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Operating Leases
12 Months Ended
Dec. 31, 2018
Leases [Abstract]  
Operating Leases
10.
Operating Leases

The Company leases certain property and equipment under cancelable and non-cancelable agreements including office space.

Minimum annual rentals for all operating leases having initial non-cancelable lease terms in excess of one year are as follows (amounts in thousands):
Years Ending December 31,
Amount
2019
$
4,553

2020
3,408

2021
2,454

2022
1,001

2023
28

Thereafter
16

Total future minimum rental payments
$
11,460



Total expense for operating leases amounted to approximately $5.2 million, $5.0 million and $4.7 million during 2018, 2017 and 2016, respectively.