Restructuring Charges (Narrative) (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2014	Jun. 30, 2014 branches	Mar. 31, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 809,000		$ 8,600,000	$ 687,000	$ 17,101,000	$ 7,295,000
Number of branches identified for future closing		13
Asset impairment charges	36,000	7,400,000		0	7,374,000	0
Accrued liabilities	5,100,000				5,100,000
Severance Cost [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			8,000,000
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Additional restructuring charges to be incurred in the fourth quarter	$ 6,000,000				$ 6,000,000