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Employee Compensation Plans - Stock Appreciation Rights (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares |  |  | 12 Months Ended
--- | --- | --- | ---
Jan. 10, 2020 | Dec. 31, 2019 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights unvested amount |  | 2,191,346 | 2,191,346
Total Number of OARs outstanding |  | 0 | 0
Total weighted average strike price |  | $ 0 | $ 0
Total weighted average remaining contractual life |  |  | 2 years 11 months
Total weighted average fair value per share |  | $ 0 | $ 0
Subsequent Event [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number Of Stock Appreciation Rights Granted | 547,560 |  |
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 |  | 535,366 | 535,366
Strike price |  | $ 0 | $ 0
Remaining contractual life |  | 4 years |
Fair value per share |  | $ 0 | $ 0
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 |  | 458,010 | 458,010
Strike price |  | $ 0 | $ 0
Remaining contractual life |  | 3 years |
Fair value per share |  | $ 4.72 | $ 4.72
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 |  | 387,980 | 387,980
Strike price |  | $ 0 | $ 0
Remaining contractual life |  | 2 years |
Fair value per share |  | $ 0 | $ 0
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 Outstanding Number |  | 404,040 | 404,040
Strike price |  | $ 0 | $ 0
Remaining contractual life |  | 1 year |
Fair value per share |  | $ 0 | $ 0
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 Outstanding Number |  | 405,950 | 405,950
Strike price |  | $ 0 | $ 0
Remaining contractual life |  | 8 days |
Fair value per share |  | $ 0 | $ 0

X
- Definition Number of stock appreciation rights granted. + References No definition available. + Details
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Balance Type: | na
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X
- Definition The fair value per share of each stock appreciation rights award outstanding by grant date as of the balance sheet date. + References No definition available. + Details
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- Definition The number of each stock appreciation rights award outstanding as of the balance sheet date. + References No definition available. + Details
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- Definition The remaining contractual term of the stock appreciation rights outstanding by grant date as of the balance sheet date. + References No definition available. + Details
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- Definition The strike price of each stock appreciation rights award outstanding. + References No definition available. + Details
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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. + References No definition available. + Details
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- Definition The weighted average remaining contractual term of the total stock appreciation rights outstanding as of the balance sheet date. + References No definition available. + Details
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- Definition The weighted average strike price of the total stock appreciation rights outstanding as of the balance sheet date. + References No definition available. + Details
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- Definition Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights unvested amount + References No definition available. + Details
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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. + References No definition available. + Details
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