Cash Flow Information - Summary of Cash Flow Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement Of Cash Flows [Abstract]
Interest paid on deposits and other borrowings	$ 10,576	$ 13,489
Income taxes paid
Transfers of loans to other real estate owned	4,849	3,271
Financing of other real estate owned sold		$ 113