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Leases - Related Party Leases (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
lease
Dec. 31, 2018
USD ($)
Future minimum lease payments at December 31, 2018 under ASC 840    
2019   $ 4,259
2020   3,904
2021   3,614
2022   3,199
2023   2,704
Thereafter   5,910
Total lease obligations   23,590
Related Party    
Lessee, Lease, Description [Line Items]    
Number of operating leases | lease 9  
Total rent expense to related parties $ 2,168  
Amounts owed to related parties $ 0  
Future minimum lease payments at December 31, 2018 under ASC 840    
2019   2,250
2020   2,250
2021   2,250
2022   2,250
2023   2,130
Thereafter   4,410
Total lease obligations   15,540
Third Party    
Future minimum lease payments at December 31, 2018 under ASC 840    
2019   2,009
2020   1,654
2021   1,364
2022   949
2023   574
Thereafter   1,500
Total lease obligations   $ 8,050