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Loans and Investments - Risk Ratings and LTV Ratios (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 | Dec. 31, 2019
Loans and Investments |  |
Percentage of Portfolio | 100.00% | 100.00%
Wtd. Avg. First Dollar LTV Ratio (as percent) | 4.00% | 4.00%
Wtd. Avg. Last Dollar LTV Ratio (as percent) | 78.00% | 76.00%
Credit risk concentration |  |
Loans and Investments |  |
Origination Year 2020 | $ 1,093,949 |
Origination Year 2019 | 2,503,786 |
Origination Year 2018 | 593,030 |
Origination Year 2017 | 582,331 |
Origination Year 2016 | 8,250 |
Origination Year Prior | 190,792 |
Amortized cost basis | $ 4,972,138 |
Wtd. Avg. First Dollar LTV Ratio (as percent) | 4.00% |
Wtd. Avg. Last Dollar LTV Ratio (as percent) | 78.00% |
Credit risk concentration | Loans and investments portfolio | New York |  |
Loans and Investments |  |
Concentration risk, percentage | 16.00% | 18.00%
Credit risk concentration | Loans and investments portfolio | Texas |  |
Loans and Investments |  |
Concentration risk, percentage | 12.00% | 12.00%
Credit risk concentration | Multifamily |  |
Loans and Investments |  |
Origination Year 2020 | $ 966,989 |
Origination Year 2019 | 2,194,322 |
Origination Year 2018 | 410,781 |
Origination Year 2017 | 358,100 |
Origination Year 2016 | 8,250 |
Origination Year Prior | 46,785 |
Amortized cost basis | $ 3,985,227 |
Percentage of Portfolio | 80.00% |
Wtd. Avg. First Dollar LTV Ratio (as percent) | 4.00% |
Wtd. Avg. Last Dollar LTV Ratio (as percent) | 77.00% |
Credit risk concentration | Multifamily | Pass |  |
Loans and Investments |  |
Origination Year 2020 | $ 487,598 |
Origination Year 2019 | 454,747 |
Origination Year 2018 | 19,300 |
Origination Year 2017 | 32,500 |
Origination Year Prior | 905 |
Amortized cost basis | 995,050 |
Credit risk concentration | Multifamily | Pass/watch |  |
Loans and Investments |  |
Origination Year 2020 | 454,466 |
Origination Year 2019 | 1,131,309 |
Origination Year 2018 | 187,805 |
Origination Year 2017 | 173,600 |
Origination Year Prior | 28,800 |
Amortized cost basis | 1,975,980 |
Credit risk concentration | Multifamily | Special mention |  |
Loans and Investments |  |
Origination Year 2020 | 24,925 |
Origination Year 2019 | 572,887 |
Origination Year 2018 | 160,749 |
Origination Year 2017 | 134,300 |
Origination Year Prior | 17,080 |
Amortized cost basis | 909,941 |
Credit risk concentration | Multifamily | Substandard |  |
Loans and Investments |  |
Origination Year 2019 | 35,379 |
Origination Year 2018 | 42,927 |
Origination Year 2017 | 17,700 |
Origination Year 2016 | 8,250 |
Amortized cost basis | 104,256 |
Credit risk concentration | Land |  |
Loans and Investments |  |
Origination Year 2020 | 71,018 |
Origination Year 2019 | 19,524 |
Origination Year 2017 | 19,975 |
Origination Year Prior | 127,928 |
Amortized cost basis | $ 238,445 |
Percentage of Portfolio | 5.00% |
Wtd. Avg. First Dollar LTV Ratio (as percent) | 0.00% |
Wtd. Avg. Last Dollar LTV Ratio (as percent) | 91.00% |
Credit risk concentration | Land | Special mention |  |
Loans and Investments |  |
Origination Year 2020 | $ 71,018 |
Origination Year 2019 | 19,524 |
Origination Year 2017 | 19,975 |
Amortized cost basis | 110,517 |
Credit risk concentration | Land | Substandard |  |
Loans and Investments |  |
Origination Year Prior | 127,928 |
Amortized cost basis | 127,928 |
Credit risk concentration | Healthcare |  |
Loans and Investments |  |
Origination Year 2019 | 80,919 |
Origination Year 2018 | 76,500 |
Origination Year 2017 | 46,275 |
Amortized cost basis | $ 203,694 |
Percentage of Portfolio | 3.00% |
Wtd. Avg. First Dollar LTV Ratio (as percent) | 0.00% |
Wtd. Avg. Last Dollar LTV Ratio (as percent) | 78.00% |
Credit risk concentration | Healthcare | Pass |  |
Loans and Investments |  |
Origination Year 2019 | $ 6,600 |
Origination Year 2018 | 10,000 |
Amortized cost basis | 16,600 |
Credit risk concentration | Healthcare | Pass/watch |  |
Loans and Investments |  |
Origination Year 2019 | 14,750 |
Origination Year 2018 | 51,500 |
Origination Year 2017 | 41,650 |
Amortized cost basis | 107,900 |
Credit risk concentration | Healthcare | Special mention |  |
Loans and Investments |  |
Origination Year 2019 | 59,569 |
Origination Year 2018 | 15,000 |
Amortized cost basis | 74,569 |
Credit risk concentration | Healthcare | Doubtful |  |
Loans and Investments |  |
Origination Year 2017 | 4,625 |
Amortized cost basis | 4,625 |
Credit risk concentration | Student Housing |  |
Loans and Investments |  |
Origination Year 2020 | 23,500 |
Origination Year 2019 | 44,500 |
Origination Year 2018 | 16,350 |
Origination Year 2017 | 67,250 |
Amortized cost basis | $ 151,600 |
Percentage of Portfolio | 4.00% |
Wtd. Avg. First Dollar LTV Ratio (as percent) | 12.00% |
Wtd. Avg. Last Dollar LTV Ratio (as percent) | 76.00% |
Credit risk concentration | Student Housing | Special mention |  |
Loans and Investments |  |
Origination Year 2019 | $ 44,500 |
Origination Year 2018 | 3,350 |
Amortized cost basis | 47,850 |
Credit risk concentration | Student Housing | Substandard |  |
Loans and Investments |  |
Origination Year 2020 | 23,500 |
Origination Year 2018 | 13,000 |
Origination Year 2017 | 67,250 |
Amortized cost basis | 103,750 |
Credit risk concentration | Office |  |
Loans and Investments |  |
Origination Year 2018 | 47,799 |
Origination Year 2017 | 77,151 |
Origination Year Prior | 10,826 |
Amortized cost basis | $ 135,776 |
Percentage of Portfolio | 3.00% |
Wtd. Avg. First Dollar LTV Ratio (as percent) | 3.00% |
Wtd. Avg. Last Dollar LTV Ratio (as percent) | 76.00% |
Credit risk concentration | Office | Pass |  |
Loans and Investments |  |
Origination Year 2018 | $ 5,000 |
Amortized cost basis | 5,000 |
Credit risk concentration | Office | Pass/watch |  |
Loans and Investments |  |
Origination Year 2017 | 34,000 |
Amortized cost basis | 34,000 |
Credit risk concentration | Office | Special mention |  |
Loans and Investments |  |
Origination Year 2017 | 43,151 |
Origination Year Prior | 9,946 |
Amortized cost basis | 53,097 |
Credit risk concentration | Office | Substandard |  |
Loans and Investments |  |
Origination Year 2018 | 42,799 |
Amortized cost basis | 42,799 |
Credit risk concentration | Office | Doubtful |  |
Loans and Investments |  |
Origination Year Prior | 880 |
Amortized cost basis | 880 |
Credit risk concentration | Single-Family Rental |  |
Loans and Investments |  |
Origination Year 2020 | 32,442 |
Origination Year 2019 | 69,521 |
Amortized cost basis | $ 101,963 |
Percentage of Portfolio | 2.00% |
Wtd. Avg. First Dollar LTV Ratio (as percent) | 0.00% |
Wtd. Avg. Last Dollar LTV Ratio (as percent) | 75.00% |
Credit risk concentration | Single-Family Rental | Pass |  |
Loans and Investments |  |
Origination Year 2020 | $ 8,565 |
Origination Year 2019 | 34,607 |
Amortized cost basis | 43,172 |
Credit risk concentration | Single-Family Rental | Pass/watch |  |
Loans and Investments |  |
Origination Year 2020 | 104 |
Origination Year 2019 | 34,753 |
Amortized cost basis | 34,857 |
Credit risk concentration | Single-Family Rental | Special mention |  |
Loans and Investments |  |
Origination Year 2020 | 23,773 |
Origination Year 2019 | 161 |
Amortized cost basis | 23,934 |
Credit risk concentration | Hotel |  |
Loans and Investments |  |
Origination Year 2019 | 91,000 |
Amortized cost basis | $ 91,000 |
Percentage of Portfolio | 2.00% |
Wtd. Avg. First Dollar LTV Ratio (as percent) | 32.00% |
Wtd. Avg. Last Dollar LTV Ratio (as percent) | 91.00% |
Credit risk concentration | Hotel | Substandard |  |
Loans and Investments |  |
Origination Year 2019 | $ 91,000 |
Amortized cost basis | 91,000 |
Credit risk concentration | Other |  |
Loans and Investments |  |
Origination Year 2019 | 4,000 |
Origination Year 2018 | 41,600 |
Origination Year 2017 | 13,580 |
Origination Year Prior | 5,253 |
Amortized cost basis | $ 64,433 |
Percentage of Portfolio | 1.00% |
Wtd. Avg. First Dollar LTV Ratio (as percent) | 7.00% |
Wtd. Avg. Last Dollar LTV Ratio (as percent) | 79.00% |
Credit risk concentration | Other | Pass |  |
Loans and Investments |  |
Origination Year 2019 | $ 4,000 |
Amortized cost basis | 4,000 |
Credit risk concentration | Other | Pass/watch |  |
Loans and Investments |  |
Origination Year 2018 | 9,000 |
Origination Year 2017 | 13,580 |
Amortized cost basis | 22,580 |
Credit risk concentration | Other | Substandard |  |
Loans and Investments |  |
Origination Year 2018 | 32,600 |
Origination Year Prior | 3,553 |
Amortized cost basis | 36,153 |
Credit risk concentration | Other | Doubtful |  |
Loans and Investments |  |
Origination Year Prior | 1,700 |
Amortized cost basis | $ 1,700 |

X
- Definition Represents the weighted average First Dollar LTV Ratio that is calculated by comparing the total of the company's senior most dollar and all senior lien positions within the capital stack to the fair value of the underlying collateral to determine the point at which the company will absorb a total loss of its position. + References No definition available. + Details
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- Definition Represents the weighted average loan to value ratio that is calculated by comparing the total of the carrying value of the company's loan and all senior lien positions within the capital stack to the fair value of the underlying collateral to determine the point at which the company will initially absorb a loss. + References No definition available. + Details
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13531-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
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