Leases - Value of Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Operating Leases
2019	$ 4,097	$ 2,574
2020	4,141	2,369
2021	3,582	2,349
2022	1,717
2023	701	1,130
Subsequent years	627	374
Total lease payments	14,865	10,804
Less: Interest	1,355
Present value of lease liabilities	13,510
Financing Leases
2019	258	1,395
2020	214	1,444
2021	118	1,493
2022	70	760
2023	20	0
Subsequent years	0	0
Total lease payments	680	$ 5,092
Less: Interest	49
Present value of lease liabilities	631
Total
2019	4,355
2020	4,355
2021	3,700
2022	1,787
2023	721
Subsequent years	627
Total lease payments	15,545
Less: Interest	1,404
Present value of lease liabilities	$ 14,141