Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Effective Income Tax Rate Reconciliation (Details)

v3.6.0.2
INCOME TAXES - Effective Income Tax Rate Reconciliation (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]                      
Provision for income taxes computed at the statutory rate                 $ 321,925 $ 319,762 $ 298,545
Increases (decreases):                      
Tax-exempt income                 (27,453) (20,839) (17,971)
Tax-exempt bank owned life insurance income                 (20,149) (18,340) (19,967)
General business credits                 (64,151) (47,894) (46,047)
State deferred tax asset valuation allowance adjustment, net                 0 0 (7,430)
Capital loss                 (45,500) (46,288) (26,948)
Affordable housing investment amortization, net of tax benefits                 36,848 31,741 33,752
State income taxes, net                 4,936 4,960 2,873
Other                 1,485 (2,454) 3,786
Provision for income taxes $ 73,952 $ 24,749 $ 54,283 $ 54,957 $ 55,583 $ 47,002 $ 64,057 $ 54,006 $ 207,941 $ 220,648 $ 220,593