Income Taxes (Details) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Apr. 18, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Gross unrecognized tax benefits	$ 995,000	$ 995,000
Accrued interest related to unrecognized tax benefits	278,000	278,000
Deferred tax asset, net	259,993,000	259,993,000	276,800,000	16,627,000
Net operating loss and tax credit carryforwards	238,400,000	238,400,000
Net operating loss carryforwards, valuation allowance	3,300,000	3,300,000
Effective income tax rate on unrecognized tax benefits that would impact effective tax rate		0.30%
Recognized benefit in interest	5,000	1,000
Sterling Financial Corporation [Member]
Business Acquisition [Line Items]
Gross unrecognized tax benefits	446,000	446,000
Accrued interest related to unrecognized tax benefits	$ 84,000	$ 84,000