Derivative financial instruments (Tables)

3 Months Ended

Mar. 31, 2017

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Information about Interest Rate Swap Agreements

Information about interest rate swap agreements entered into for interest rate risk management purposes summarized by type of financial instrument the swap agreements were intended to hedge follows:

	Notional		Average		Weighted- Average Rate						Estimated Fair
	Amount		Maturity		Fixed			Variable			Value Gain
	(In thousands)		(In years)								(In thousands)
March 31, 2017
Fair value hedges:
Fixed rate long-term borrowings (a)	$	900,000		.8		3.75	%		2.24	%	$	7,773
December 31, 2016
Fair value hedges:
Fixed rate long-term borrowings (a)	$	900,000		1.1		3.75	%		2.08	%	$	11,892

 (a)Under the terms of these agreements, the Company receives settlement amounts at a fixed rate and pays at a variable rate.

Information about Fair Values of Derivative Instruments in Consolidated Balance Sheet

Information about the fair values of derivative instruments in the Company’s consolidated balance sheet and consolidated statement of income follows:

	Asset Derivatives				Liability Derivatives
	Fair Value				Fair Value
	March 31, 2017		December 31, 2016		March 31, 2017		December 31, 2016
	(In thousands)
Derivatives designated and qualifying as hedging instruments
Fair value hedges:
Interest rate swap agreements (a)	$	7,773		11,892	$	—		—
Commitments to sell real estate loans (a)		825		33,189		2,321		1,347
		8,598		45,081		2,321		1,347
Derivatives not designated and qualifying as hedging instruments
Mortgage-related commitments to originate real estate loans for sale (a)		16,847		8,060		645		735
Commitments to sell real estate loans (a)		4,126		5,210		1,582		399
Trading:
Interest rate contracts (b)		109,996		228,810		134,919		167,737
Foreign exchange and other option and futures contracts (b)		4,632		7,908		3,776		6,639
		135,601		249,988		140,922		175,510
Total derivatives	$	144,199		295,069	$	143,243		176,857

(a) Asset derivatives are reported in other assets and liability derivatives are reported in other liabilities.

(b) Asset derivatives are reported in trading account assets and liability derivatives are reported in other liabilities.

Information about Fair Values of Derivative Instruments in Consolidated Statement of Income

	Amount of Gain (Loss) Recognized
	Three Months Ended March 31, 2017					Three Months Ended March 31, 2016
	Derivative			Hedged Item		Derivative			Hedged Item
	(In thousands)
Derivatives in fair value hedging relationships
Interest rate swap agreements:
Fixed rate long-term borrowings (a)	$	(4,119	)		4,012	$	(2,633	)		1,870
Derivatives not designated as hedging instruments
Trading:
Interest rate contracts (b)	$	1,950				$	974
Foreign exchange and other option and futures contracts (b)		1,836					1,212
Total	$	3,786				$	2,186

(a) Reported as other revenues from operations.  

(b) Reported as trading account and foreign exchange gains.