Quarterly report pursuant to Section 13 or 15(d)

Fair Value, Option, Quantitative Disclosures (Details)

v3.5.0.2
Fair Value, Option, Quantitative Disclosures (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) $ 18,312 $ 32,698 $ 60,050 $ 46,237
Fair Value, Option, Credit Risk, Gains (Losses) on Assets 145 721 209 751
Available-for-sale Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) (237) 42 (1,394) 42
Loans Held-for-sale, Residential Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 7,208 22,293 36,817 40,129
Fair Value, Option, Credit Risk, Gains (Losses) on Assets 145 721 209 751
Loans Held-for-investment, Residential Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 58,123 40,847 164,502 31,820
Fair Value, Option, Credit Risk, Gains (Losses) on Assets 0 0 0 0
Borrowings [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) (46,782) (30,484) (139,875) (25,754)
Fair Value, Option, Credit Risk, Gains (Losses) on Liabilities 0 0 0 0
Interest Income [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 14,451 18,847 49,457 46,864
Interest Income [Member] | Available-for-sale Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) (249) 89 (132) 89
Interest Income [Member] | Loans Held-for-sale, Residential Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 7,627 9,479 19,789 21,268
Interest Income [Member] | Loans Held-for-investment, Residential Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 33,495 24,841 100,765 64,908
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 12 (47) (1,262) (47)
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments [Member] | Available-for-sale Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 12 (47) (1,262) (47)
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments [Member] | Loans Held-for-sale, Residential Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 0 0 0 0
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments [Member] | Loans Held-for-investment, Residential Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 0 0 0 0
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments [Member] | Borrowings [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 0 0 0 0
Interest Expense [Member] | Borrowings [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) (26,422) (15,562) (70,965) (39,401)
Gain (Loss) on Mortgage Loans [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) (419) 12,814 17,028 18,861
Gain (Loss) on Mortgage Loans [Member] | Available-for-sale Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 0 0 0 0
Gain (Loss) on Mortgage Loans [Member] | Loans Held-for-sale, Residential Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) (419) 12,814 17,028 18,861
Gain (Loss) on Mortgage Loans [Member] | Loans Held-for-investment, Residential Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 0 0 0 0
Gain (Loss) on Mortgage Loans [Member] | Borrowings [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 0 0 0 0
Other Income [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 4,268 1,084 (5,173) (19,441)
Other Income [Member] | Available-for-sale Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 0 0 0 0
Other Income [Member] | Loans Held-for-sale, Residential Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 0 0 0 0
Other Income [Member] | Loans Held-for-investment, Residential Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 24,628 16,006 63,737 (33,088)
Other Income [Member] | Borrowings [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) $ (20,360) $ (14,922) $ (68,910) $ 13,647