SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Business (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2020 USD ($) state item mi
Number of states | state			23
Number of fiber route miles | mi			45,850
Number of voice connections			809,000
Number of data connections			791,000
Number of video connections			80,000
Deferred payroll taxes | $			$ 12.0
Forecast
Percentage of deferred payroll taxes due	50.00%	50.00%