Business Combinations (Details) (USD $) Share data in Millions, unless otherwise specified	6 Months Ended		0 Months Ended		0 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	May 30, 2014 Team Capital Bank [Member]	May 30, 2014 Team Capital Bank [Member]	May 30, 2014 Team Capital Bank [Member] Common Stock [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Assets, Including Goodwill				$ 963,974,000
Loans				631,390,000
Deposits				769,936,000
Total consideration paid			115,100,000
Cash paid			31,600,000
Shares issued as consideration (in shares)					4.9
Equity interests issued as consideration	$ 83,517	$ 0	$ 83,500,000