Stock Compensation - Schedule of Restricted, Phantom, and Board of Director Awards (Details) - $ / shares	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Restricted stock units
Number of Awards
Non-vested, beginning balance (in shares)	1,015,822	668,696
Granted (in shares)	1,906,745	853,650
Vested (in shares)	(232,136)	(267,249)
Forfeited or expired (in shares)	(236,809)	(239,275)
Non-vested, ending balance (in shares)	2,453,622	1,015,822
Weighted-Average Grant Date Fair Value
Non-vested, beginning balance (in dollars per share)	$ 4.26	$ 6.76
Granted (in dollars per share)	1.65	3.13
Vested (in dollars per share)	5.21	5.48
Forfeited or expired (in dollars per share)	4.44	4.47
Non-vested, ending balance (in dollars per share)	$ 2.12	$ 4.26
Phantom stock options
Number of Awards
Non-vested, beginning balance (in shares)	182,882	112,183
Granted (in shares)	247,166	136,450
Vested (in shares)	(57,986)	(43,219)
Forfeited or expired (in shares)	(46,420)	(22,532)
Non-vested, ending balance (in shares)	325,642	182,882
Weighted-Average Grant Date Fair Value
Non-vested, beginning balance (in dollars per share)	$ 4.30	$ 6.71
Granted (in dollars per share)	1.65	3.09
Vested (in dollars per share)	4.49	5.41
Forfeited or expired (in dollars per share)	2.42	4.51
Non-vested, ending balance (in dollars per share)	$ 2.26	$ 4.30
Director \| Restricted stock
Number of Awards
Non-vested, beginning balance (in shares)	207,423	64,369
Granted (in shares)	214,177	233,362
Vested (in shares)	(234,298)	(90,308)
Forfeited or expired (in shares)	0	0
Non-vested, ending balance (in shares)	187,302	207,423
Weighted-Average Grant Date Fair Value
Non-vested, beginning balance (in dollars per share)	$ 2.29	$ 7.21
Granted (in dollars per share)	2.45	2.29
Vested (in dollars per share)	2.28	5.80
Forfeited or expired (in dollars per share)	0	0
Non-vested, ending balance (in dollars per share)	$ 2.48	$ 2.29

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 number of grants made 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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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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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

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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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