Earnings Per Share - Antidilutive Shares (Details) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Antidilutive Shares	945	108	1,808
Combination [Member]
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		4,300,000
Business Acquisition, Equity Interest Issued or Issuable, Percentage Of Company in Shares Issued		24.50%