Leases Supplemental Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Right-of-use assets	$ 9,475
Accumulated amortization	(1,028)
Total right-of-use assets, net	8,447	$ 8,600
Current lease liabilities	985	300	$ 0
Noncurrent lease liabilities	13,598	$ 13,700
Total lease liabilities	$ 14,583
Weighted average remaining lease term
Operating leases (in years)	8 years
Weighted average discount rate
Operating leases	5.60%