Annual report pursuant to Section 13 and 15(d)

Fair Value, Measurement Inputs, Disclosure (Details)

v3.3.1.900
Fair Value, Measurement Inputs, Disclosure (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
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 62.20%      
Residential Mortgage Loans Held-for-sale Categorized as Level 2 Assets 94.20%      
Residential Mortgage Loans Held-for-sale Categorized as Level 3 Assets 5.80%      
Residential Mortgage Loans Held-for-investment Categorized as Level 2 Assets 100.00%      
Mortgage Servicing Rights Categorized as Level 3 Assets 100.00%      
Swaps and Other Derivatives 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 $ 21,998,381 $ 48,115,523 $ 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 $ 7,825,320 14,341,102    
Trading securities 0 1,997,656    
Mortgage servicing rights 493,688 452,006 514,402 $ 0
Loan Purchase Commitments [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative, Notional Amount 286,120 554,838 $ 12,063  
Fair Value, Measurements, Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Available-for-sale securities 7,825,320 14,341,102    
Trading securities   1,997,656    
Residential mortgage loans held-for-sale 811,431 535,712    
Residential mortgage loans held-for-investment in securitization trusts 3,173,727 1,744,746    
Mortgage servicing rights 493,688 452,006    
Derivative assets 271,509 380,791    
Assets, Fair Value Disclosure 12,575,675 19,452,013    
Collateralized borrowings in securitization trusts 2,000,110 1,209,663    
Derivative liabilities 7,285 90,233    
Financial and Nonfinancial Liabilities, Fair Value Disclosure 2,007,395 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    
Residential mortgage loans held-for-sale 0 0    
Residential mortgage loans held-for-investment in securitization trusts 0 0    
Mortgage servicing rights 0 0    
Derivative assets 1,074 10,350    
Assets, Fair Value Disclosure 1,074 2,008,006    
Collateralized borrowings in securitization trusts 0 0    
Derivative liabilities 1,324 17,687    
Financial and Nonfinancial Liabilities, Fair Value Disclosure 1,324 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 7,825,320 14,341,102    
Trading securities   0    
Residential mortgage loans held-for-sale 764,319 500,159    
Residential mortgage loans held-for-investment in securitization trusts 3,173,727 1,744,746    
Mortgage servicing rights 0 0    
Derivative assets 270,435 370,441    
Assets, Fair Value Disclosure 12,033,801 16,956,448    
Collateralized borrowings in securitization trusts 2,000,110 1,209,663    
Derivative liabilities 5,961 72,546    
Financial and Nonfinancial Liabilities, Fair Value Disclosure 2,006,071 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    
Residential mortgage loans held-for-sale 47,112 35,553    
Residential mortgage loans held-for-investment in securitization trusts 0 0    
Mortgage servicing rights 493,688 452,006    
Derivative assets 0 0    
Assets, Fair Value Disclosure 540,800 487,559    
Collateralized borrowings in securitization trusts 0 0    
Derivative liabilities 0 0    
Financial and Nonfinancial Liabilities, Fair Value Disclosure 0 0    
Derivative Financial Instruments, Liabilities [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative, Notional Amount 1,362,384 16,200,000    
Derivative, Fair Value, Net (7,285) (90,233)    
Derivative Financial Instruments, Liabilities [Member] | Loan Purchase Commitments [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative, Notional Amount 187,384 0    
Derivative, Fair Value, Net $ (427) $ 0