Goodwill and other intangible assets (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

Total amortizing intangible assets were comprised of the following:

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	(In thousands)
December 31, 2014
Core deposit	$	755,794	$	730,188	$	25,606
Other		177,268		167,847		9,421
Total	$	933,062	$	898,035	$	35,027
December 31, 2013
Core deposit	$	755,794	$	705,518	$	50,276
Other		177,268		158,693		18,575
Total	$	933,062	$	864,211	$	68,851

Estimated Amortization Expense in Future Years

Estimated amortization expense in future years for such intangible assets is as follows:

	(In thousands)
Year ending December 31:
2015	$	20,938
2016		10,052
2017		3,303
2018		734
	$	35,027

Summary of Goodwill Assigned to Reportable Segments for Purposes of Testing for Impairment

A summary of goodwill assigned to each of the Company’s reportable segments as of December 31, 2014 and 2013 for purposes of testing for impairment is as follows.

	(In thousands)
Business Banking	$	748,907
Commercial Banking		907,524
Commercial Real Estate		349,197
Discretionary Portfolio		—
Residential Mortgage Banking		—
Retail Banking		1,144,404
All Other		374,593
Total	$	3,524,625