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INVESTMENTS IN QUALIFIED AFFORDABLE HOUSING PARTNERSHIPS, TAX CREDIT AND OTHER INVESTMENTS, NET (Details 2) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Consolidated Balance Sheets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in qualified affordable housing partnerships, net | [1] | $ 193,978 |  |  |  | $ 178,962 |  |  |  | $ 193,978 |  | $ 178,962 |  |  |
Deferred Tax Assets, Net |  | 135,871 |  |  |  | 389,601 |  |  |  | 135,871 |  | 389,601 |  |  |
Retained earnings | [1] | 1,872,594 |  |  |  | 1,604,141 |  |  |  | 1,872,594 |  | 1,604,141 |  |  |
Consolidated Statements of Income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noninterest expense — amortization of tax credit and other investments | [1] |  |  |  |  |  |  |  |  | 36,120 |  | 44,092 |  | $ 5,973 |
Income before income taxes |  | 148,485 | $ 138,989 | $ 144,421 | $ 146,826 | 122,595 | $ 85,299 | $ 122,966 | $ 116,163 | 578,721 | [1] | 447,023 | [1] | 447,146 | [1]
Income taxes expense |  | 56,680 | 44,892 | 45,673 | 46,799 | 27,093 | (6,601) | 38,661 | 41,992 | 194,044 | [1] | 101,145 | [1] | 153,822 | [1]
Net income |  | $ 91,805 | $ 94,097 | $ 98,748 | $ 100,027 | $ 95,502 | $ 91,900 | $ 84,305 | $ 74,171 | $ 384,677 | [1] | $ 345,878 | [1] | $ 293,324 | [1]
EARNINGS PER SHARE AVAILABLE TO COMMON STOCKHOLDERS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BASIC (in dollars per share) |  | $ 0.64 | $ 0.65 | $ 0.69 | $ 0.70 | $ 0.67 | $ 0.64 | $ 0.59 | $ 0.52 | $ 2.67 | [1] | $ 2.42 | [1] | $ 2.10 | [1]
DILUTED (in dollars per share) |  | $ 0.63 | $ 0.65 | $ 0.68 | $ 0.69 | $ 0.66 | $ 0.64 | $ 0.59 | $ 0.52 | $ 2.66 | [1] | $ 2.41 | [1] | $ 2.09 | [1]
As Previously Reported |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated Balance Sheets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in qualified affordable housing partnerships, net |  |  |  |  |  | $ 178,652 |  |  |  |  |  | $ 178,652 |  |  |
Deferred Tax Assets, Net |  |  |  |  |  | 384,367 |  |  |  |  |  | 384,367 |  |  |
Retained earnings |  |  |  |  |  | $ 1,598,598 |  |  |  |  |  | 1,598,598 |  |  |
Consolidated Statements of Income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noninterest expense — amortization of tax credit and other investments |  |  |  |  |  |  |  |  |  |  |  | 75,660 |  | $ 27,268 |
Income before income taxes |  |  |  |  |  |  |  |  |  |  |  | 415,455 |  | 425,850 |
Income taxes expense |  |  |  |  |  |  |  |  |  |  |  | 72,972 |  | 130,805 |
Net income |  |  |  |  |  |  |  |  |  |  |  | $ 342,483 |  | $ 295,045 |
EARNINGS PER SHARE AVAILABLE TO COMMON STOCKHOLDERS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BASIC (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 2.39 |  | $ 2.11 |
DILUTED (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 2.38 |  | $ 2.10 |
[1] | Prior period was restated to reflect the retrospective application of adopting the new accounting guidance related to the Company’s investments in qualified affordable housing projects Accounting Standards Update (“ASU”) 2014-01. Please see Note 9 — Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net to the Consolidated Financial Statements for additional information.

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