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Loans and Investments - Allowance for Credit Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2020 | Jun. 30, 2020 | Jun. 30, 2019
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period | $ 142,252 | $ 71,069 |  |
Provision for credit loss expense | 10,559 | 64,400 |  |
Allowance at end of period | 152,811 | 152,811 |  |
Allowance for credit losses | 142,252 | 71,069 | $ 152,811 | $ 71,069
Accrued interest receivable related to loans |  |  | 36,200 |
Unfunded commitments related to structured loans and investments |  |  | 150,900 |
As Reported Pre-Adoption |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 71,069 |  |
Provision for credit loss expense |  | 64,448 |  |
Allowance at end of period | 152,811 | 152,811 |  |
Allowance for credit losses | 152,811 | 152,811 | 152,811 | 71,069
Impact of Adoption | Impact of adopting CECL |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 17,294 |  |
Allowance at end of period | 17,300 | 17,300 |  |
Allowance for credit losses | 17,300 | 17,300 | 17,300 |
Land |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period | 78,418 |  |  |
Provision for credit loss expense | (324) | 10,148 |  |
Allowance at end of period | 78,094 | 78,094 |  |
Allowance for credit losses | 78,094 | 78,094 | 78,094 | 67,869
Land | As Reported Pre-Adoption |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 67,869 |  |
Allowance for credit losses |  | 67,869 |  |
Land | Impact of Adoption | Impact of adopting CECL |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 77 |  |
Allowance for credit losses |  | 77 |  |
Multifamily |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period | 31,891 |  |  |
Provision for credit loss expense | 2,715 | 18,284 |  |
Allowance at end of period | 34,606 | 34,606 |  |
Allowance for credit losses | 34,606 | 34,606 | 34,606 |
Multifamily | Impact of Adoption | Impact of adopting CECL |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 16,322 |  |
Allowance for credit losses |  | 16,322 |  |
Retail |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period | 11,322 |  |  |
Provision for credit loss expense | 2,659 | 13,646 |  |
Allowance at end of period | 13,981 | 13,981 |  |
Allowance for credit losses | 13,981 | 13,981 | 13,981 |
Retail | Impact of Adoption | Impact of adopting CECL |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 335 |  |
Allowance for credit losses |  | 335 |  |
Office |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period | 6,096 |  |  |
Provision for credit loss expense | 2,436 | 6,745 |  |
Allowance at end of period | 8,532 | 8,532 |  |
Allowance for credit losses | 8,532 | 8,532 | 8,532 | 1,500
Office | As Reported Pre-Adoption |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 1,500 |  |
Allowance for credit losses |  | 1,500 |  |
Office | Impact of Adoption | Impact of adopting CECL |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 287 |  |
Allowance for credit losses |  | 287 |  |
Hotel |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period | 7,528 |  |  |
Provision for credit loss expense | 144 | 7,643 |  |
Allowance at end of period | 7,672 | 7,672 |  |
Allowance for credit losses | 7,672 | 7,672 | 7,672 |
Hotel | Impact of Adoption | Impact of adopting CECL |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 29 |  |
Allowance for credit losses |  | 29 |  |
Student Housing |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period | 1,142 |  |  |
Provision for credit loss expense | 2,968 | 4,042 |  |
Allowance at end of period | 4,110 | 4,110 |  |
Allowance for credit losses | 4,110 | 4,110 | 4,110 |
Student Housing | Impact of Adoption | Impact of adopting CECL |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 68 |  |
Allowance for credit losses |  | 68 |  |
Healthcare |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period | 3,934 |  |  |
Provision for credit loss expense | (4) | 3,866 |  |
Allowance at end of period | 3,930 | 3,930 |  |
Allowance for credit losses | 3,930 | 3,930 | 3,930 |
Healthcare | Impact of Adoption | Impact of adopting CECL |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 64 |  |
Allowance for credit losses |  | 64 |  |
Other |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period | 1,921 |  |  |
Provision for credit loss expense | (35) | 74 |  |
Allowance at end of period | 1,886 | 1,886 |  |
Allowance for credit losses | $ 1,886 | 1,886 | $ 1,886 | $ 1,700
Other | As Reported Pre-Adoption |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 1,700 |  |
Allowance for credit losses |  | 1,700 |  |
Other | Impact of Adoption | Impact of adopting CECL |  |  |  |
Changes in allowance for loan losses |  |  |  |
Allowance at beginning of period |  | 112 |  |
Allowance for credit losses |  | $ 112 |  |

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