Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases

The Corporation is obligated under various noncancelable operating leases on branch offices. Minimum future rental payments under noncancelable operating leases at December 31, 2015 are as follows:

(In thousands)
Years Ended December 31,	Lease Commitments
2016	$	11,942
2017	11,288
2018	9,842
2019	7,870
2020	6,605
2021-2034	18,521
Total minimum future rental payments	$	66,068

Schedule of commitments to extend credit

This amount represents the Corporation’s maximum exposure to loss if the customer were to draw upon the full amount of the commitment and subsequently default on payment for the total amount of the then outstanding loan.

		At December 31,
(In thousands)		2015		2014
Loan Commitments
	Commercial	$	3,992,089	$	3,748,690
	Consumer	2,393,058		2,387,623
	Total loan commitments	$	6,385,147	$	6,136,313

Schedule of Guarantor Obligations

The Corporation is a guarantor in certain agreements with third parties. The Corporation's maximum credit risk associated with these instruments is represented by the contractual amounts indicated in the following table.

		At December 31,
(In thousands)		2015		2014
Financial guarantees
	Standby letters of credit	$	254,703	$	242,390
	Loans sold with recourse	12,902		45,071
	Total financial guarantees	$	267,605	$	287,461

Changes in Repurchase Reserve

Changes in the amount of the repurchase reserve for the years ended December 31, 2015, and 2014, are as follows:

	Year Ended December 31, 2015
(In thousands)	Reserve on residential mortgage loans			Reserve on manufactured housing loans			Total repurchased reserve
Balance at beginning of period	$	7,250		$	1,124		$	8,374
Net increase/(decrease) to reserve	(3,638		)	(1,130		)	(4,768		)
Net realized gains/(losses)	(887		)	6			(881		)
Balance at end of period	$	2,725		$	—		$	2,725

	Year Ended December 31, 2014
(In thousands)	Reserve on residential mortgage loans			Reserve on manufactured housing loans		Total repurchased reserve
Balance at beginning of period	$	8,737		$	1,114	$	9,851
Net increase/(decrease) to reserve	(4,564		)	10		(4,554		)
Net realized gains/(losses)	3,077			—		3,077
Balance at end of period	$	7,250		$	1,124	$	8,374