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GOODWILL AND OTHER INTANGIBLE ASSETS (Details) (USD $) | 3 Months Ended |  |  |  | 3 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | Jan. 17, 2014 MetroCorp | Mar. 31, 2014 Premiums on acquired deposits | Mar. 31, 2013 Premiums on acquired deposits | Dec. 31, 2013 Premiums on acquired deposits
GOODWILL AND OTHER INTANGIBLE ASSETS |  |  |  |  |  |  |  |
Goodwill | $ 458,467,000 | $ 337,438,000 | $ 337,438,000 |  | $ 121,000,000 |  |  |
Market capitalization | 5,230,000,000 |  |  |  |  |  |  |
Total stockholders' equity | 2,624,220,000 | 2,343,119,000 | 2,364,225,000 | 2,382,122,000 |  |  |  |
Premiums on Acquired Deposits |  |  |  |  |  |  |  |
Gross carrying amount of premiums on acquired deposits |  |  |  |  |  | 108,800,000 |  | 100,200,000
Intangible recorded due to the acquisition of MetroCorp |  |  |  |  | 8,600,000 |  |  |
Accumulated amortization for premiums on acquired deposits |  |  |  |  |  | 55,800,000 |  | 53,300,000
Amortization expense of premiums on acquired deposits | 2,500,000 | 2,409,000 |  |  |  | 2,500,000 | 2,400,000 |
Estimated Future Amortization Expense of Premiums on Acquired Deposits |  |  |  |  |  |  |  |
Remainder of the year | 7,704,000 |  |  |  |  |  |  |
Year Ending December 31, 2015 | 9,234,000 |  |  |  |  |  |  |
Year Ending December 31, 2016 | 8,086,000 |  |  |  |  |  |  |
Year Ending December 31, 2017 | 6,935,000 |  |  |  |  |  |  |
Year Ending December 31, 2018 | 5,883,000 |  |  |  |  |  |  |
Thereafter | 15,171,000 |  |  |  |  |  |  |
Total | $ 53,013,000 |  |  |  |  |  |  |

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