Employee Compensation Plans - Stock Appreciation Rights (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares		12 Months Ended
Jan. 11, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number		2,282,846
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights unvested amount		2,282,846
Total Number of OARs outstanding		0
Total weighted average strike price		$ 23.75
Total weighted average remaining contractual life		3 years 1 month 6 days
Total weighted average fair value per share		$ 10.91
Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number Of Stock Appreciation Rights Granted	639,050
January Five Two Thousand Eighteen [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number		447,310
Strike price		$ 27.05
Remaining contractual life		2 years
Fair value per share		$ 8.79
January Six Two Thousand Seventeen [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number		378,020
Strike price		$ 18.90
Remaining contractual life		1 year
Fair value per share		$ 13.37
January Six Two Thousand Sixteen
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number		394,310
Strike price		$ 15.89
Remaining contractual life		5 days
Fair value per share		$ 15.54
January Eleven Two Thousand Twenty
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number		524,566
Strike price		$ 26.45
Remaining contractual life		3 years
Fair value per share		$ 9.31
January Ten Two Thousand Twenty
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number		538,640
Strike price		$ 27.54
Remaining contractual life		4 years
Fair value per share		$ 9.14

Number of stock appreciation rights granted.

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- Definition

The fair value per share of each stock appreciation rights award outstanding by grant date as of the balance sheet date.

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- Definition

The number of each stock appreciation rights award outstanding as of the balance sheet date.

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- Definition

The remaining contractual term of the stock appreciation rights outstanding by grant date as of the balance sheet date.

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- Definition

The strike price of each stock appreciation rights award outstanding.

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- Definition

The weighted average fair value per share of the total stock appreciation rights outstanding as of the balance sheet date.

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- Definition

The weighted average remaining contractual term of the total stock appreciation rights outstanding as of the balance sheet date.

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- Definition

The weighted average strike price of the total stock appreciation rights outstanding as of the balance sheet date.

+ References

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- Definition

Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights unvested amount

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- Definition

Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights vested amount

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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