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Stock Compensation and Unit-Based Compensation - Summary of Restricted Stock and Deferred Stock Units Granted Activity (Details) - Stock Units	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Nonvested, December 31, 2018 | shares	79,998
Number of Shares, Granted | shares	1,566,205
Number of Shares, Vested | shares	(274,939)
Number of Shares, Cancelled | shares	(129,771)
Number of Shares, Nonvested, December 31, 2019 | shares	1,241,493
Weighted Average Grand Date Fair Value, Nonvested, December 31, 2018 | $ / shares	$ 15.00
Weighted Average Grand Date Fair Value, Granted | $ / shares	2.47
Weighted Average Grand Date Fair Value, Vested | $ / shares	4.62
Weighted Average Grand Date Fair Value, Cancelled | $ / shares	1.90
Weighted Average Grand Date Fair Value, Nonvested, December 31, 2019 | $ / shares	$ 2.86

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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