Premises and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

Premises and equipment, net of accumulated depreciation

(Dollars in thousands)	December 31, 2012			December 31, 2011
Land	$	25,027		25,022
Office buildings and construction in progress	153,340			145,999
Furniture, fixtures and equipment	63,467			62,002
Leasehold improvements	7,393			7,766
Accumulated depreciation	(90,238		)	(81,917	)
Net premises and equipment	$	158,989		158,872

Future Minimum Rental Commitments required under Operating and Capital Leases

(Dollars in thousands)	Capital Leases		Operating Leases	Total
Years ending December 31,
2013	$	238	2,317	2,555
2014	828		2,227	3,055
2015	195		2,043	2,238
2016	197		1,813	2,010
2017	200		1,506	1,706
Thereafter	749		4,136	4,885
Total minimum lease payments	2,407		14,042	16,449
Less: Amount representing interest	619
Present value of minimum lease payments	1,788
Less: Current portion of obligations under capital leases	98
Long-term portion of obligations under capital leases	$	1,690