Employee Compensation Plans - Schedule of Stock Compensation Assumptions Used (Details) - Stock Appreciation Rights (SARs) [Member]	12 Months Ended
	Dec. 31, 2020 USD ($)
January Five Two Thousand Eighteen [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term	2 years
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Fair Value Assumptions Expected Volatility Rate	35.748%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Risk Free Interest Rate	0.265%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Expected Dividend Payments	$ 0.48
January Six Two Thousand Seventeen [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term	1 year
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Fair Value Assumptions Expected Volatility Rate	38.231%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Risk Free Interest Rate	0.167%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Expected Dividend Payments	$ 0.48
January Six Two Thousand Sixteen
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term	5 days
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Fair Value Assumptions Expected Volatility Rate	43.20%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Risk Free Interest Rate	0.121%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Expected Dividend Payments	$ 0.48
January Nine Two Thousand Fifteen [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Fair Value Assumptions Expected Volatility Rate	54.499%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Risk Free Interest Rate	0.104%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Expected Dividend Payments	$ 0.48
January Fourteen Two Thousand Fourteen [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Fair Value Assumptions Expected Volatility Rate	8.018%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Risk Free Interest Rate	0.015%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Expected Dividend Payments	$ 0.48