783
Commercial and industrial | Pass | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	1,008,340	974,016
Fiscal year before current year	627,255	337,045
Two years before current year	284,982	266,677
Three years before current year	224,881	86,691
Four years before current year	57,750	55,536
Prior	136,853	89,860
Revolving loans amortized cost basis	1,578,024	1,484,287
Revolving loans converted to term	0	0
Loans and leases receivable	3,918,085	3,294,112
Commercial and industrial | Special mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	476
Fiscal year before current year	0	1,408
Two years before current year	57	3,325
Three years before current year	156	4,904
Four years before current year	0	36,252
Prior	36,223	92
Revolving loans amortized cost basis	2,524	14,662
Revolving loans converted to term	0	0
Loans and leases receivable	38,960	61,119
Commercial and industrial | Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		18,786
Fiscal year before current year	20,400	10,257
Two years before current year	4,901	9,543
Three years before current year	4,565	11,586
Four years before current year	86	5,682
Prior	1,464	6,764
Revolving loans amortized cost basis	7,341	6,934
Revolving loans converted to term	0	0
Loans and leases receivable	38,757	69,552
Commercial and industrial | Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	0
Three years before current year	0	0
Four years before current year	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	0	0
Commercial real estate owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable	701,893	654,922
Commercial real estate owner occupied | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	60,055	213,102
Fiscal year before current year	210,933	59,348
Two years before current year	59,025	131,252
Three years before current year	128,640	70,993
Four years before current year	70,603	68,941
Prior	171,965	110,614
Revolving loans amortized cost basis	672	672
Revolving loans converted to term	0	0
Loans and leases receivable	701,893	654,922
Commercial real estate owner occupied | Pass | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	60,055	213,102
Fiscal year before current year	210,933	59,348
Two years before current year	59,025	124,626
Three years before current year	122,135	60,993
Four years before current year	60,968	58,073
Prior	150,564	99,219
Revolving loans amortized cost basis	672	672
Revolving loans converted to term	0	0
Loans and leases receivable	664,352	616,033
Commercial real estate owner occupied | Special mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	2,876
Three years before current year	3,010	318
Four years before current year	0	2,044
Prior	2,302	572
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	5,312	5,810
Commercial real estate owner occupied | Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	3,750
Three years before current year	3,495	9,682
Four years before current year	9,635	8,824
Prior	19,099	10,823
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	32,229	33,079
Commercial real estate owner occupied | Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	0
Three years before current year	0	0
Four years before current year	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	0	0
Commercial real estate non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable	1,140,311	1,121,238
Commercial real estate non-owner occupied | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	73,544	136,897
Fiscal year before current year	135,995	171,592
Two years before current year	169,445	106,617
Three years before current year	105,535	111,259
Four years before current year	104,423	217,240
Prior	551,369	377,633
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	1,140,311	1,121,238
Commercial real estate non-owner occupied | Pass | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	73,544	136,897
Fiscal year before current year	135,995	149,898
Two years before current year	147,873	95,504
Three years before current year	76,351	66,040
Four years before current year	65,061	153,509
Prior	443,165	310,435
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	941,989	912,283
Commercial real estate non-owner occupied | Special mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	21,694
Two years before current year	21,572	11,113
Three years before current year	0	9,373
Four years before current year	953	43,215
Prior	6,069	20,540
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	28,594	105,935
Commercial real estate non-owner occupied | Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	0
Three years before current year	29,184	35,846
Four years before current year	38,409	20,516
Prior	102,135	46,658
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	169,728	103,020
Commercial real estate non-owner occupied | Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	0
Three years before current year	0	0
Four years before current year	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	0	0
Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable	161,024	198,981
Construction | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	11,779	57,105
Fiscal year before current year	70,404	49,199
Two years before current year	13,894	77,622
Three years before current year	49,175	4,828
Four years before current year	4,791	0
Prior	9,321	9,414
Revolving loans amortized cost basis	1,660	813
Revolving loans converted to term	0	0
Loans and leases receivable	161,024	198,981
Construction | Pass | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	11,779	57,105
Fiscal year before current year	70,404	49,199
Two years before current year	13,894	77,622
Three years before current year	49,175	4,828
Four years before current year	4,791	0
Prior	9,321	9,414
Revolving loans amortized cost basis	1,660	813
Revolving loans converted to term	0	0
Loans and leases receivable	161,024	198,981
Construction | Special mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	0
Three years before current year	0	0
Four years before current year	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	0	0
Construction | Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	0
Three years before current year	0	0
Four years before current year	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	0	0
Construction | Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	0
Three years before current year	0	0
Four years before current year	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	0	0
Consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	320,292	1,082,541
Fiscal year before current year	1,064,095	400,041
Two years before current year	338,870	365,340
Three years before current year	298,920	44,340
Four years before current year	44,228	9,052
Prior	183,873	140,935
Revolving loans amortized cost basis	164,520	89,817
Revolving loans converted to term	0	0
Loans and leases receivable	2,414,798	2,132,066
Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable	466,423	334,730
Residential real estate | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	8,713	107,854
Fiscal year before current year	178,623	8,251
Two years before current year	12,064	21,431
Three years before current year	31,374	12,404
Four years before current year	18,264	7,376
Prior	131,546	87,622
Revolving loans amortized cost basis	85,839	89,792
Revolving loans converted to term	0	0
Loans and leases receivable	466,423	334,730
Residential real estate | Consumer | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	8,713	107,854
Fiscal year before current year	178,623	8,251
Two years before current year	12,064	21,096
Three years before current year	31,045	11,389
Four years before current year	17,126	6,707
Prior	127,537	84,035
Revolving loans amortized cost basis	84,904	87,438
Revolving loans converted to term	0	0
Loans and leases receivable	460,012	326,770
Residential real estate | Consumer | Non-performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	335
Three years before current year	329	1,015
Four years before current year	1,138	669
Prior	4,009	3,587
Revolving loans amortized cost basis	935	2,354
Revolving loans converted to term	0	0
Loans and leases receivable	6,411	7,960
Manufactured housing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable	50,669	52,861
Manufactured housing | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	253
Three years before current year	248	299
Four years before current year	291	73
Prior	50,130	52,236
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	50,669	52,861
Manufactured housing | Consumer | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	253
Three years before current year	248	299
Four years before current year	291	73
Prior	46,315	47,537
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	46,854	48,162
Manufactured housing | Consumer | Non-performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Fiscal year before current year	0	0
Two years before current year	0	0
Three years before current year	0	0
Four years before current year	0	0
Prior	3,815	4,699
Revolving loans amortized cost basis	0	0
Revolving loans converted to term	0	0
Loans and leases receivable	3,815	4,699
Installment
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable	1,897,706	1,744,475
Installment | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	311,579	974,687
Fiscal year before current year	885,472	391,790
Two years before current year	326,806	343,656
Three years before current year	267,298	31,637
Four years before current year	25,673	1,603
Prior	2,197	1,077
Revolving loans amortized cost basis	78,681	25
Revolving loans converted to term	0	0
Loans and leases receivable	1,897,706	1,744,475
Installment | Consumer | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	311,579	973,525
Fiscal year before current year	883,638	390,788
Two years before current year	325,741	341,582
Three years before current year	265,764	31,481
Four years before current year	25,590	1,601
Prior	2,082	1,016
Revolving loans amortized cost basis	78,600	25
Revolving loans converted to term	0	0
Loans and leases receivable	1,892,994	1,740,018
Installment | Consumer | Non-performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	1,162
Fiscal year before current year	1,834	1,002
Two years before current year	1,065	2,074
Three years before current year	1,534	156
Four years before current year	83	2
Prior	115	61
Revolving loans amortized cost basis	81	0
Revolving loans converted to term	0	0
Loans and leases receivable	$ 4,712	$ 4,457

X

- Definition

Amount excluding accrued interest, before allowance for credit loss, of financing receivable.

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Amount excluding accrued interest of financing receivable originated more than five years prior to current fiscal year.

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Amount excluding accrued interest of revolving financing receivable converted to term loan.

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Amount excluding accrued interest of financing receivable originated three years prior to current fiscal year.

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