Leases - Commitments Under Previous Presentation (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Capital Lease Obligations
2019	$ 4,392
2020	1,754
2021	481
2022	0
2023	0
Thereafter	0
Total minimum payments required	6,627
Amounts representing interest	648
Present value of net minimum payments	5,979
Current maturities	3,884
Long-term payment obligations	2,095
Operating Leases
2019	4,904
2020	4,783
2021	4,185
2022	4,180
2023	4,205
Thereafter	9,760
Total minimum payments required	32,017
Build-to-Suit Lease
2019	9,451
2020	9,522
2021	10,354
2022	10,520
2023	10,599
Thereafter	27,715
Total minimum payments required	$ 78,161

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