Premises and Equipment

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

Premises and Equipment

Premises and Equipment

See Note 1 for the Corporation’s accounting policy for premises and equipment. A summary of premises and equipment at December 31 is as follows:

				2020				2019
($ in Thousands)	Estimated Useful Lives	Cost		Accumulated Depreciation		Net Book Value		Net Book Value
Land	—	$	70,431	$	—	$	70,431	$	69,649
Land improvements	3 – 15 years	18,488		8,716		9,771		9,355
Buildings and improvements	5 – 39 years	390,298		168,136		222,162		230,358
Computers	3 – 5 years	52,846		38,128		14,718		13,242
Furniture, fixtures and other equipment	3 – 15 years	174,362		116,304		58,058		53,342
Operating leases	—	46,632		14,638		31,994		45,381
Leasehold improvements	3 – 15 years	33,706		21,925		11,781		13,958
Total premises and equipment		$	786,761	$	367,847	$	418,914	$	435,284

Depreciation and amortization of premises and equipment totaled $34 million for 2020, 2019, and 2018.