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STOCK-BASED COMPENSATION PLANS - Narrative (Details) $ in Thousands			3 Months Ended			12 Months Ended
	Feb. 26, 2021 shares	Mar. 16, 2020 shares	Mar. 31, 2022 USD ($) performance_period shares	Mar. 31, 2021 USD ($)	Mar. 31, 2019	Dec. 31, 2021 shares	Dec. 31, 2020	Dec. 31, 2019
Stock-based compensation
Total intrinsic values of stock options exercised (in dollars per share) | $			$ 0
Cash received from the exercise of stock options (in dollars per share) | $			0
Total fair value of restricted stock awards, restricted stock units and performance-based stock units on date vested | $			5,533	$ 28,182
Fair value of the assumed awards attributable to future stock-based compensation expense | $			$ 21,100
Expected period for unrecognized expense			2 years
RSUs
Stock-based compensation
Eligible to vest (in shares)			3,711,148			5,389,611
Granted (in shares)			71,077
PSUs
Stock-based compensation
Eligible to vest (in shares)			4,547,092			4,987,876
Granted (in shares)			18,225
Total fair value of restricted stock awards, restricted stock units and performance-based stock units on date vested | $			$ 900
Performance Shares, Performance Based
Stock-based compensation
Granted percentage						60.00%	60.00%	60.00%
Number of performance periods | performance_period			3
Percent of performance metrics achieved			200.00%
Vesting percentage			33.33%
Service period			3 years
Performance Shares, Market Based
Stock-based compensation
Granted percentage					40.00%	40.00%	40.00%
Number of performance periods | performance_period			1
Percent of performance metrics achieved			200.00%
Performance period (in years)			3 years
RSAs and RSUs
Stock-based compensation
Total fair value of restricted stock awards, restricted stock units and performance-based stock units on date vested | $			$ 10,300
Chief Executive Officer | RSUs
Stock-based compensation
Eligible to vest (in shares)		462,963
Chief Executive Officer | PSUs
Stock-based compensation
Maximum number of shares to be settled (in shares)		4,750,000
Granted (in shares)	1,333,333

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