Compensation Plans Outstanding Longer Term Incentive Awards (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Outstanding Long Term Incentive Awards [Line Items]
Target Shares Issuable as Long Term Incentive Awards	$ 26,002	$ 20,860
Maximum Shares Issuable as Long Term Incentive Awards	52,004	41,720
Unrecognized Compensation Cost - Long Term Incentives	$ 704,000	$ 366,000
Share-based Compensation Arrangement By Share-based Payment Award, Grants In Period, Weighted Average Grant Date Fair Value	$ 38,090.00	$ 47,460