Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table shows goodwill allocated by business segment.

(In thousands)	Commercial		Retail		Wealth		Total
Balance at December 31, 2014	$	527,406	$	193,961	$	20,373	$	741,740
Balance at December 31, 2015	$	527,406	$	193,961	$	20,373	$	741,740

Schedule of Finite-Lived Intangible Assets

The following tables show the gross carrying amount, accumulated amortization, and net carrying amount of these intangible assets.

	December 31, 2015
	Gross Carrying		Accumulated			Net Carrying
(In thousands)	Amount		Amortization			Amount
Core deposit intangibles (1)	$	82,323	$	(28,304	)	$	54,019
Lease intangible	238		(212		)	26
Trust relationships (2)	14,000		(7,417		)	6,583
Total intangibles	$	96,561	$	(35,933	)	$	60,628
	December 31, 2014
	Gross Carrying		Accumulated			Net Carrying
(In thousands)	Amount		Amortization			Amount
Core deposit intangibles (1)	$	82,323	$	(19,996	)	$	62,327
Lease intangible	238		(176		)	62
Trust relationships (2)	14,000		(5,369		)	8,631
Total intangibles	$	96,561	$	(25,541	)	$	71,020

(1) Core deposit intangibles are amortized on an accelerated basis over their estimated useful lives, which range from 10-15 years.

(2) Trust relationship intangibles are amortized on an accelerated basis on their estimated useful lives of 12 years.

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table shows the estimated future amortization expense for intangible assets subject to amortization as of December 31, 2015.

(In thousands)
For the years ended:
December 31, 2016	$	9,209
December 31, 2017	8,161
December 31, 2018	7,273
December 31, 2019	6,500
December 31, 2020	5,214
Total estimated future amortization	$	36,357