RESTRUCTURING CHARGES - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 0	$ 3,034,000	$ 720,000	$ 3,034,000
Employee Severance [Member] | Chief Executive Officer
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0		0
Restructuring Charges					$ 1,500,000
Spectrum Reorganization Plan | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Cost incurred, cumulative	3,300,000		3,300,000
Spectrum Reorganization Plan | Facility exit costs
Restructuring Cost and Reserve [Line Items]
Cost incurred, cumulative	1,300,000		1,300,000
Restructuring and related cost, expected cost remaining	$ 0		$ 0