XML 23 R12.htm IDEA: XBRL DOCUMENT v3.5.0.2
Employee Benefit Plans
 9 Months Ended
Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]  
Employee Benefit Plans
Employee Benefit Plans

Net periodic benefit income for the pension plans included the following components for the three months ended September 30:

 
Pension Benefits
 
2016
 
2015
 
(in thousands)
Service cost
$
2,106

 
$
2,293

Interest cost
26,195

 
24,503

Expected return on plan assets
(39,296
)
 
(37,487
)
Amortization of prior service credit
(108
)
 
(141
)
Amortization of actuarial loss
7,860

 
9,528

Net periodic benefit income
$
(3,243
)
 
$
(1,304
)

Net periodic benefit income for the pension plans included the following components for the nine months ended September 30:
 
 
Pension Benefits
 
2016
 
2015
 
(in thousands)
Service cost
$
6,257

 
$
7,083

Interest cost
78,505

 
73,746

Expected return on plan assets
(117,767
)
 
(112,809
)
Amortization of prior service credit
(324
)
 
(423
)
Amortization of actuarial loss
23,530

 
28,769

Net periodic benefit income
$
(9,799
)
 
$
(3,634
)


Pension benefits also include amounts related to a supplemental retirement plan. During the nine months ended September 30, 2016, the Company made a $38.7 million contribution to the pension plan.