Holdings has established the stockholder-approved 2014 Omnibus Incentive Plan, as amended (the “Omnibus Plan”) to grant cash and equity awards to certain individuals. Compensation values are based on the value of Holdings’ Common Stock on the grant date, which is added to equity and charged to period expense. The Company’s Omnibus Plan was amended in October 2019 to allow for participants to make tax elections with respect to their equity awards.

Holdings has recognized a net total of $24.2, $36.1, and $27.4 of stock compensation expense for the twelve months ended December 31, 2020, 2019, and 2018, respectively. Stock compensation expense is charged in its entirety directly to selling, general and administrative expense.

The Short-Term Incentive Program under the Omnibus Plan enables eligible employees to receive incentive benefits in the form of cash as determined by the Compensation Committee.

The Company’s Omnibus Plan provides non-employee directors the opportunity to receive grants of restricted shares of Common Stock, or Restricted Stock Units (“RSUs”) or a combination of both Common Stock and RSUs. The Common Stock grants and RSU grants vest one year from the grant date subject to the directors compliance with the one-year service condition; however, the RSU grants are not payable until the director’s separation from service. The Board of Directors is authorized to make discretionary grants of shares or RSUs from time to time. Compensation values are based on the value of Holdings’ Common Stock on the grant date, which is added to equity and charged to period expense or included in inventory and cost of sales.

The Company expensed a net amount of $1.4, $1.4, and $1.3 for the restricted shares of Common Stock and RSUs for the twelve months ended December 31, 2020, 2019, and 2018, respectively. The Company’s unamortized stock compensation related to these restricted shares of Common Stock and RSUs is $0.4, which will be recognized over a weighted average remaining period of 4 months. The intrinsic value of the unvested restricted shares of Common Stock and RSUs, based on the value of the Company's stock at December 31, 2020, was $2.5, based on the value of the Company’s Common Stock and the number of unvested shares of restricted Common Stock and RSUs.

The following table summarizes grants of restricted Common Stock and RSUs to members of the Company’s Board of Directors for the twelve months ended December 31, 2020, 2019, and 2018:


	Shares	Value(1)
	Class A	Class A
	(Thousands)
Board of Directors Stock Grants
Nonvested at December 31, 2017	24	$	1.2
Granted during period	17	1.4
Vested during period	(19)	(1.0)
Forfeited during period	—	—
Nonvested at December 31, 2018	22	1.6
Granted during period	17	1.5
Vested during period	(22)	(1.7)
Forfeited during period	—	—
Nonvested at December 31, 2019	17	1.4
Granted during period	65	1.3
Vested during period	(17)	(1.5)
Forfeited during period	—	—
Nonvested at December 31, 2020	65	$	1.2

Holdings has established the Long-Term Incentive Plan (the “LTIP”) under the Omnibus Plan to grant equity awards to certain employees. Generally, specified employees are entitled to receive a long-term incentive award that, for the 2020 year, consisted of the following:

•60% of the award consisted of time-based, service-condition restricted Common Stock that vests in equal installments over a three-year period (the “RS Award”). Values for these awards are based on the value of Common Stock on the grant date.

•20% of the award consisted of performance-based, market-condition restricted Common Stock that vests on the three-year anniversary of the grant date contingent upon TSR compared to the Company’s peers (the “TSR Award”). Values for these awards are initially measured on the grant date using estimated payout levels derived from a Monte Carlo valuation model.

•20% of the award consisted of performance-based, (performance-condition) restricted Common Stock that vests on the three-year anniversary of the grant date contingent upon the Company’s cumulative three-year free cash flow as a percentage of the Company’s cumulative three-year revenues meeting certain pre-established goals (the “FCF Percentage Award”). Values for these awards are based on the dividend adjusted value of Common Stock on the grant date.

For the twelve months ended December 31, 2020, 515,788 shares of Common Stock with an aggregate grant date fair value of $21.0 were granted as RS Awards under the Company's LTIP. In addition, 385,887 shares of Common Stock with an aggregate grant date fair value of $16.1 were granted as TSR Awards and FCF Percentage Awards under the Company’s LTIP.

For the twelve months ended December 31, 2019, 303,638 shares of Common Stock with an aggregate grant date fair value of $27.3 were granted as RS Awards under the Company's LTIP. In addition, 127,802 shares of Common Stock with an aggregate grant date fair value of $13.4 were granted as TSR Awards under the Company’s LTIP.

For the twelve months ended December 31, 2018, 295,482 shares of Common Stock with an aggregate grant date fair value of $25.6 were granted as RS Awards under the Company’s LTIP. In addition, 156,279 shares of Common Stock with an aggregate grant date fair value of $14.1 were granted as TSR Awards under the Company’s LTIP.

The Company expensed a net total of $22.8, $32.2, and $26.1 for share of Common Stock issued under the LTIP for the twelve month periods ended December 31, 2020, 2019, and 2018, respectively.

The Company’s unamortized stock compensation related to these unvested shares of Common Stock is $22.9, which will be recognized over a weighted average remaining period of 1.6 years. The intrinsic value of the unvested shares of Common Stock issued under the LTIP at December 31, 2020 was $34.5, based on the value of the Company’s Common Stock and the number of unvested shares.

The following table summarizes the activity of the restricted shares under the LTIP for the twelve month periods ended December 31, 2020, 2019, and 2018:


	Shares	Value(1)
	Common Stock	Common Stock
	(Thousands)
Long-Term Incentive Plan/Long-Term Incentive Award under Omnibus Plan
Nonvested at December 31, 2017	1,453	$	73.4
Granted during period	451	39.7
Vested during period	(465)	(24.1)
Forfeited during period	(48)	(3.0)
Nonvested at December 31, 2018	1,391	86.0
Granted during period	431	40.6
Vested during period	(393)	(24.2)
Forfeited during period	(125)	(8.4)
Nonvested at December 31, 2019	1,304	94.0
Granted during period	940	39.6
Vested during period	(573)	(39.1)
Forfeited during period	(192)	(14.0)
Nonvested at December 31, 2020	1,479	$	80.5