Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT - Narrative (Details)

v3.3.1.900
LONG-TERM DEBT - Narrative (Details)
 1 Months Ended
Mar. 31, 2015
USD ($)
securitization
Nov. 30, 2015
USD ($)
Feb. 28, 2015
USD ($)
Apr. 30, 2014
USD ($)
Feb. 28, 2014
USD ($)
Dec. 31, 2015
USD ($)
Aug. 31, 2015
USD ($)
Jun. 30, 2015
USD ($)
Dec. 31, 2014
USD ($)
Debt Instrument [Line Items]                  
Long-term debt           $ 7,067,614,000     $ 4,335,962,000
Senior Notes | Senior Notes Due April 1, 2019                  
Debt Instrument [Line Items]                  
Debt face amount         $ 500,000,000.0        
Debt percent of value issued         99.842%        
Other borrowings                  
Debt Instrument [Line Items]                  
Long-term debt           $ 452,448,000     $ 65,141,000
Other borrowings | HTF Non-recourse Debt, Effective Rate 3.20%                  
Debt Instrument [Line Items]                  
Effective rate 3.20%                
Long-term debt $ 293,400,000                
Other borrowings | HTF Non-recourse Debt, Effective Rate 1.70%                  
Debt Instrument [Line Items]                  
Effective rate 1.70%                
Long-term debt $ 255,000,000                
Debt assumed number of securitizations | securitization 2                
Bank | Senior Notes                  
Debt Instrument [Line Items]                  
Debt percent of value issued     99.87%            
Bank | Senior Notes | Senior Notes Due November 6, 2018                  
Debt Instrument [Line Items]                  
Debt face amount   $ 850,000,000.0              
Debt percent of value issued   99.88%              
Stated rate   2.20%              
Bank | Senior Notes | Senior Notes Due November 6, 2018 | One month prior to maturity date                  
Debt Instrument [Line Items]                  
Redemption price percentage   100.00%              
Bank | Senior Notes | Senior Notes Due August 20, 2020                  
Debt Instrument [Line Items]                  
Debt face amount             $ 500,000,000.0    
Debt percent of value issued             99.58%    
Stated rate             2.88%    
Bank | Senior Notes | Senior Notes Due June 30, 2018                  
Debt Instrument [Line Items]                  
Debt face amount               $ 750,000,000.0  
Debt percent of value issued               99.71%  
Stated rate               2.00%  
Bank | Senior Notes | Senior Notes Due February 2018                  
Debt Instrument [Line Items]                  
Debt face amount     $ 500,000,000.0            
Debt percent of value issued     99.86%            
Effective rate     1.70%            
Bank | Senior Notes | Senior Notes Due February 2018 | One month prior to maturity date                  
Debt Instrument [Line Items]                  
Redemption price percentage     100.00%            
Bank | Senior Notes | Senior Notes Due April 1, 2020                  
Debt Instrument [Line Items]                  
Debt face amount     $ 500,000,000.0            
Stated rate     2.40%            
Redemption price percentage     100.00%            
Bank | Senior Notes | Senior Notes Due April 24, 2017, Fixed Rate                  
Debt Instrument [Line Items]                  
Debt face amount       $ 500,000,000.0          
Debt percent of value issued       99.842%          
Effective rate       1.375%          
Bank | Senior Notes | Senior Notes Due April 24, 2017, Fixed Rate | One month prior to maturity date                  
Debt Instrument [Line Items]                  
Redemption price percentage       100.00%          
Bank | Senior Notes | Senior Notes Due April 24, 2017, Variable Rate                  
Debt Instrument [Line Items]                  
Debt face amount       $ 250,000,000.0          
Debt percent of value issued       100.00%          
Bank | Senior Notes | Senior Notes Due April 24, 2017, Variable Rate | One month prior to maturity date                  
Debt Instrument [Line Items]                  
Redemption price percentage       100.00%          
Bank | Senior Notes | Senior Notes Due April 24, 2017, Variable Rate | Three-month LIBOR                  
Debt Instrument [Line Items]                  
Basis spread on variable rate       0.425%          
Bank | Senior Notes | Senior Notes Due April 1, 2019                  
Debt Instrument [Line Items]                  
Stated rate         2.20%        
Redemption price percentage         100.00%