Annual report pursuant to Section 13 and 15(d)

Fair Value, Option, Quantitative Disclosures (Details)

v3.3.1.900
Fair Value, Option, Quantitative Disclosures (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) $ 56,952 $ 59,957 $ 38,684
Fair Value, Option, Credit Risk, Gains (Losses) on Assets (6,365) 1,295 6,677
Available-for-sale Securities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) 56 0 0
Equity Securities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss)     7,843
Fair Value, Option, Credit Risk, Gains (Losses) on Assets     0
Loans Held-for-Sale, Residential Mortgages [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) 44,898 28,657 8,354
Fair Value, Option, Credit Risk, Gains (Losses) on Assets (6,365) 1,295 6,677
Loans Held-for-Investment, Residential Mortgages [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) 43,300 82,345 (3,690)
Fair Value, Option, Credit Risk, Gains (Losses) on Assets 0 0 0
Borrowings [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) (31,302) (51,045) 26,177
Fair Value, Option, Credit Risk, Gains (Losses) on Liabilities 0 0 0
Interest Income [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) 67,614 30,549 30,468
Interest Income [Member] | Available-for-sale Securities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) 124 0 0
Interest Income [Member] | Equity Securities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss)     0
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) 28,966 16,089 22,185
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) 95,740 41,220 19,220
Interest Expense [Member] | Borrowings [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) (57,216) (26,760) (10,937)
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) (68) 0 7,843
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) (68) 0 0
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments [Member] | Equity Securities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss)     7,843
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
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
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
Gain (Loss) on Residential Mortgage Loans Held-for-Sale [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) 15,932 12,568 (13,831)
Gain (Loss) on Residential Mortgage Loans Held-for-Sale [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
Gain (Loss) on Residential Mortgage Loans Held-for-Sale [Member] | Equity Securities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss)     0
Gain (Loss) on Residential Mortgage Loans Held-for-Sale [Member] | Loans Held-for-Sale, Residential Mortgages [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) 15,932 12,568 (13,831)
Gain (Loss) on Residential Mortgage Loans Held-for-Sale [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
Gain (Loss) on Residential Mortgage Loans Held-for-Sale [Member] | Borrowings [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) 0 0 0
Other Income [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) (26,526) 16,840 14,204
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
Other Income [Member] | Equity Securities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss)     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
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) (52,440) 41,125 (22,910)
Other Income [Member] | Borrowings [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Fair Value, Option, Changes in Fair Value, Gain (Loss) $ 25,914 $ (24,285) $ 37,114