Schedule II - Valuation and Qualifying Accounts (Details) - Deferred tax valuation allowances - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Valuation allowances and reserves [Roll Forward]
Balance at Beginning of Period	$ 12,296	$ 14,219
Charged to Costs and Expenses	(747)	(1,923)
Charged to Other Accounts — Describe	0	0
Deductions — Describe	0	0
Balance at End of Period	$ 11,549	$ 12,296