SHARE-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

Summary of Stock Option Activity

The following table is a summary of our stock option activity (in thousands, except per share data):

	Three months ended March 31,
	2022			2021
	Awards	Weighted-Average Exercise Price		Awards	Weighted-Average Exercise Price
Outstanding at beginning of period	32	$	54.98	61	$	48.19
Exercised	—	—		(11)	42.62
Outstanding at end of the period	32	$	54.98	50	$	49.43
Exercisable at end of the period	28	$	52.76	41	$	44.93

Summary of Restricted Stock Activity

The following table summarizes our restricted stock activity (in thousands, except per share data):

	Three months ended March 31,
	2022			2021
	Shares	Weighted-Average Grant Date Fair Value		Shares	Weighted-Average Grant Date Fair Value
Outstanding at beginning of period	43	$	183.51	50	$	116.06
Granted	29	175.66		17	253.03
Vested	(18)	149.95		(14)	109.14
Outstanding at end of the period	54	$	190.20	53	$	157.80

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award

The total expenses during the three months ended March 31, 2022 and 2021 are as follows (in thousands):

	Three months ended March 31,
	2022			2021
	Shares	Share-Based Compensation Expense		Shares	Share-Based Compensation Expense
Options and restricted stock	86	$	1,087	103	$	938
Performance-based share awards granted in 2022	25	79		—	—
Performance-based share awards granted in 2021	15	640		14	54
Performance-based share awards granted in 2020	26	469		28	495
Performance-based share awards granted in 2019	—	—		17	711
Total share-based compensation	152	$	2,275	162	$	2,198