XML 62 R37.htm IDEA: XBRL DOCUMENT v3.5.0.2
Outstanding Debt Obligations (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Bonds and notes payable $ 26,399,686 $ 28,105,921
Discount on bonds and notes payable and debt issuance costs, net (465,568) (497,410)
Variable-rate bonds and notes [Member]    
Debt Instrument [Line Items]    
Bonds and notes payable 24,576,893 26,315,701
Bonds and notes based on indices [Member]    
Debt Instrument [Line Items]    
Bonds and notes payable $ 23,418,478 $ 25,155,336
Bonds and notes based on indices [Member] | Minimum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 0.30% 0.05%
Debt Instrument, Maturity Date Aug. 26, 2019 Aug. 26, 2019
Bonds and notes based on indices [Member] | Maximum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 6.90% 6.90%
Debt Instrument, Maturity Date Aug. 26, 2052 Aug. 26, 2052
Bonds and notes based on auction or remarketing [Member]    
Debt Instrument [Line Items]    
Bonds and notes payable $ 1,158,415 $ 1,160,365
Bonds and notes based on auction or remarketing [Member] | Minimum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 1.26% 0.88%
Debt Instrument, Maturity Date Mar. 22, 2032 Mar. 22, 2032
Bonds and notes based on auction or remarketing [Member] | Maximum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 2.21% 2.17%
Debt Instrument, Maturity Date Nov. 26, 2046 Nov. 26, 2046
Warehouse facilities [Member] | FFELP Warehouse Total [Member]    
Debt Instrument [Line Items]    
Bonds and notes payable $ 1,811,708 $ 1,855,907
Warehouse facilities [Member] | FFELP Warehouse Total [Member] | Minimum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 0.46% 0.27%
Debt Instrument, Maturity Date Jul. 09, 2018 Apr. 29, 2018
Warehouse facilities [Member] | FFELP Warehouse Total [Member] | Maximum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 0.80% 0.56%
Debt Instrument, Maturity Date Apr. 26, 2019 Dec. 14, 2018
Warehouse facilities [Member] | Private education loans [Member]    
Debt Instrument [Line Items]    
Bonds and notes payable $ 221,114 $ 181,184
Warehouse facilities [Member] | Private education loans [Member] | Minimum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 0.81% 0.57%
Debt Instrument, Maturity Date Apr. 28, 2017 Dec. 26, 2016
Warehouse facilities [Member] | Private education loans [Member] | Maximum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 0.81% 0.57%
Debt Instrument, Maturity Date Apr. 28, 2017 Dec. 26, 2016
Line of Credit [Member]    
Debt Instrument [Line Items]    
Bonds and notes payable $ 105,000 $ 100,000
Line of Credit [Member] | Minimum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 1.94% 1.79%
Debt Instrument, Maturity Date Oct. 30, 2020 Oct. 30, 2020
Line of Credit [Member] | Maximum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 1.95% 1.92%
Debt Instrument, Maturity Date Oct. 30, 2020 Oct. 30, 2020
Junior Subordinated Debt [Member]    
Debt Instrument [Line Items]    
Bonds and notes payable $ 57,184 $ 57,184
Junior Subordinated Debt [Member] | Minimum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 4.01% 3.99%
Debt Instrument, Maturity Date Sep. 15, 2061 Sep. 15, 2061
Junior Subordinated Debt [Member] | Maximum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 4.01% 3.99%
Debt Instrument, Maturity Date Sep. 15, 2061 Sep. 15, 2061
Other borrowings [Member]    
Debt Instrument [Line Items]    
Bonds and notes payable $ 93,355 $ 93,355
Other borrowings [Member] | Minimum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 1.97% 1.93%
Debt Instrument, Maturity Date Oct. 31, 2016 Oct. 31, 2016
Other borrowings [Member] | Maximum [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 3.38% 3.38%
Debt Instrument, Maturity Date Dec. 15, 2045 Dec. 25, 2045
Bonds and notes payable, gross [Member]    
Debt Instrument [Line Items]    
Bonds and notes payable $ 26,865,254 $ 28,603,331