Commitments and Contingencies Supplemental Cash Flow Information And Certain Other Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Operating Lease, Payments	$ 6,748	$ 8,578
Weighted average remaining lease term - operating leases (in years)	4 years 6 months 21 days	5 years 1 month 9 days
Weighted average discount rate - operating leases	4.10%	4.14%