Leases (Future Minimum Operating Lease Payments) (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Leases
Remainder of 2019	$ 3,795
2020	15,922
2021	13,472
2022	12,124
2023	10,384
Thereafter	113,731
Total future minimum lease payments	169,428
less: imputed interest	(46,436)
Total operating lease liability	122,992
less: operating lease liability - current	(10,748)
Total operating lease liability - non current	$ 112,244