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Commitments
12 Months Ended
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Commitments
Commitments
Lease commitments under non-cancelable operating leases extending for one year or more will require the following future payments:
 
(Dollars in thousands)
2017
$
2,637

2018
2,158

2019
1,781

2020
1,108

2021
373

After 2021
902


Total lease and rental expenses under non-cancelable operating leases extending one year or more approximated $7.1 million in 2014, $6.2 million in 2015 and $3.6 million in 2016.