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Retirement Plans - (Tables)
3 Months Ended
Mar. 31, 2020
Retirement Benefits [Abstract]  
Schedule of components of net periodic pension expense
Net periodic pension expense for our defined benefit pension plans includes the following components:
 
 
 
Three Months Ended
March 31,
(in thousands)
Location of Component
 
2020
 
2019
Service cost
Cost of revenue
 
$
4,384

 
$
3,981

Interest cost
Corp G&A
 
2,394

 
4,975

Expected return on assets
Corp G&A
 
(6,356
)
 
(8,279
)
Amortization of prior service credit
Corp G&A
 
(218
)
 
(225
)
Recognized net actuarial loss
Corp G&A
 
1,402

 
2,619

Net periodic pension expense
 
 
$
1,606

 
$
3,071