Premises, Equipment And Leases (Tables)

12 Months Ended

Dec. 31, 2014

Property Plant And Equipment [Abstract]

Summary of Premises And Equipment

Premises and equipment on December 31 are summarized below:
(Dollars in thousands)			2014		2013
Land		$	76,667	$	75,593
Buildings			360,133		354,070
Leasehold improvements			32,404		38,303
Furniture, fixtures, and equipment			201,443		202,102
	Premises and equipment, at cost		670,647		670,068
Less accumulated depreciation and amortization			367,651		364,824
Premises and equipment, net		$	302,996	$	305,244

Minimum Future Lease Payments For Noncancelable Operating Leases On Premises And Equipment

Minimum future lease payments for noncancelable operating leases, primarily on premises, on December 31, 2014 are shown below:
(Dollars in thousands)
2015	$	15,585
2016		13,835
2017		12,629
2018		10,917
2019		8,790
2020 and after		27,112
Total minimum lease payments	$	88,868

Payments required under capital leases are not material.

Rent Expense Incurred Under All Operating Lease Obligations

Rent expense incurred under all operating lease obligations for the years ended December 31 is as follows:
(Dollars in thousands)		2014		2013		2012
Rent expense, gross	$	20,123	$	19,445	$	23,109
Sublease income		(213)		(1,974)		(3,365)
Rent expense, net	$	19,910	$	17,471	$	19,744