In accordance with ASC 718, Compensation-Stock Compensation, the Company measures the cost of employee services rendered in exchange for share-based compensation based upon the grant date fair market value. The cost is recognized over the requisite service period, which is generally the vesting period unless service or performance conditions require otherwise. The Company recognizes the impact of forfeitures as they occur.

Equity compensation expense is included in operating expenses and in selling, general and administrative expenses in the accompanying unaudited condensed consolidated statements of comprehensive loss as follows:

	For the Three Months Ended March 31,
	2020			2019
	(In thousands)
Equity compensation included in operating expenses	$	(1,751	)	$	1,357
Equity compensation included in selling, general and administrative expenses		(1,850	)		1,841
Total equity compensation expense	$	(3,601	)	$	3,198

The credit in equity compensation expense for the three months ended March 31, 2020 primarily relates to certain performance vesting restricted units which are no longer considered probable of vesting and also includes the reversal of expense related to outstanding unvested equity awards previously held by the Company’s former chief executive officer which were forfeited in connection with his departure. See Long-term Incentive Performance Restricted Awards section which follows for further details.

The Company has reserved 15.0 million shares of common stock for issuance under its Omnibus Incentive Plan (the “Omnibus Incentive Plan”), of which approximately 8.75 million shares are available for future issuance as of March 31, 2020. The Company has outstanding time restricted awards, performance restricted awards and incentive stock options.

On April 12, 2020, in connection with a review of compensation matters, the Compensation Committee of the Board of Directors (the “Board”), approved a grant of approximately 1.17 million restricted stock units designed to recognize certain employees for their contributions and continued expected contributions to the Company and its long term goals during the global COVID-19 pandemic. The restricted stock units will vest 50% on each of the first two anniversaries of the grant date, subject to the recipient’s continued employment on each such vesting date.

The Company had an annual bonus plan for the fiscal year ended December 31, 2019 (“Fiscal 2019”), under which certain employees were eligible to vest in performance vesting restricted units (the “Bonus Performance Restricted Units”) based upon the Company’s achievement of certain performance goals with respect to Fiscal 2019. Separately, certain equity awards granted in October 2019 (the “Supplemental Grant”) were also eligible to vest based on achievement of specific performance goals with respect to Fiscal 2019. Based on the Company’s actual Fiscal 2019 results, a portion of these Bonus Performance Restricted Units and the Supplemental Grant vested in the three months ended March 31, 2020 in accordance with their terms. The Company has not yet approved an annual bonus plan for fiscal year ended December 31, 2020 (“Fiscal 2020”).

During the three months ended March 31, 2020, a portion of previously granted long-term incentive performance restricted awards related to completed performance periods vested. The remaining outstanding long-term incentive performance restricted awards related to future performance periods are eligible to vest based upon the Company’s achievement of pre-established performance goals for the respective performance period, as defined.

On February 25, 2020, the Board approved a modification (the “Modification”) to certain long-term incentive plan awards granted in 2019 (the “2019 LTIP Performance Awards”) in order to better align its terms with certain awards granted by the Company to its then CEO in November 2019 (the “CEO Performance Awards”). The Compensation Committee of the Board determined that it was preferable to align the 2019 LTIP Performance Awards with the CEO Performance Awards to put everyone on the same performance cycle with the same performance goals. Pursuant to the Modification, the threshold and target performance goals were revised to align with the CEO Performance Awards threshold and target performance goals and the performance period was extended through calendar year 2022 (or, the end of the 2023 calendar year, as applicable) consistent with the CEO Performance Awards. Equity compensation expense has not yet been recorded related to these awards. The Company will use the respective modification date fair value to record equity compensation expense related to the Modification awards when and if they become probable of vesting in a future period, in accordance with the guidance in ASC 718, Compensation-Stock Compensation.

The Company recognizes equity compensation expense for its performance-vesting restricted awards ratably over the related performance period, if the performance condition is probable of being achieved. Based on the Company’s progress towards its respective performance goals, a portion of its performance-vesting restricted awards were no longer considered probable of vesting as of March 31, 2020; therefore, equity compensation expense was adjusted accordingly. If the probability of vesting related to these awards changes in a subsequent period, all equity compensation expense related to those awards that would have been recorded over the requisite service period had the awards been considered probable at the new percentage from inception, will be recorded as a cumulative catch-up at such subsequent date.