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Benefit Plans
 9 Months Ended
Sep. 30, 2015
Compensation and Retirement Disclosure [Abstract]  
Benefit Plans
Benefit Plans

The following table provides the components of net periodic benefit cost for the pension, supplemental executive retirement and other postretirement benefit plans:

 
Three Months Ended September 30,
 
Pension and Supplemental
Executive Retirement Plans
 
Other Postretirement
Benefits
 
2015
 
2014
 
2015
 
2014
 
(In thousands)
Service cost
$
2,564

 
$
2,142

 
$
208

 
$
165

Interest cost
3,962

 
3,997

 
174

 
164

Expected return on plan assets
(5,278
)
 
(5,258
)
 
(1,248
)
 
(1,162
)
Recognized net actuarial loss (gain)
1,372

 
271

 
(44
)
 
(109
)
Amortization of prior service cost
(211
)
 
(233
)
 
(1,661
)
 
(1,663
)
 
 
 
 
 
 
 
 
Net periodic benefit cost (benefit)
$
2,409

 
$
919

 
$
(2,571
)
 
$
(2,605
)
 
Nine Months Ended September 30,
 
Pension and Supplemental
Executive Retirement Plans
 
Other Postretirement
Benefits
 
2015
 
2014
 
2015
 
2014
 
(In thousands)
Service cost
$
7,692

 
$
6,425

 
$
624

 
$
494

Interest cost
11,886

 
11,991

 
523

 
491

Expected return on plan assets
(15,832
)
 
(15,773
)
 
(3,743
)
 
(3,486
)
Recognized net actuarial loss (gain)
4,114

 
812

 
(132
)
 
(326
)
Amortization of prior service cost
(633
)
 
(698
)
 
(4,986
)
 
(4,988
)
 
 
 
 
 
 
 
 
Net periodic benefit cost (benefit)
$
7,227

 
$
2,757

 
$
(7,714
)
 
$
(7,815
)


We have made payments totaling $17 million in connection with our qualified pension and supplemental executive retirement plans, completing our annual funding for 2015.