Fair Value - Fair Value Measurement (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assumed Gain/(Loss) From Loan Sale	$ (2,603)
Interest Rate Movement Effect	(6,640)
Servicing Rights Value	3,610
Security Price Change	6,153
Total Fair Value Measurement Gain/(Loss)	520
Mortgage Banking [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Rate Lock Commitments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional or Principal Amount	243,084
Assumed Gain/(Loss) From Loan Sale	(1,603)
Interest Rate Movement Effect	(2,908)
Servicing Rights Value	1,814
Security Price Change
Total Fair Value Measurement Gain/(Loss)	(2,697)
Mortgage Banking [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Forward Sales Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional or Principal Amount	430,859
Assumed Gain/(Loss) From Loan Sale
Interest Rate Movement Effect
Servicing Rights Value
Security Price Change	6,153
Total Fair Value Measurement Gain/(Loss)	6,153
Mortgage Banking [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Mortgages Held for Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional or Principal Amount	213,577
Assumed Gain/(Loss) From Loan Sale	(1,000)
Interest Rate Movement Effect	(3,732)
Servicing Rights Value	1,796
Security Price Change
Total Fair Value Measurement Gain/(Loss)	$ (2,936)