Loans and the Allowance for Loan Losses (Details 11) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Allowance for loan losses:
Beginning balance	$ 47,665		$ 44,347
Charge-offs	(1,297)		(1,505)
Recoveries	230		613
Net (charge-offs) recoveries	(1,067)		(892)
Provision for loan losses	1,415		3,459
Benefit attributable to FDIC loss-share agreements	(132)		(1,169)
Recoveries payable to FDIC	167		760
Provision for loan losses charged to operations	1,450		3,050
Ending balance	48,048		46,505
Period-End Amount Allocated to:
Individually evaluated for impairment	15,262		17,534
Collectively evaluated for impairment	32,786		28,971
Acquired with deteriorated credit quality	0		0
Ending balance	48,048		46,505
Commercial
Allowance for loan losses:
Beginning balance	3,090		3,307
Charge-offs	(119)		(234)
Recoveries	37		157
Net (charge-offs) recoveries	(82)		(77)
Provision for loan losses	183		(53)
Benefit attributable to FDIC loss-share agreements	(68)		(247)
Recoveries payable to FDIC	5		12
Provision for loan losses charged to operations	120		(288)
Ending balance	3,128		2,942
Period-End Amount Allocated to:
Individually evaluated for impairment	253		699
Collectively evaluated for impairment	2,875		2,243
Acquired with deteriorated credit quality	0		0
Ending balance	3,128		2,942
Real Estate - Construction
Allowance for loan losses:
Beginning balance	1,091		711
Charge-offs	0		0
Recoveries	5		16
Net (charge-offs) recoveries	5		16
Provision for loan losses	13		(52)
Benefit attributable to FDIC loss-share agreements	0		0
Recoveries payable to FDIC	0		1
Provision for loan losses charged to operations	13		(51)
Ending balance	1,109		676
Period-End Amount Allocated to:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	1,109		676
Acquired with deteriorated credit quality	0		0
Ending balance	1,109		676
Real Estate - 1-4 Family Mortgage
Allowance for loan losses:
Beginning balance	18,629		18,347
Charge-offs	(887)		(614)
Recoveries	151		339
Net (charge-offs) recoveries	(736)		(275)
Provision for loan losses	496		1,197
Benefit attributable to FDIC loss-share agreements	(69)		(261)
Recoveries payable to FDIC	158		729
Provision for loan losses charged to operations	585		1,665
Ending balance	18,478		19,737
Period-End Amount Allocated to:
Individually evaluated for impairment	7,285		8,641
Collectively evaluated for impairment	11,193		11,096
Acquired with deteriorated credit quality	0		0
Ending balance	18,478		19,737
Real estate – commercial mortgage
Allowance for loan losses:
Beginning balance	23,688		21,416
Charge-offs	(60)		(593)
Recoveries	30		91
Net (charge-offs) recoveries	(30)		(502)
Provision for loan losses	480		1,825
Benefit attributable to FDIC loss-share agreements	5		(661)
Recoveries payable to FDIC	4		18
Provision for loan losses charged to operations	489		1,182
Ending balance	24,147		22,096
Period-End Amount Allocated to:
Individually evaluated for impairment	7,724		8,194
Collectively evaluated for impairment	16,423		13,902
Acquired with deteriorated credit quality	0		0
Ending balance	24,147		22,096
Installment and Other
Allowance for loan losses:
Beginning balance	1,167	[1]	566	[1]
Charge-offs	(231)	[1]	(64)	[1]
Recoveries	7	[1]	10	[1]
Net (charge-offs) recoveries	(224)	[1]	(54)	[1]
Provision for loan losses	243	[1]	542	[1]
Benefit attributable to FDIC loss-share agreements	0	[1]	0	[1]
Recoveries payable to FDIC	0	[1]	0	[1]
Provision for loan losses charged to operations	243	[1]	542	[1]
Ending balance	1,186	[1]	1,054	[1]
Period-End Amount Allocated to:
Individually evaluated for impairment	0	[1]	0	[1]
Collectively evaluated for impairment	1,186	[1]	1,054	[1]
Acquired with deteriorated credit quality	0	[1]	0	[1]
Ending balance	$ 1,186	[1]	$ 1,054	[1]

[1] Includes lease financing receivables.The following table provides the recorded investment in loans, net of unearned income, based on the Company’s impairment methodology as of the dates presented: Commercial Real Estate -Construction Real Estate -1-4 FamilyMortgage Real Estate -CommercialMortgage Installmentand Other(1) TotalMarch 31, 2014 Individually evaluated for impairment$723 $— $21,831 $32,523 $— $55,077Collectively evaluated for impairment408,547 153,128 1,091,100 1,648,379 85,828 3,386,982Acquired with deteriorated credit quality30,846 2,772 98,329 287,256 6,166 425,369Ending balance$440,116 $155,900 $1,211,260 $1,968,158 $91,994 $3,867,428December 31, 2013 Individually evaluated for impairment$743 $— $25,374 $30,624 $183 $56,924Collectively evaluated for impairment432,736 158,551 1,080,297 1,618,758 84,822 3,375,164Acquired with deteriorated credit quality35,484 2,885 102,562 301,190 6,809 448,930Ending balance$468,963 $161,436 $1,208,233 $1,950,572 $91,814 $3,881,018 (1)Includes lease financing receivables.