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Rental Expense and Lease Commitments (Tables)
12 Months Ended
Dec. 31, 2018
Rental Expense and Lease Commitments  
Schedule of future minimum rental commitments under non-cancelable operating leases

Future minimum rental commitments under non‑cancelable operating leases are as follows:

 

 

 

 

 

 

Year

    

Commitments

 

 

 

(in thousands)

 

2019

 

$

16,488

 

2020

 

 

9,797

 

2021

 

 

5,757

 

2022

 

 

2,913

 

2023

 

 

2,320

 

Thereafter

 

 

5,161

 

 

 

$

42,436