Premises and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

A summary of premises and equipment at December 31 was as follows.



		2016						2015
	Estimated Useful Lives	Cost		Accumulated Depreciation		Net Book Value		Net Book Value
		($ in Thousands)
Land	—	$	57,471	$	—	$	57,471	$	52,104
Land improvements	3 – 15 years	12,572		5,929		6,643		6,661
Buildings	5 – 39 years	332,256		130,104		202,152		141,432
Computers	3 – 5 years	42,190		33,139		9,051		6,372
Furniture, fixtures and other equipment	3 – 15 years	162,253		119,704		42,549		49,794
Leasehold improvements	3 – 15 years	34,959		22,510		12,449		11,243
Total premises and equipment		$	641,701	$	311,386	$	330,315	$	267,606

Minimum annual rentals and commitments under noncancelable operating leases

The approximate minimum annual rentals and commitments under these noncancelable agreements and leases with remaining terms in excess of one year are as follows.



	($ in Thousands)
2017	$	9,711
2018	9,665
2019	9,115
2020	8,133
2021	7,336
Thereafter	20,940
Total	$	64,900

- Definition

Tabular disclosure of a lessee's leasing arrangements including: (1) the basis on which contingent rental payments are determined, (2) the existence and terms of renewal or purchase options and escalation clauses, (3) restrictions imposed by lease arrangements, such as those concerning dividends, additional debt, and further leasing, (4) rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. Disclosure may also include the specific period used to amortize material leasehold improvements made at the inception of the lease or during the lease term. Additionally, for operating leases having initial or remaining noncancelable lease terms in excess of one year: (a) future minimum rental payments required as of the date of the latest balance sheet presented, in the aggregate and for each of the five succeeding fiscal years, (b) the total of minimum rentals to be received in the future under noncancelable subleases as of the date of the latest balance sheet presented, and (c) for all operating leases, rental expense for each period for which an income statement is presented, with separate amounts for minimum rentals, contingent rentals, and sublease rentals. Rental payments under leases with terms of a month or less that were not renewed need not be included.

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