Contingencies and Guarantees (Tables)

6 Months Ended

Jun. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Schedule of Commitments to Extend Credit

The Corporation's credit risk associated with these instruments is represented by the contractual amounts indicated in the following table.

Unused commitments to extend credit
(In thousands)		June 30, 2016		December 31, 2015		June 30, 2015
	Commercial	$	3,505,383	$	3,992,089	$	3,746,824
	Consumer	2,508,315		2,393,058		2,397,353
	Total unused commitments to extend credit	$	6,013,698	$	6,385,147	$	6,144,177

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.

Financial guarantees
(In thousands)		June 30, 2016		December 31, 2015		June 30, 2015
	Standby letters of credit	$	220,913	$	254,703	$	255,418
	Loans sold with recourse	11,543		12,902		28,891
	Total financial guarantees	$	232,456	$	267,605	$	284,309

Changes in Repurchase Reserve

Changes in the repurchase reserves for the three and six months ended June 30, 2016 and 2015 are as follows:

	Three Months Ended June 30,					Six Months Ended June 30,
(In thousands)	2016		2015			2016			2015
Balance at beginning of period	$	2,625	$	6,650		$	2,725		$	7,250
Net increase/(decrease) to reserve	—		363			(53		)	(39		)
Net realized (losses)/gains	—		(363		)	(47		)	(561		)
Balance at end of period	$	2,625	$	6,650		$	2,625		$	6,650