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v3.20.2

Basis of Presentation and Significant Accounting Policies (Details) $ in Thousands | 9 Months Ended |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2020 USD ($) segment | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Jan. 01, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Number of segments | segment | 2 |  |  |  |  |  |  |  |
Accounting Standards Update [Extensible List] | us-gaap:AccountingStandardsUpdate201609Member |  |  |  |  |  |  |  |
Decrease in retained earnings due to cumulative effect of new accounting principle | $ (214,616) | $ (206,923) | $ (197,723) |  | $ (207,117) | $ (204,039) | $ (206,338) | $ (208,838) | $ (205,947)
Residential Mortgage Holding Company |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership percentage | 100.00% |  |  |  |  |  |  |  |
Retained Earnings |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Decrease in retained earnings due to cumulative effect of new accounting principle | $ (165,606) | $ (155,998) | $ (148,286) |  | (149,615) | $ (147,217) | $ (141,878) | $ (139,677) | $ (137,452)
Cumulative effect of adoption of accounting principles related to equity compensation expense |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Decrease in retained earnings due to cumulative effect of new accounting principle |  |  |  |  | 0 |  |  |  |
Cumulative effect of adoption of accounting principles related to equity compensation expense | Retained Earnings |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Decrease in retained earnings due to cumulative effect of new accounting principle |  |  |  | $ 139 | $ 139 |  |  |  |

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