Pension and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2015

Compensation and Retirement Disclosure [Abstract]

Summary of Net Periodic Benefit Cost

The following tables summarize the components of net periodic benefit cost (benefit):

	Three months ended June 30,
	Webster Pension						Webster SERP				Other Postretirement Benefits
(In thousands)	2015			2014			2015		2014		2015		2014
Service cost	$	13		$	10		$	—	$	—	$	—	$	—
Interest cost on benefit obligations	2,015			2,002			87		92		31		34
Expected return on plan assets	(2,974		)	(2,875		)	—		—		—		—
Amortization of prior service cost	—			—			—		—		18		19
Recognized net loss	1,435			688			115		23		12		—
Net periodic benefit cost (benefit)	$	489		$	(175	)	$	202	$	115	$	61	$	53

	Six months ended June 30,
	Webster Pension						Webster SERP				Other Postretirement Benefits
(In thousands)	2015			2014			2015		2014		2015		2014
Service cost	$	23		$	20		$	—	$	—	$	—	$	—
Interest cost on benefit obligations	4,004			4,005			173		184		62		68
Expected return on plan assets	(5,937		)	(5,750		)	—		—		—		—
Amortization of prior service cost	—			—			—		—		36		37
Recognized net loss	2,862			1,375			195		46		24		—
Net periodic benefit cost (benefit)	$	952		$	(350	)	$	368	$	230	$	122	$	105