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Operating Leases
12 Months Ended
Dec. 31, 2018
Leases [Abstract]  
Operating Leases
Operating Leases

Rental expense for all non-cancelable operating leases was $18.9 million and $17.0 million in 2018 and 2017, respectively.

Future minimum rentals under operating leases are as follows (dollars in thousands):
2019
 
2020
 
2021
 
2022
 
2023
 
2024 and
thereafter
 
$15,407
 
$13,787
 
$10,339
 
$9,143
 
$8,551
 
$20,755