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Loans Receivable, Net - ALLL and Loans Receivable Summary (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Loans Receivable and Allowance for Loan and Lease Losses |  |  |  |
Individually evaluated for impairment |  | $ 94,504 |  |
Collectively evaluated for impairment |  | 9,418,306 |  |
Total loans receivable | $ 11,122,696 | 9,512,810 |  |
Individually evaluated for impairment |  | 95 |  |
Collectively evaluated for impairment |  | 124,395 |  |
Total ALLL | 158,243 | 124,490 | $ 131,239 | $ 129,568
Residential Real Estate |  |  |  |
Loans Receivable and Allowance for Loan and Lease Losses |  |  |  |
Individually evaluated for impairment |  | 7,804 |  |
Collectively evaluated for impairment |  | 918,584 |  |
Total loans receivable | 802,508 | 926,388 |  |
Individually evaluated for impairment |  | 0 |  |
Collectively evaluated for impairment |  | 10,111 |  |
Total ALLL | 9,604 | 10,111 | 10,631 | 10,798
Commercial Real Estate |  |  |  |
Loans Receivable and Allowance for Loan and Lease Losses |  |  |  |
Individually evaluated for impairment |  | 58,609 |  |
Collectively evaluated for impairment |  | 5,520,698 |  |
Total loans receivable | 6,315,895 | 5,579,307 |  |
Individually evaluated for impairment |  | 73 |  |
Collectively evaluated for impairment |  | 69,423 |  |
Total ALLL | 86,999 | 69,496 | 72,448 | 68,515
Other Commercial |  |  |  |
Loans Receivable and Allowance for Loan and Lease Losses |  |  |  |
Individually evaluated for impairment |  | 21,475 |  |
Collectively evaluated for impairment |  | 2,072,779 |  |
Total loans receivable | 3,054,817 | 2,094,254 |  |
Individually evaluated for impairment |  | 10 |  |
Collectively evaluated for impairment |  | 36,119 |  |
Total ALLL | 49,133 | 36,129 | 38,160 | 39,303
Home Equity |  |  |  |
Loans Receivable and Allowance for Loan and Lease Losses |  |  |  |
Individually evaluated for impairment |  | 3,745 |  |
Collectively evaluated for impairment |  | 613,456 |  |
Total loans receivable | 636,405 | 617,201 |  |
Individually evaluated for impairment |  | 0 |  |
Collectively evaluated for impairment |  | 4,937 |  |
Total ALLL | 8,182 | 4,937 | 5,811 | 6,204
Consumer and Other |  |  |  |
Loans Receivable and Allowance for Loan and Lease Losses |  |  |  |
Individually evaluated for impairment |  | 2,871 |  |
Collectively evaluated for impairment |  | 292,789 |  |
Total loans receivable | 313,071 | 295,660 |  |
Individually evaluated for impairment |  | 12 |  |
Collectively evaluated for impairment |  | 3,805 |  |
Total ALLL | $ 4,325 | $ 3,817 | $ 4,189 | $ 4,748

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