Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
ASSETS
CASH AND DUE FROM BANKS	$ 166,237	$ 183,084	$ 138,087
FEDERAL FUNDS SOLD	3,110	3,430	16,025
INTEREST-BEARING DEPOSITS IN BANKS	68,331	25,498	6,624
Total cash and cash equivalents	237,678	212,012	160,736
INTEREST-BEARING TIME DEPOSITS IN BANKS	24,188	31,917	39,350
SECURITIES AVAILABLE-FOR-SALE, at fair value	2,173,828	2,057,723	1,974,604
SECURITIES HELD-TO-MATURITY (fair value of $576, $900 and $694 at June 30, 2014 and 2013, and December 31, 2013, respectively)	568	684	886
LOANS
Held for investment	2,773,074	2,684,285	2,560,890
Less-allowance for loan losses	(35,892)	(33,900)	(34,099)
Net loans held for investment	2,737,182	2,650,385	2,526,791
Held for sale	13,570	5,163	17,993
Net loans	2,750,752	2,655,548	2,544,784
BANK PREMISES AND EQUIPMENT, net	96,619	95,505	94,808
INTANGIBLE ASSETS	97,429	97,485	97,248
OTHER ASSETS	65,294	71,334	70,189
Total assets	5,446,356	5,222,208	4,982,605
LIABILITIES AND SHAREHOLDERS' EQUITY
NONINTEREST-BEARING DEPOSITS	1,445,947	1,362,184	1,305,049
INTEREST-BEARING DEPOSITS	2,872,511	2,772,891	2,612,540
Total deposits	4,318,458	4,135,075	3,917,589
DIVIDENDS PAYABLE	8,968	8,318	8,311
SHORT-TERM BORROWINGS	434,583	463,888	431,575
OTHER LIABILITIES	44,311	27,280	49,266
Total liabilities	4,806,320	4,634,561	4,406,741
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY
Common stock-$0.01 par value, authorized 80,000,000 shares; 64,053,010, 31,967,424, and 31,992,497 shares issued at June 30, 2014 and 2013 and December 31, 2013, respectively	640	320	320
Capital surplus	304,308	302,991	301,963
Retained earnings	299,902	273,972	249,804
Treasury stock (shares at cost: 534,905, 269,579, and 269,467 at June 30, 2014 and 2013 and December 31, 2013, respectively)	(5,723)	(5,490)	(5,259)
Deferred compensation	5,723	5,490	5,259
Accumulated other comprehensive earnings	35,186	10,364	23,777
Total shareholders' equity	640,036	587,647	575,864
Total liabilities and shareholders' equity	$ 5,446,356	$ 5,222,208	$ 4,982,605