Derivatives and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2017

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Summary of Principle Terms of Interest Rate Swaps

The principal terms at September 30, 2017 are as follows:

Effective Date	Maturity Date	Notional Amount		Weighted Average Fixed Rate			Fair Value Asset (Liability)
		(In thousands)					(In thousands)
May 3, 2017	November 30, 2021	$	500,000		1.764	%	$	1,045
May 3, 2017	November 30, 2021		700,000		1.901	%		(2,380	)
		$	1,200,000				$	(1,335	)