Derivative Instruments and Hedging Activities - Narrative (Detail) (USD $) In Thousands, unless otherwise specified			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Not Designated as Hedging Instrument	Dec. 31, 2013 Cash Flow Hedging	Dec. 31, 2013 Interest Rate Swap InterestRateSwap	Dec. 31, 2012 Interest Rate Swap InterestRateSwap	Dec. 31, 2013 Interest Rate Swap Cash Flow Hedging	Dec. 31, 2012 Interest Rate Swap Cash Flow Hedging	Dec. 31, 2013 Interest Rate Swap Cash Flow Hedging Federal Home Loan Bank Advances	Dec. 31, 2013 Interest rate cap InterestRateCap	Dec. 31, 2012 Interest rate cap InterestRateCap	Dec. 31, 2013 Interest rate cap Cash Flow Hedging	Dec. 31, 2012 Interest rate cap Cash Flow Hedging
Derivative [Line Items]
Number of Interest Rate Derivatives Held				5	2				1	1
Notional amount of interest rate derivatives		$ 153,024		$ 56,000		$ 26,000	$ 26,000	$ 30,000	$ 13,000		$ 13,000	$ 13,000
Estimated amount to be transferred from OCI to earnings			1,368
Termination value of derivatives in a net liability position	2,736
Derivative collateral posted	$ 2,751