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Loans and Investments - Allowance for Credit Losses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Changes in allowance for loan losses |  |
Allowance at beginning of period | $ 148,329 | $ 71,069
Provision for credit losses (net of recoveries) | (24,315) | 59,966
Charge-offs | (24,315) | (75)
Allowance at end of period | 113,241 | 148,329
Unfunded commitments related to structured loans and investments | 975,200 |
As Reported Pre-Adoption |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 148,329 |
Allowance at end of period |  | 148,329
Impact of adopting CECL |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period |  | 17,294
Impact of adopting CECL | Impact of Adoption |  |
Changes in allowance for loan losses |  |
Charge-offs | (10,773) |
Land |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 78,150 | 67,869
Provision for credit losses (net of recoveries) | (180) | 10,204
Allowance at end of period | 77,970 | 78,150
Land | As Reported Pre-Adoption |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 78,150 |
Allowance at end of period |  | 78,150
Land | Impact of adopting CECL |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period |  | 77
Multifamily Portfolio |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 36,468 |
Provision for credit losses (net of recoveries) | (17,761) | 20,146
Allowance at end of period | 18,707 | 36,468
Multifamily Portfolio | As Reported Pre-Adoption |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 36,468 |
Allowance at end of period |  | 36,468
Multifamily Portfolio | Impact of adopting CECL |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period |  | 16,322
Retail |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 13,861 |
Provision for credit losses (net of recoveries) | (42) | 13,526
Allowance at end of period | 5,819 | 13,861
Retail | As Reported Pre-Adoption |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 13,861 |
Allowance at end of period |  | 13,861
Retail | Impact of adopting CECL |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period |  | 335
Retail | Impact of adopting CECL | Impact of Adoption |  |
Changes in allowance for loan losses |  |
Charge-offs | (8,000) |
Office |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 1,846 | 1,500
Provision for credit losses (net of recoveries) | 6,227 | 59
Allowance at end of period | 8,073 | 1,846
Office | As Reported Pre-Adoption |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 1,846 |
Allowance at end of period |  | 1,846
Office | Impact of adopting CECL |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period |  | 287
Healthcare |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 3,880 |
Provision for credit losses (net of recoveries) | (1,099) | 3,816
Allowance at end of period | 8 | 3,880
Healthcare | As Reported Pre-Adoption |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 3,880 |
Allowance at end of period |  | 3,880
Healthcare | Impact of adopting CECL |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period |  | 64
Healthcare | Impact of adopting CECL | Impact of Adoption |  |
Changes in allowance for loan losses |  |
Charge-offs | (2,773) |
Student Housing |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 4,078 |
Provision for credit losses (net of recoveries) | (3,442) | 4,010
Allowance at end of period | 636 | 4,078
Student Housing | As Reported Pre-Adoption |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 4,078 |
Allowance at end of period |  | 4,078
Student Housing | Impact of adopting CECL |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period |  | 68
Hotel Portfolio |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 7,759 |
Provision for credit losses (net of recoveries) | (7,751) | 7,730
Allowance at end of period | 8 | 7,759
Hotel Portfolio | As Reported Pre-Adoption |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 7,759 |
Allowance at end of period |  | 7,759
Hotel Portfolio | Impact of adopting CECL |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period |  | 29
Other Property |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 2,287 | 1,700
Provision for credit losses (net of recoveries) | (267) | 475
Allowance at end of period | 2,020 | 2,287
Other Property | As Reported Pre-Adoption |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | 2,287 |
Allowance at end of period |  | 2,287
Other Property | Impact of adopting CECL |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period |  | 112
Bridge Loans | Hotel Portfolio |  |
Changes in allowance for loan losses |  |
Allowance at beginning of period | $ 7,500 |
Allowance at end of period |  | $ 7,500

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- Definition Represents the amount of outstanding unfunded commitments related to loans and investments that the entity is obligated to fund as the borrowers meet certain requirements. + References No definition available. + Details
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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=122038336&loc=d3e74567-122707 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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