Lease Obligations - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Lessee, Lease, Description
Option to extend (years)	10 years
Option to terminate	1 year
Operating lease expense	$ 5.3	$ 5.7
Weighted average remaining lease term	5 years 3 months 29 days		4 years 8 months 15 days
Weighted average discount rate (percent)	6.42%		6.47%
Minimum
Lessee, Lease, Description
Remaining term (years)	1 year
Maximum
Lessee, Lease, Description
Remaining term (years)	10 years
Interest rate (percent)	8.70%