Percentage of adjustment of applicable interest rate.

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Amount, after unamortized (discount) premium and debt issuance costs, of customer receivable credit facility, classified as current.

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Amount, after unamortized (discount) premium and debt issuance costs, of customer receivable credit facility, classified as non-current.

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Percentage of the base rate before addition of LIBOR.

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The debt instrument covenant for net leverage ratio.

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The debt instrument covenant net leverage ratio, if qualifying event.

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The maximum consolidated net total leverage ratio under the debt instrument covenant.

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The minimum consolidated fixed charge coverage ratio under the debt instrument covenant.

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Trailing period of consolidated EBITDA under the debt instrument

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The amount of financial liabilities assumed (as defined) which have been recognized as of the acquisition date.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the required periodic payments applied to principal.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Fixed interest rate related to the interest rate derivative.

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The number of derivative instruments of a particular group held by the entity.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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LONG-TERM DEBT (Details) $ in Thousands				3 Months Ended
LONG-TERM DEBT (Details) $ in Thousands	Dec. 23, 2022 USD ($)	Jul. 22, 2021 USD ($)	Apr. 10, 2019 USD ($)	Mar. 31, 2023 USD ($) derivative	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)	Nov. 07, 2022 USD ($)	Sep. 05, 2022 USD ($)	Jun. 15, 2022 USD ($)	May 05, 2022	Mar. 26, 2020 USD ($)	Dec. 31, 2016 USD ($)	Jul. 01, 2016 USD ($)
Long-term debt
Outstanding borrowings				$ 512,788		$ 467,248
Current portion of customer receivable credit facility				6,574		$ 6,073
Revolving credit facility - borrowings				$ 57,553	$ 36,500
Alaska credit facility \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Long-term debt
Percentage of adjustment to applicable interest rate	0.10%
One Communications Debt \| Minimum \| LIBOR
Long-term debt
Basis spread on variable rate (as a percent)				2.50%
One Communications Debt \| Maximum \| LIBOR
Long-term debt
Basis spread on variable rate (as a percent)				2.75%
GTT Credit Facility
Long-term debt
Stated interest rate				7.50%
GTT Term Loan Facility
Long-term debt
Maximum borrowing capacity								$ 2,900
Debt instrument term				5 years
Borrowings outstanding				$ 0
GTT Overdraft Facility
Long-term debt
Maximum borrowing capacity								$ 5,700
Borrowings outstanding				3,600
Viya Debt
Long-term debt
Term loan assumed													$ 60,000
Net leverage ratio										7.0			3.5
Stated interest rate												4.00%	4.00%
Financing costs												$ 900
Outstanding debt				60,000
Unamortized financing costs				300
Revolver loan \| Credit facility
Long-term debt
Maximum borrowing capacity			$ 200,000
Remaining borrowing capacity				54,000
Net leverage ratio, if qualifying event			3.25
Borrowings outstanding				122,000
Revolver loan \| Credit facility \| Minimum
Long-term debt
Commitment fee (as a percent)			0.15%
Net leverage ratio			1.75
Revolver loan \| Credit facility \| Minimum \| LIBOR
Long-term debt
Basis spread on variable rate (as a percent)			1.25%
Revolver loan \| Credit facility \| Minimum \| Base rate
Long-term debt
Basis spread on variable rate (as a percent)			0.25%
Revolver loan \| Credit facility \| Maximum
Long-term debt
Commitment fee (as a percent)			0.375%
Net leverage ratio			2.75
Revolver loan \| Credit facility \| Maximum \| LIBOR
Long-term debt
Basis spread on variable rate (as a percent)			2.25%
Revolver loan \| Credit facility \| Maximum \| Base rate
Long-term debt
Basis spread on variable rate (as a percent)			1.25%
Letter of credit sub-facility
Long-term debt
Borrowings outstanding				4,200
Letter of credit sub-facility \| Credit facility
Long-term debt
Maximum borrowing capacity			$ 75,000
Performance letters of credit issued and outstanding				24,000
Swingline sub-facility \| Credit facility
Long-term debt
Maximum borrowing capacity			$ 10,000
Base rate before one-week or one-month LIBOR (as a percent)			1.00%
Swingline sub-facility \| Credit facility \| Federal Funds Effective Rate
Long-term debt
Basis spread on variable rate (as a percent)			0.50%
Term loans \| Credit facility
Long-term debt
Maximum borrowing capacity			$ 200,000
Senior secured delayed draw term loan \| Receivable credit facility
Long-term debt
Maximum borrowing capacity											$ 75,000
Remaining borrowing capacity				18,000
Current portion of customer receivable credit facility				6,600
Financing costs				800
Borrowings outstanding				48,700
Unamortized financing costs				600
Senior secured delayed draw term loan \| Sacred Wind Term Debt
Long-term debt
Outstanding borrowings				30,600			$ 31,600
Current portion of customer receivable credit facility				3,200
Non-current portion of customer receivable credit facility				$ 27,400
Interest rate swap \| Credit facility
Long-term debt
Number of derivative instruments \| derivative				0
Alaska communications \| Alaska credit facility
Long-term debt
Fixed charge coverage ratio		1.25
Net total leverage ratio		4.00
Financing costs				$ 7,300
Unamortized financing costs				5,000
Consolidated EBITDA		12 months
Alaska communications \| Alaska credit facility \| Base rate
Long-term debt
Basis spread on variable rate (as a percent)		1.00%
Alaska communications \| Alaska credit facility \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Long-term debt
Percentage of adjustment to applicable interest rate		0.10%
Alaska communications \| Alaska credit facility \| Minimum \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Long-term debt
Basis spread on variable rate (as a percent)		3.00%
Alaska communications \| Alaska credit facility \| Maximum \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Long-term debt
Basis spread on variable rate (as a percent)		4.00%
Alaska communications \| Revolver loan \| Alaska credit facility
Long-term debt
Maximum borrowing capacity	$ 75,000	$ 35,000
Revolving credit facility - borrowings				17,000
Borrowings available to draw				58,000
Alaska communications \| Term loans \| Alaska credit facility
Long-term debt
Outstanding borrowings	$ 230,000	210,000
Borrowings outstanding				230,000
Alaska communications \| Secured delayed draw term loan \| Alaska Term Facility
Long-term debt
Maximum borrowing capacity									$ 7,500
Remaining borrowing capacity				0
Outstanding borrowings				$ 7,100
Stated interest rate									4.00%
Alaska communications \| Incremental term loans \| Alaska credit facility \| Minimum
Long-term debt
Maximum borrowing capacity		$ 70,000
Alaska communications \| Designated as cash flow hedges \| Interest rate swap
Long-term debt
Interest rate (as a percent)		1.6735%
Number of derivative instruments \| derivative				0
Period of fourth quarter of 2023 To third quarter 2024 \| Alaska communications \| Alaska credit facility
Long-term debt
Periodic payment, principal		$ 1,400
Debt Instrument, From Fourth Quarter of 2024 To Third Quarter of 2026 \| Alaska communications \| Alaska credit facility
Long-term debt
Periodic payment, principal		$ 2,900
Period of second quarter of 2024 \| Alaska communications \| Alaska credit facility
Long-term debt
Net total leverage ratio		3.75