Quarterly report pursuant to Section 13 or 15(d)

Fair Value, Measurement Inputs, Disclosure (Details)

v3.3.0.814
Fair Value, Measurement Inputs, Disclosure (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Jun. 30, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Available-for-sale Securities Categorized as Level 2 Assets 100.00%          
Assets Reported at Fair Value, Available-for-sale Securities 71.80%          
Mortgage Loans Held-for-sale Categorized as Level 2 Assets 93.10%          
Mortgage Loans Held-for-sale Categorized as Level 3 Assets 6.90%          
Mortgage Loans Held-for-investment Categorized as Level 2 Assets 100.00%          
Mortgage Servicing Rights Categorized as Level 3 Assets 100.00%          
Interest Rate Swaps, Swaptions and Credit Default Swaps Categorized as Level 2 Assets (Liabilities) 100.00%          
Inverse Interest-only Securities Categorized as Level 2 Assets 100.00%          
Agency To-be-Announced Securities Categorized as Level 1 Assets (Liabilities) 100.00%          
Derivative, Notional Amount $ 28,317,580 $ 27,401,335 $ 48,115,523 $ 57,015,981 $ 43,379,217 $ 37,366,610
Forward Purchase Commitments Categorized as Level 2 Assets (Liabilities) 100.00%          
Collateralized Borrowings in Securitization Trust Categorized as Level 2 Liabilities 100.00%          
Available-for-sale Securities $ 11,433,195   14,341,102      
Trading Securities 0   1,997,656      
Mortgage servicing rights 447,345 437,576 452,006 498,466 500,490 514,402
Fair Value, Measurements, Recurring [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Available-for-sale Securities 11,433,195   14,341,102      
Trading Securities     1,997,656      
Mortgage loans held-for-sale 768,008   535,712      
Mortgage loans held-for-investment in securitization trust 2,978,586   1,744,746      
Derivative assets 296,731   380,791      
Mortgage servicing rights 447,345   452,006      
Assets, Fair Value Disclosure 15,923,865   19,452,013      
Collateralized borrowings in securitization trust 1,990,769   1,209,663      
Derivative liabilities 81,473   90,233      
Liabilities, Fair Value Disclosure 2,072,242   1,299,896      
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Available-for-sale Securities 0   0      
Trading Securities     1,997,656      
Mortgage loans held-for-sale 0   0      
Mortgage loans held-for-investment in securitization trust 0   0      
Derivative assets 9,267   10,350      
Mortgage servicing rights 0   0      
Assets, Fair Value Disclosure 9,267   2,008,006      
Collateralized borrowings in securitization trust 0   0      
Derivative liabilities 3,820   17,687      
Liabilities, Fair Value Disclosure 3,820   17,687      
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Available-for-sale Securities 11,433,195   14,341,102      
Trading Securities     0      
Mortgage loans held-for-sale 714,654   500,159      
Mortgage loans held-for-investment in securitization trust 2,978,586   1,744,746      
Derivative assets 287,464   370,441      
Mortgage servicing rights 0   0      
Assets, Fair Value Disclosure 15,413,899   16,956,448      
Collateralized borrowings in securitization trust 1,990,769   1,209,663      
Derivative liabilities 77,653   72,546      
Liabilities, Fair Value Disclosure 2,068,422   1,282,209      
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Available-for-sale Securities 0   0      
Trading Securities     0      
Mortgage loans held-for-sale 53,354   35,553      
Mortgage loans held-for-investment in securitization trust 0   0      
Derivative assets 0   0      
Mortgage servicing rights 447,345   452,006      
Assets, Fair Value Disclosure 500,699   487,559      
Collateralized borrowings in securitization trust 0   0      
Derivative liabilities 0   0      
Liabilities, Fair Value Disclosure 0   0      
Forward Purchase Commitments [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative, Notional Amount 501,192 $ 626,660 554,838 $ 326,376 $ 647,941 $ 12,063
Derivative Financial Instruments, Liabilities [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative, Notional Amount 10,517,605   16,200,000      
Derivative, Fair Value, Net (81,473)   (90,233)      
Derivative Financial Instruments, Liabilities [Member] | Forward Purchase Commitments [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative, Notional Amount 83,118   0      
Derivative, Fair Value, Net $ (58)   $ 0