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Segment Information - Statements of Income (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 USD ($) segment | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Segment Information |  |  |
Interest income | $ 948,401 | $ 466,087 | $ 339,465
Interest expense | 557,617 | 212,005 | 169,216
Net interest income | 390,784 | 254,082 | 170,249
Other revenue: |  |  |
Gain on sales, including fee-based services, net | 55,816 | 123,037 | 94,607
Mortgage servicing rights | 69,346 | 130,230 | 165,517
Servicing revenue | $ 152,068 | $ 133,429 | $ 103,607
Contractually Specified Servicing Fee Income, Statement of Income or Comprehensive Income [Extensible Enumeration] | Contractually Specified Servicing Fees, Amount, Net | Contractually Specified Servicing Fees, Amount, Net | Contractually Specified Servicing Fees, Amount, Net
Amortization of MSRs | $ (59,876) | $ (58,615) | $ (49,222)
Property operating income | 1,877 | 185 | 3,976
Gain (loss) on derivative instruments, net | 26,609 | (2,684) | (58,335)
Other income, net | (17,563) | 7,566 | 4,109
Total other revenue | 228,277 | 333,148 | 264,259
Other expenses: |  |  |
Employee compensation and benefits | 161,825 | 171,796 | 144,380
Selling and administrative | 53,990 | 45,575 | 37,348
Property operating expenses | 2,136 | 718 | 4,898
Depreciation and amortization | 8,732 | 7,215 | 7,640
Provision for loss sharing (net of recoveries) | 1,862 | (6,167) | 14,822
Provision for credit losses (net of recoveries) | 21,169 | (21,113) | 61,110
Litigation settlement | 7,350 |  |
Total other expenses | 257,064 | 198,024 | 270,198
Income before extinguishment of debt, sale of real estate, income from equity affiliates and income taxes | 361,997 | 389,206 | 164,310
Loss on extinguishment of debt | (4,933) | (3,374) | (3,546)
Gain (loss) on sale of real estate |  | 3,693 | (375)
Income from equity affiliates | 14,247 | 34,567 | 76,161
Provision for income taxes | (17,484) | (46,285) | (40,393)
Net income | 353,827 | 377,807 | 196,157
Preferred stock dividends | 40,954 | 21,888 | 7,554
Net income attributable to noncontrolling interest | 28,044 | 38,507 | 25,208
Net income attributable to common stockholders | $ 284,829 | 317,412 | 163,395
Reporting segments | segment | 2 |  |
Operating segments | Structured Business |  |  |
Segment Information |  |  |
Interest income | $ 903,622 | 427,039 | 305,893
Interest expense | 538,659 | 194,435 | 150,964
Net interest income | 364,963 | 232,604 | 154,929
Other revenue: |  |  |
Property operating income | 1,877 | 185 | 3,976
Gain (loss) on derivative instruments, net |  |  | (2,859)
Other income, net | (2,360) | 7,491 | 4,052
Total other revenue | (483) | 7,676 | 5,169
Other expenses: |  |  |
Employee compensation and benefits | 56,032 | 51,225 | 40,292
Selling and administrative | 26,059 | 21,064 | 15,706
Property operating expenses | 2,136 | 718 | 4,898
Depreciation and amortization | 4,041 | 2,524 | 2,391
Provision for credit losses (net of recoveries) | 19,770 | (21,223) | 59,967
Litigation settlement | 7,350 |  |
Total other expenses | 115,388 | 54,308 | 123,254
Income before extinguishment of debt, sale of real estate, income from equity affiliates and income taxes | 249,092 | 185,972 | 36,844
Loss on extinguishment of debt | (4,933) | (3,374) | (3,546)
Gain (loss) on sale of real estate |  | 2,466 | (878)
Income from equity affiliates | 14,247 | 34,567 | 76,161
Provision for income taxes | (821) | (5,940) | (14,303)
Net income | 257,585 | 213,691 | 94,278
Preferred stock dividends | 40,954 | 21,888 | 7,554
Net income attributable to common stockholders | 216,631 | 191,803 | 86,724
Operating segments | Agency Business Segment |  |  |
Segment Information |  |  |
Interest income | 44,779 | 39,048 | 33,572
Interest expense | 18,958 | 17,570 | 18,252
Net interest income | 25,821 | 21,478 | 15,320
Other revenue: |  |  |
Gain on sales, including fee-based services, net | 55,816 | 123,037 | 94,607
Mortgage servicing rights | 69,346 | 130,230 | 165,517
Servicing revenue | 152,068 | 133,429 | 103,607
Amortization of MSRs | (59,876) | (58,615) | (49,222)
Gain (loss) on derivative instruments, net | 26,609 | (2,684) | (55,476)
Other income, net | (15,203) | 75 | 57
Total other revenue | 228,760 | 325,472 | 259,090
Other expenses: |  |  |
Employee compensation and benefits | 105,793 | 120,571 | 104,088
Selling and administrative | 27,931 | 24,511 | 21,642
Depreciation and amortization | 4,691 | 4,691 | 5,249
Provision for loss sharing (net of recoveries) | 1,862 | (6,167) | 14,822
Provision for credit losses (net of recoveries) | 1,399 | 110 | 1,143
Total other expenses | 141,676 | 143,716 | 146,944
Income before extinguishment of debt, sale of real estate, income from equity affiliates and income taxes | 112,905 | 203,234 | 127,466
Gain (loss) on sale of real estate |  | 1,227 | 503
Provision for income taxes | (16,663) | (40,345) | (26,090)
Net income | 96,242 | 164,116 | 101,879
Net income attributable to common stockholders | 96,242 | 164,116 | 101,879
Other / Eliminations |  |  |
Other expenses: |  |  |
Net income attributable to noncontrolling interest | 28,044 | 38,507 | 25,208
Net income attributable to common stockholders | $ (28,044) | $ (38,507) | $ (25,208)

X
- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit), extinguishment of debt, sale of real estate and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. + References No definition available. + Details
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- Definition The periodic amortization (in proportion to and over the period of estimated net servicing income or loss) of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(4) -URI https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746 + Details
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- Definition All amounts that, per contract, are due to the servicer in exchange for servicing the financial asset and would no longer be received by a servicer if the beneficial owners of the serviced assets (or their trustees or agents) were to exercise their actual or potential authority under the contract to shift the servicing to another servicer. Depending on the servicing contract, those fees may include some or all of the difference between the interest rate collected on the asset being serviced and the rate to be paid to the beneficial owners of the asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=128311188&loc=d3e122596-111746 + Details
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