Quarterly report pursuant to Section 13 or 15(d)

Fair Value, Option, Quantitative Disclosures - changes included in net income (Details)

v3.3.0.814
Fair Value, Option, Quantitative Disclosures - changes included in net income (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) $ 32,698 $ 5,973 $ 46,237 $ 43,983
Fair Value, Option, Credit Risk, Gains (Losses) on Assets 721 (299) 751 770
Available-for-sale Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 42 0 42 0
Loans Held-for-sale, Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 22,293 4,327 40,129 16,486
Fair Value, Option, Credit Risk, Gains (Losses) on Assets 721 (299) 751 770
Loans Held-for-investment, Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 40,847 2,602 31,820 56,861
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) (30,484) (956) (25,754) (29,364)
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) 18,847 9,116 46,864 21,110
Interest Income [Member] | Available-for-sale Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 89 0 89 0
Interest Income [Member] | Loans Held-for-sale, Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 9,479 5,268 21,268 12,553
Interest Income [Member] | Loans Held-for-investment, Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 24,841 9,526 64,908 25,180
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) (47) 0 (47) 0
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) (47) 0 (47) 0
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments [Member] | Loans Held-for-sale, 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, 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) (15,562) (5,678) (39,401) (16,623)
Gain (Loss) on Mortgage Loans [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 12,814 (941) 18,861 3,933
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, Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 12,814 (941) 18,861 3,933
Gain (Loss) on Mortgage Loans [Member] | Loans Held-for-investment, 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) 1,084 (2,202) (19,441) 18,940
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, 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, Mortgages [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) 16,006 (6,924) (33,088) 31,681
Other Income [Member] | Borrowings [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value, Option, Changes in Fair Value, Gain (Loss) $ (14,922) $ 4,722 $ 13,647 $ (12,741)