Operating Leases - Lease Cost (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Lessee Disclosure [Abstract]
Weighted average lease term (in years)	7 years 1 month 6 days
Weighted average discount rate (as a percent)	5.50%
Lease liabilities from new right-of-use assets obtained during the year	$ 0
Cash paid on operating leases	$ 2,199