Deposits - Additional Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Type of Deposit [Line Items]
Brokered deposit placement fee	$ 2,326	$ 2,249	$ 7,548	$ 7,128
Deposits exceeding FDIC insurance limits	288,791		288,791		159,637
Accrued interest on deposits	15,736		15,736		13,097
Interest expense on deposit with subsidiary	65	64	182	255
Third Party Broker Fees Paid	5,533	0	5,533	0
Upromise
Type of Deposit [Line Items]
Deposit with subsidiary	289,344		289,344		293,040
Parent Company
Type of Deposit [Line Items]
Deposit with subsidiary	$ 273,341		$ 273,341		$ 0