Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Stock-based Compensation Expense

The following table details the components of stock-based compensation expense (income) recognized in net earnings in each of the past three years:

	Year Ended December 31,
(in thousands)	2020		2019		2018
Restricted Stock	$	24,088	$	25,154	$	24,933
Stock Options	(6,363)		(1,567)		4,320
Total stock-based compensation expense	$	17,725	$	23,587	$	29,253

Schedule of Shares and Units of Restricted Common Stock

A summary of restricted stock and RSU activity during December 31, 2020 follows:

(in thousands, except per share amounts)	Number of Shares/Units	Weighted Average Grant Date Fair Value
Outstanding at beginning of period — unvested	4,582	$	11.42
Granted	4,228	7.57
Canceled	(1,859)	10.30
Vested	(3,411)	9.56
Outstanding at end of period — unvested	3,540	$	8.81

Schedule of Stock Option Activity

Stock option activity for the year ended December 31, 2020 was as follows:

	Year Ended December 31, 2020
(in thousands, except per share amounts)	Number of Shares	Weighted Average Exercise		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Stock option activity:
Outstanding at beginning of period	1,240	$	14.43	6.5	—
Granted	—	—		—	—
Exercised	—	—		—	—
Forfeited and expired	(820)	15.03		—	—
Outstanding at end of period	420	$	13.26	5.7	—