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

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.

+ 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.

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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.

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- Definition

The strike price of each stock appreciation rights award outstanding.

+ References

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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

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- Definition

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