Financial Instruments with Off-Balance Sheet Risk (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Summary of Financial Instruments with Off-Balance Sheet Risk

Financial instruments with off-balance sheet risk were as follows:

	At December 31,
(In thousands)	2018		2017
Commitments to extend credit:
Consumer real estate and other	$	1,627,960	$	1,484,065
Commercial	1,127,368		1,033,973
Leasing and equipment finance	153,339		126,249
Total commitments to extend credit	2,908,667		2,644,287
Standby letters of credit and guarantees on industrial revenue bonds	20,662		12,992
Total	$	2,929,329	$	2,657,279