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Residential Loans - Loan Product Type and Accompanying Loan Characteristics of Residential Loans (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($) | Dec. 31, 2017 USD ($) loan | Dec. 31, 2017 USD ($) Contract | Dec. 31, 2016 USD ($) loan
Residential loans, held-for-investment |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
90 Days DQ | $ 25,457 | $ 25,457 | $ 25,457 |
Residential loans, held-for-investment | Fixed Loans | Over $1,000 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.00% |  |  |
Residential Loans Held For Sale |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 2,013 |  | 1,121
Total Principal | $ 1,409,179 | $ 1,409,179 | 1,409,179 | $ 833,385
30-89 Days DQ | 1,913 | 1,913 | 1,913 | 0
90 Days DQ | 459 | 459 | 459 | 300
Residential Loans Held For Sale | Hybrid ARM Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | 443 | 443 | 443 | 2
Loan Balance, maximum | 2,000 | $ 2,000 | 2,000 | $ 1,947
Number of Loans | loan |  | 93 |  | 173
Total Principal | 78,884 | $ 78,884 | 78,884 | $ 144,174
30-89 Days DQ | 0 | 0 | 0 | 0
90 Days DQ | $ 0 | 0 | 0 | $ 0
Residential Loans Held For Sale | Hybrid ARM Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.88% |  |  | 2.50%
Residential Loans Held For Sale | Hybrid ARM Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 4.00% |  |  | 6.00%
Residential Loans Held For Sale | Fixed Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 132 | 132 | 132 | $ 404
Loan Balance, maximum | 1,950 | $ 1,950 | 1,950 | $ 1,997
Number of Loans | loan |  | 1,917 |  | 942
Total Principal | 1,329,851 | $ 1,329,851 | 1,329,851 | $ 688,329
30-89 Days DQ | 1,913 | 1,913 | 1,913 | 0
90 Days DQ | $ 459 | 459 | 459 | $ 0
Residential Loans Held For Sale | Fixed Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.88% |  |  | 2.99%
Residential Loans Held For Sale | Fixed Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.25% |  |  | 6.25%
Residential Loans Held For Sale | ARM Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 58 | 58 | 58 | $ 61
Loan Balance, maximum | 290 | $ 290 | 290 | $ 396
Number of Loans | loan |  | 3 |  | 6
Total Principal | 444 | $ 444 | 444 | $ 882
30-89 Days DQ | 0 | 0 | 0 | 0
90 Days DQ | $ 0 | $ 0 | 0 | $ 300
Residential Loans Held For Sale | ARM Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 1.50% |  |  | 1.88%
Residential Loans Held For Sale | ARM Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.00% |  |  | 2.75%
Legacy Sequoia | Residential loans, held-for-investment |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 3,178 |  | 3,735
Total Principal | $ 697,922 | $ 697,922 | 697,922 | $ 886,981
30-89 Days DQ | 20,303 | 20,303 | 20,303 | 32,356
90 Days DQ | 25,457 | $ 25,457 | 25,457 | $ 30,166
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 33 |  | 37
Total Principal | 15,211 | $ 15,211 | 15,211 | $ 17,691
30-89 Days DQ | 0 | 0 | 0 | 669
90 Days DQ | $ 641 | 641 | 641 | 0
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.63% |  |  |
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.75% |  |  |
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $0 to $250 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 0 | 0 | 0 | 0
Loan Balance, maximum | 250 | $ 250 | 250 | $ 250
Number of Loans | loan |  | 4 |  | 4
Total Principal | 530 | $ 530 | 530 | $ 453
30-89 Days DQ | 0 | 0 | 0 | 0
90 Days DQ | $ 0 | 0 | 0 | $ 0
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $0 to $250 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.25% |  |  | 3.00%
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $0 to $250 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.75% |  |  | 3.00%
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $251 to $500 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 251 | 251 | 251 | $ 251
Loan Balance, maximum | 500 | $ 500 | 500 | $ 500
Number of Loans | loan |  | 17 |  | 18
Total Principal | 6,170 | $ 6,170 | 6,170 | $ 6,516
30-89 Days DQ | 0 | 0 | 0 | 0
90 Days DQ | $ 0 | 0 | 0 | $ 0
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $251 to $500 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.63% |  |  | 2.63%
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $251 to $500 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.75% |  |  | 3.13%
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $501 to $750 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 501 | 501 | 501 | $ 501
Loan Balance, maximum | 750 | $ 750 | 750 | $ 750
Number of Loans | loan |  | 11 |  | 13
Total Principal | 7,091 | $ 7,091 | 7,091 | $ 8,483
30-89 Days DQ | 0 | 0 | 0 | 669
90 Days DQ | $ 641 | 641 | 641 | $ 0
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $501 to $750 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.38% |  |  | 2.75%
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $501 to $750 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.75% |  |  | 3.13%
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $751 to $1,000 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum |  |  |  | $ 751
Loan Balance, maximum |  |  |  | $ 1,000
Number of Loans | loan |  |  |  | 1
Total Principal |  |  |  | $ 751
30-89 Days DQ |  |  |  | 0
90 Days DQ |  |  |  | $ 0
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $751 to $1,000 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate |  |  |  | 3.13%
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | $751 to $1,000 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate |  |  |  | 3.13%
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | Over $1,000 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum |  |  |  |
Loan Balance, maximum | 1,000 | $ 1,000 | 1,000 | $ 1,000
Number of Loans | loan |  | 1 |  | 1
Total Principal | 1,420 | $ 1,420 | 1,420 | $ 1,488
30-89 Days DQ | 0 | 0 | 0 | 0
90 Days DQ | $ 0 | $ 0 | 0 | $ 0
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | Over $1,000 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.75% |  |  | 3.00%
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | Over $1,000 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.75% |  |  | 3.00%
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 3,145 |  | 3,698
Total Principal | $ 682,711 | $ 682,711 | 682,711 | $ 869,290
30-89 Days DQ | 20,303 | 20,303 | 20,303 | 31,687
90 Days DQ | $ 24,816 | 24,816 | 24,816 | 30,166
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 1.00% |  |  |
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.63% |  |  |
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $0 to $250 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 0 | 0 | 0 | 0
Loan Balance, maximum | 250 | $ 250 | 250 | $ 250
Number of Loans | loan |  | 2,324 |  | 2,623
Total Principal | 253,438 | $ 253,438 | 253,438 | $ 297,646
30-89 Days DQ | 7,436 | 7,436 | 7,436 | 9,158
90 Days DQ | $ 7,284 | 7,284 | 7,284 | $ 7,410
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $0 to $250 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 1.25% |  |  | 0.63%
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $0 to $250 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.16% |  |  | 5.60%
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $251 to $500 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 251 | 251 | 251 | $ 251
Loan Balance, maximum | 500 | $ 500 | 500 | $ 500
Number of Loans | loan |  | 541 |  | 694
Total Principal | 189,360 | $ 189,360 | 189,360 | $ 241,253
30-89 Days DQ | 9,082 | 9,082 | 9,082 | 9,177
90 Days DQ | $ 9,178 | 9,178 | 9,178 | $ 10,059
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $251 to $500 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 1.00% |  |  | 0.25%
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $251 to $500 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.63% |  |  | 5.75%
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $501 to $750 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 501 | 501 | 501 | $ 501
Loan Balance, maximum | 750 | $ 750 | 750 | $ 750
Number of Loans | loan |  | 151 |  | 203
Total Principal | 91,244 | $ 91,244 | 91,244 | $ 121,919
30-89 Days DQ | 1,995 | 1,995 | 1,995 | 5,812
90 Days DQ | $ 2,589 | 2,589 | 2,589 | $ 5,069
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $501 to $750 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 1.63% |  |  | 0.88%
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $501 to $750 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 4.00% |  |  | 3.89%
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $751 to $1,000 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 751 | 751 | 751 | $ 751
Loan Balance, maximum | 1,000 | $ 1,000 | 1,000 | $ 1,000
Number of Loans | loan |  | 76 |  | 100
Total Principal | 65,276 | $ 65,276 | 65,276 | $ 86,988
30-89 Days DQ | 1,790 | 1,790 | 1,790 | 2,750
90 Days DQ | $ 1,725 | 1,725 | 1,725 | $ 3,322
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $751 to $1,000 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 1.38% |  |  | 0.63%
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | $751 to $1,000 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.38% |  |  | 3.00%
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | Over $1,000 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum |  |  |  |
Loan Balance, maximum | 1,000 | $ 1,000 | 1,000 | $ 1,000
Number of Loans | loan |  | 53 |  | 78
Total Principal | 83,393 | $ 83,393 | 83,393 | $ 121,484
30-89 Days DQ | 0 | 0 | 0 | 4,790
90 Days DQ | $ 4,040 | $ 4,040 | $ 4,040 | $ 4,306
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | Over $1,000 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 1.00% |  |  | 0.25%
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | Over $1,000 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 4.63% |  |  | 3.75%
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans |  | 806 | 806 |
Total Principal | $ 604,747 | $ 604,747 | $ 604,747 |
30-89 Days DQ | 1,158 | 1,158 | 1,158 |
90 Days DQ | $ 0 | 0 | 0 |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.75% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.50% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $0 to $250 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 0 | 0 | 0 |
Loan Balance, maximum | 250 | 250 | $ 250 |
Number of Loans | Contract |  |  | 4 |
Total Principal | 641 | 641 | $ 641 |
30-89 Days DQ | 0 | 0 | 0 |
90 Days DQ | $ 0 | 0 | 0 |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $0 to $250 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.75% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $0 to $250 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 4.75% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $251 to $500 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 251 | 251 | 251 |
Loan Balance, maximum | 500 | 500 | $ 500 |
Number of Loans | Contract |  |  | 85 |
Total Principal | 38,900 | 38,900 | $ 38,900 |
30-89 Days DQ | 486 | 486 | 486 |
90 Days DQ | $ 0 | 0 | 0 |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $251 to $500 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.13% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $251 to $500 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.75% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $501 to $750 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 501 | 501 | 501 |
Loan Balance, maximum | 750 | 750 | $ 750 |
Number of Loans | Contract |  |  | 388 |
Total Principal | 240,538 | 240,538 | $ 240,538 |
30-89 Days DQ | 672 | 672 | 672 |
90 Days DQ | $ 0 | 0 | 0 |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $501 to $750 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.13% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $501 to $750 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.25% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $751 to $1,000 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 751 | 751 | 751 |
Loan Balance, maximum | 1,000 | 1,000 | $ 1,000 |
Number of Loans | Contract |  |  | 239 |
Total Principal | 210,235 | 210,235 | $ 210,235 |
30-89 Days DQ | 0 | 0 | 0 |
90 Days DQ | $ 0 | 0 | 0 |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $751 to $1,000 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.25% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | $751 to $1,000 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.50% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | Over $1,000 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, maximum | $ 1,000 | 1,000 | $ 1,000 |
Number of Loans | Contract |  |  | 90 |
Total Principal | 114,433 | 114,433 | $ 114,433 |
30-89 Days DQ | 0 | 0 | 0 |
90 Days DQ | $ 0 | $ 0 | 0 |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | Over $1,000 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.13% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | Over $1,000 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.88% |  |  |
Redwood | Residential loans, held-for-investment |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 3,292 |  | 3,068
Total Principal | $ 2,407,993 | $ 2,407,993 | 2,407,993 | $ 2,233,797
30-89 Days DQ | 10,978 | 10,978 | 10,978 | 4,299
90 Days DQ | 0 | $ 0 | 0 | $ 237
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 259 |  | 11
Total Principal | 203,461 | $ 203,461 | 203,461 | $ 10,257
30-89 Days DQ | 3,214 | 3,214 | 3,214 | 0
90 Days DQ | $ 0 | 0 | 0 | 0
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.63% |  |  |
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.00% |  |  |
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $0 to $250 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 0 | 0 | 0 |
Loan Balance, maximum | 250 | $ 250 | 250 |
Number of Loans | loan |  | 7 |  |
Total Principal | 1,589 | $ 1,589 | 1,589 |
30-89 Days DQ | 438 | 438 | 438 |
90 Days DQ | $ 0 | 0 | 0 |
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $0 to $250 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.50% |  |  |
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $0 to $250 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.88% |  |  |
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $251 to $500 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 251 | 251 | 251 | 251
Loan Balance, maximum | 500 | $ 500 | 500 | $ 500
Number of Loans | loan |  | 43 |  | 1
Total Principal | 16,703 | $ 16,703 | 16,703 | $ 264
30-89 Days DQ | 566 | 566 | 566 | 0
90 Days DQ | $ 0 | 0 | 0 | $ 0
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $251 to $500 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.63% |  |  | 3.63%
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $251 to $500 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 4.88% |  |  | 3.63%
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $501 to $750 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 501 | 501 | 501 | $ 501
Loan Balance, maximum | 750 | $ 750 | 750 | $ 750
Number of Loans | loan |  | 87 |  | 4
Total Principal | 55,709 | $ 55,709 | 55,709 | $ 2,722
30-89 Days DQ | 1,226 | 1,226 | 1,226 | 0
90 Days DQ | $ 0 | 0 | 0 | $ 0
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $501 to $750 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.88% |  |  | 2.88%
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $501 to $750 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.13% |  |  | 4.65%
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $751 to $1,000 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 751 | 751 | 751 | $ 751
Loan Balance, maximum | 1,000 | $ 1,000 | 1,000 | $ 1,000
Number of Loans | loan |  | 82 |  | 2
Total Principal | 71,819 | $ 71,819 | 71,819 | $ 1,726
30-89 Days DQ | 984 | 984 | 984 | 0
90 Days DQ | $ 0 | 0 | 0 | $ 0
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $751 to $1,000 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.88% |  |  | 3.50%
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | $751 to $1,000 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.00% |  |  | 4.00%
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | Over $1,000 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, maximum | $ 1,000 | $ 1,000 | 1,000 | $ 1,000
Number of Loans | loan |  | 40 |  | 4
Total Principal | 57,641 | $ 57,641 | 57,641 | $ 5,545
30-89 Days DQ | 0 | 0 | 0 | 0
90 Days DQ | $ 0 | $ 0 | 0 | $ 0
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | Over $1,000 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.00% |  |  | 3.00%
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | Over $1,000 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.00% |  |  | 4.20%
Redwood | Residential loans, held-for-investment | Fixed Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 3,033 |  | 3,057
Total Principal | $ 2,204,532 | $ 2,204,532 | 2,204,532 | $ 2,223,540
30-89 Days DQ | 7,764 | 7,764 | 7,764 | 4,299
90 Days DQ | $ 0 | 0 | 0 | 237
Redwood | Residential loans, held-for-investment | Fixed Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.75% |  |  |
Redwood | Residential loans, held-for-investment | Fixed Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.75% |  |  |
Redwood | Residential loans, held-for-investment | Fixed Loans | $0 to $250 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 0 | 0 | 0 | 0
Loan Balance, maximum | 250 | $ 250 | 250 | $ 250
Number of Loans | loan |  | 34 |  | 26
Total Principal | 6,758 | $ 6,758 | 6,758 | $ 4,643
30-89 Days DQ | 0 | 0 | 0 | 0
90 Days DQ | $ 0 | 0 | 0 | $ 237
Redwood | Residential loans, held-for-investment | Fixed Loans | $0 to $250 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.13% |  |  | 3.67%
Redwood | Residential loans, held-for-investment | Fixed Loans | $0 to $250 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.08% |  |  | 5.08%
Redwood | Residential loans, held-for-investment | Fixed Loans | $251 to $500 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 251 | 251 | 251 | $ 251
Loan Balance, maximum | 500 | $ 500 | 500 | $ 500
Number of Loans | loan |  | 681 |  | 633
Total Principal | 296,950 | $ 296,950 | 296,950 | $ 278,560
30-89 Days DQ | 1,380 | 1,380 | 1,380 | 264
90 Days DQ | $ 0 | 0 | 0 | $ 0
Redwood | Residential loans, held-for-investment | Fixed Loans | $251 to $500 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.80% |  |  | 2.80%
Redwood | Residential loans, held-for-investment | Fixed Loans | $251 to $500 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.13% |  |  | 5.13%
Redwood | Residential loans, held-for-investment | Fixed Loans | $501 to $750 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 501 | 501 | 501 | $ 501
Loan Balance, maximum | 750 | $ 750 | 750 | $ 750
Number of Loans | loan |  | 1,261 |  | 1,306
Total Principal | 777,103 | $ 777,103 | 777,103 | $ 807,714
30-89 Days DQ | 3,818 | 3,818 | 3,818 | 2,803
90 Days DQ | $ 0 | 0 | 0 | $ 0
Redwood | Residential loans, held-for-investment | Fixed Loans | $501 to $750 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.75% |  |  | 2.75%
Redwood | Residential loans, held-for-investment | Fixed Loans | $501 to $750 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.75% |  |  | 6.25%
Redwood | Residential loans, held-for-investment | Fixed Loans | $751 to $1,000 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum | $ 751 | 751 | 751 | $ 751
Loan Balance, maximum | 1,000 | $ 1,000 | 1,000 | $ 1,000
Number of Loans | loan |  | 649 |  | 690
Total Principal | 559,426 | $ 559,426 | 559,426 | $ 597,002
30-89 Days DQ | 2,566 | 2,566 | 2,566 | 0
90 Days DQ | $ 0 | 0 | 0 | $ 0
Redwood | Residential loans, held-for-investment | Fixed Loans | $751 to $1,000 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.75% |  |  | 2.75%
Redwood | Residential loans, held-for-investment | Fixed Loans | $751 to $1,000 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.00% |  |  | 5.63%
Redwood | Residential loans, held-for-investment | Fixed Loans | Over $1,000 |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Loan Balance, minimum |  |  |  |
Loan Balance, maximum | 1,000 | $ 1,000 | 1,000 | $ 1,000
Number of Loans | loan |  | 408 |  | 402
Total Principal | 564,295 | $ 564,295 | 564,295 | $ 535,621
30-89 Days DQ | 0 | 0 | 0 | 1,232
90 Days DQ | $ 0 | $ 0 | $ 0 | $ 0
Redwood | Residential loans, held-for-investment | Fixed Loans | Over $1,000 | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.80% |  |  | 2.80%
Redwood | Residential loans, held-for-investment | Fixed Loans | Over $1,000 | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate |  |  |  | 5.00%

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- Definition Amount of principal due on loans that have been delinquent thirty to eighty-nine days as of the balance sheet date. + References No definition available. + Details
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- Definition The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 + Details
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- Definition Amount of principal due on loans that have been delinquent, which may exclude loans having interest delinquent for three months or less, as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29.10(a)) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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