SUMMARY OF SIGNIFCANT ACCOUNTING POLICIES - Other Income (Details) - USD ($)	6 Months Ended		12 Months Ended
	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Other income, utility credit	$ 0	$ 9,700,000	$ 0	$ 0