Other income and other expense (Tables)

12 Months Ended

Dec. 31, 2017

Other Income And Expenses [Abstract]

Other Income and Other Expense

The following items, which exceeded 1% of total interest income and other income in the respective period, were included in either “other revenues from operations” or “other costs of operations” in the consolidated statement of income:

	Year Ended December 31
	2017		2016		2015
	(In thousands)
Other income:
Credit-related fee income	$	77,580	$	70,424	$	81,558
Letter of credit fees						52,724
Bank owned life insurance						52,984
Other expense:
Professional services		289,862		268,060		267,540
Amortization of capitalized servicing rights						49,906