Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Additional Cash Flow Information

Additional cash flow information was as follows:

	Year Ended December 31,
	2014		2013		2012
Cash paid for interest	$	14,705	$	22,449	$	29,378
Cash paid for income tax	62,976		49,514		58,950
Significant non-cash transactions:
Transfer of securities from available for sale to held to maturity	—		—		2,266,195
Unsettled purchases of securities	—		16,241		90,073
Loans foreclosed and transferred to other real estate owned and foreclosed assets	4,363		6,870		7,817
Premises and equipment transferred to other real estate owned and foreclosed assets	1,740		—		—
Loans to facilitate the sale of other real estate owned	102		678		—
Deferred gain on sale of building and parking garage	—		768		—