Income Tax - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Valuation Allowance [Line Items]
Additional paid-in capital	$ 1,005,366	$ 1,054,997
Unrecorded deferred tax liability	5,300
CFS
Valuation Allowance [Line Items]
Additional paid-in capital	13,400
Ameriana
Valuation Allowance [Line Items]
Additional paid-in capital	11,900
State and Local Jurisdiction
Valuation Allowance [Line Items]
State tax loss carryforward	19,300
State deferred tax assets	$ 5,000