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Loans Receivable - Information on Individually Evaluated, Disaggregated by Loan Class (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | $ 90,961 | $ 64,766 | $ 25,125
Unpaid Principal Balance | 94,458 | 66,760 | 27,761
With No Related Allowance Recorded | 66,561 | 18,393 | 16,613
With an Allowance Recorded | 24,400 | 46,373 | 8,512
Related Allowance | 14,053 | 25,778 | 1,812
Average Recorded Investment | 97,748 | 58,677 | 29,013
Interest Income Recognized | 758 | 1,052 | 1,674
Real Estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 65,160 | 45,164 | 15,600
Unpaid Principal Balance | 68,533 | 46,761 | 17,998
With No Related Allowance Recorded | 64,185 | 17,138 | 13,713
With an Allowance Recorded | 975 | 28,026 | 1,887
Related Allowance | 21 | 14,029 | 1
Average Recorded Investment | 69,850 | 34,462 | 20,216
Interest Income Recognized |  | 495 | 1,417
Real Estate | Retail |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 6,331 | 434 | 2,166
Unpaid Principal Balance | 6,423 | 459 | 2,207
With No Related Allowance Recorded | 6,330 | 111 | 1,894
With an Allowance Recorded | 1 | 323 | 272
Related Allowance |  | 19 |
Average Recorded Investment | 6,728 | 894 | 2,001
Interest Income Recognized |  | 13 | 183
Real Estate | Hospitality |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 20,612 | 244 | 4,282
Unpaid Principal Balance | 20,627 | 400 | 5,773
With No Related Allowance Recorded | 20,612 | 22 | 4,032
With an Allowance Recorded |  | 223 | 250
Related Allowance |  | 24 |
Average Recorded Investment | 21,120 | 1,683 | 7,285
Interest Income Recognized |  |  | 482
Real Estate | Other |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 10,430 | 14,864 | 7,525
Unpaid Principal Balance | 11,736 | 15,151 | 8,016
With No Related Allowance Recorded | 9,522 | 14,696 | 6,253
With an Allowance Recorded | 908 | 167 | 1,272
Related Allowance | 20 | 12 | 1
Average Recorded Investment | 11,202 | 10,619 | 7,978
Interest Income Recognized |  | 168 | 601
Real Estate | Total commercial property loans |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 37,373 | 15,542 | 13,973
Unpaid Principal Balance | 38,786 | 16,010 | 15,996
With No Related Allowance Recorded | 36,464 | 14,829 | 12,179
With an Allowance Recorded | 909 | 713 | 1,794
Related Allowance | 20 | 55 | 1
Average Recorded Investment | 39,050 | 13,196 | 17,264
Interest Income Recognized |  | 181 | 1,266
Real Estate | Construction |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 24,854 | 27,201 |
Unpaid Principal Balance | 26,494 | 28,000 |
With No Related Allowance Recorded | 24,854 |  |
With an Allowance Recorded |  | 27,201 |
Related Allowance |  | 13,973 |
Average Recorded Investment | 27,803 | 18,421 |
Interest Income Recognized |  | 249 |
Real Estate | Residential/Consumer Loans |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 2,933 | 2,421 | 1,627
Unpaid Principal Balance | 3,253 | 2,751 | 2,002
With No Related Allowance Recorded | 2,867 | 2,309 | 1,534
With an Allowance Recorded | 66 | 112 | 93
Related Allowance | 1 | 1 |
Average Recorded Investment | 2,997 | 2,845 | 2,952
Interest Income Recognized |  | 66 | 151
Commercial and Industrial |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 14,568 | 13,700 | 4,396
Unpaid Principal Balance | 14,688 | 14,090 | 4,601
With No Related Allowance Recorded | 58 | 143 | 1,644
With an Allowance Recorded | 14,510 | 13,557 | 2,752
Related Allowance | 7,976 | 8,885 | 428
Average Recorded Investment | 14,751 | 19,361 | 3,568
Interest Income Recognized |  | 512 | 211
Leases Receivable |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 11,233 | 5,902 | 5,129
Unpaid Principal Balance | 11,237 | 5,909 | 5,162
With No Related Allowance Recorded | 2,318 | 1,112 | 1,256
With an Allowance Recorded | 8,915 | 4,790 | 3,873
Related Allowance | 6,056 | 2,863 | 1,383
Average Recorded Investment | 13,147 | 4,854 | 5,229
Interest Income Recognized | $ 758 | $ 44 | $ 46

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