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Leases
12 Months Ended
Dec. 31, 2017
Leases [Abstract]  
Leases of Lessee Disclosure
Leases
The Company leases certain equipment and facilities under non-cancelable operating leases. Rental expense for the Company totaled approximately $16.7 million in 2017, $17.4 million in 2016 and $17.2 million in 2015.
Minimum payments for operating leases having initial or remaining non-cancelable lease terms in excess of one year at December 31, 2017 are summarized below (dollars in thousands):
Year ended December 31,
 
Minimum Payments
2018
 
$
13,960

2019
 
12,870

2020
 
12,010

2021
 
10,830

2022
 
7,430

Thereafter
 
19,850

Total
 
$
76,950