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Net Periodic Benefit Cost
 6 Months Ended
Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]  
NET PERIODIC BENEFIT COST
NET PERIODIC BENEFIT COST
Net periodic pension cost for the Company’s defined benefit pension plans and U.S. post-retirement medical plan includes the following components for the three months ended June 30:
 
U.S. Pension Benefits
 
Non-U.S. Pension Benefits
 
Other U.S. Post-retirement Benefits
 
Total
 
2014
 
2013
 
2014
 
2013
 
2014
 
2013
 
2014
 
2013
Service cost, net
$
223

 
$
123

 
$
3,923

 
$
4,257

 
$
43

 
$
54

 
$
4,189

 
$
4,434

Interest cost on projected benefit obligations
1,599

 
1,439

 
5,519

 
4,822

 
60

 
101

 
7,178

 
6,362

Expected return on plan assets
(2,137
)
 
(1,788
)
 
(9,596
)
 
(8,570
)
 
—

 
—

 
(11,733
)
 
(10,358
)
Recognition of prior service cost
—

 
—

 
(1,030
)
 
(979
)
 
(195
)
 
22

 
(1,225
)
 
(957
)
Recognition of actuarial losses/(gains)
1,200

 
1,945

 
1,100

 
1,823

 
(358
)
 
(247
)
 
1,942

 
3,521

Net periodic pension cost/(credit)
$
885

 
$
1,719

 
$
(84
)
 
$
1,353

 
$
(450
)
 
$
(70
)
 
$
351

 
$
3,002



Net periodic pension cost for the Company’s defined benefit pension plans and U.S. post-retirement medical plan includes the following components for the six months ended June 30:

 
U.S. Pension Benefits
 
Non-U.S. Pension Benefits
 
Other U.S. Post-retirement Benefits
 
Total
 
2014
 
2013
 
2014
 
2013
 
2014
 
2013
 
2014
 
2013
Service cost, net
$
446

 
$
247

 
$
7,885

 
$
8,627

 
$
85

 
$
108

 
$
8,416

 
$
8,982

Interest cost on projected benefit obligations
3,198

 
2,878

 
11,002

 
9,705

 
120

 
202

 
14,320

 
12,785

Expected return on plan assets
(4,274
)
 
(3,576
)
 
(19,140
)
 
(17,262
)
 
—

 
—

 
(23,414
)
 
(20,838
)
Recognition of prior service cost
—

 
—

 
(2,070
)
 
(1,973
)
 
(389
)
 
43

 
(2,459
)
 
(1,930
)
Recognition of actuarial losses/(gains)
2,400

 
3,891

 
2,206

 
3,669

 
(718
)
 
(494
)
 
3,888

 
7,066

Net periodic pension cost/(credit)
$
1,770

 
$
3,440

 
$
(117
)
 
$
2,766

 
$
(902
)
 
$
(141
)
 
$
751

 
$
6,065



As previously disclosed in the Company's Annual Report on Form 10-K for the year ended December 31, 2013, the Company expects to make employer contributions of approximately $21.8 million to its non-U.S. pension plans and employer contributions of approximately $0.5 million to its U.S. post-retirement medical plan during the year ended December 31, 2014. These estimates may change based upon several factors, including fluctuations in currency exchange rates, actual returns on plan assets and changes in legal requirements.