Commitments and Contingencies (Details) $ in Thousands												1 Months Ended			3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended		189 Months Ended
	Mar. 30, 2024	Oct. 12, 2023 USD ($)	Sep. 29, 2023	Jun. 14, 2023 site	Jun. 14, 2022	Dec. 30, 2020 USD ($)	Jul. 26, 2019 USD ($)	Jun. 08, 2018	Jun. 07, 2018 USD ($)	Jun. 06, 2018	Aug. 18, 2015 USD ($)	Dec. 31, 2027	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2018 USD ($) item	Jun. 30, 2023	Sep. 30, 2023 USD ($) item	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2023 USD ($) item	Jun. 14, 2025	Oct. 15, 2023 USD ($)	Sep. 20, 2022 USD ($)	Jul. 31, 2020 USD ($)
Commitment and Contingencies
Network development current and future expenditures																	$ 10,000,000	$ 10,000,000	$ 10,000,000
Litigation accrual																							$ 3,900
Percentage of population for deploy 5G services				73.00%
Payment to customer																				$ 30,000,000
Percentage of Population Five G Services Offered				70.00%																	75.00%
Percentage of Population to Whom 5G Broadband Service is Provided				50.00%
Number of Cell Sites Deployed | site				16,000
Percentage of Population Northstar Wireless and SNR Wireless offered	75.00%											75.00%
FCC authorizations																	$ 37,817,941	36,933,073		$ 37,817,941
Number Of Markets | item																	60
Interest rate (as a percent)																	0.25%			0.25%
Commitments relating to AWS-3 Auction
Noncontrolling Interest in Variable Interest Entity																	$ 10,000,000			$ 10,000,000
MHz 700 Licenses and AWS-4 Licenses
Commitment and Contingencies
Percentage of Population to Whom 5G Broadband Service is Provided				50.00%
Percentage of population for deploy 5G services in each Economic Area				70.00%
H Block Licenses
Commitment and Contingencies
Percentage of population for deploy 5G services				70.00%
Percentage of Population to Whom 5G Broadband Service is Provided				50.00%
Percentage of population for deploy 5G services in each Economic Area				75.00%
5G Network Development
Commitment and Contingencies
Purchase of ownership interests																	$ 100,000
Number of markets under construction | item																	60			60
Payment to customer																				$ 30,000,000
Commitments relating to AWS-3 Auction
Noncontrolling Interest in Variable Interest Entity																	$ 10,000,000			10,000,000
Capitalized interest on FCC authorizations
Commitment and Contingencies
FCC authorizations																	$ 8,000,000	8,000,000		8,000,000
Spectrum Purchase Agreement
Commitment and Contingencies
Purchase price							$ 3,590,000
Asset Purchase Agreement, Termination Fee Payable																								$ 72,000
Asset Purchase Agreement, Deadline to Divest Licenses, Extension Period																60 days
Class B common stock | Northstar Manager LLC
Commitment and Contingencies
Equity Method Investment, Ownership Percentage						3.00%
Minimum | MHz 700 Licenses and AWS-4 Licenses
Commitment and Contingencies
Minimum percentage of population having access to average download speed			70.00%	70.00%													70.00%
Northstar Manager LLC
Commitment and Contingencies
Accrued redeemable non-controlling interest																	$ 109,000			109,000
Northstar Manager LLC | Class B common stock
Commitment and Contingencies
Ownership percentage						97.00%
Payment For Purchase Agreement						$ 312,000
Wireless
Commitment and Contingencies
Network development current and future expenditures																	10,000,000	10,000,000	$ 10,000,000
Percentage of population for deploy 5G services					20.00%								70.00%	20.00%
FCC authorizations																	$ 19,699,971			19,699,971
Wireless | Maximum
Commitment and Contingencies
Percentage of population for deploy 5G services													70.00%				70.00%
Wireless | At least 50% by June 2023
Commitment and Contingencies
Percentage of population for deploy 5G services													50.00%				50.00%
H Block Licenses
Commitment and Contingencies
FCC authorizations																	$ 1,671,506			1,671,506
DBS Licenses.
Commitment and Contingencies
FCC authorizations																	677,409			677,409
700 MHz Licenses
Commitment and Contingencies
FCC authorizations																	711,871			711,871
600 MHz Licenses
Commitment and Contingencies
FCC authorizations																	6,213,335			6,213,335
MVDDS
Commitment and Contingencies
FCC authorizations																	24,000			24,000
28 GHz Licenses
Commitment and Contingencies
FCC authorizations																	2,883			2,883
24 GHz Licenses
Commitment and Contingencies
FCC authorizations																	11,772			11,772
37 Ghz, 39 Ghz and 47 Ghz Licenses
Commitment and Contingencies
FCC authorizations																	202,533			202,533
3550-3650 MHz Licenses
Commitment and Contingencies
FCC authorizations																	912,939			912,939
Ghz 3.7 to 3.98
Commitment and Contingencies
FCC authorizations																	2,762			2,762
Ghz 3.45 to 3.55
Commitment and Contingencies
FCC authorizations																	7,327,989			7,327,989
1695-1710 MHz, 1755-1780 MHz, and 2155-2180 MHz
Commitment and Contingencies
FCC authorizations																	972			972
Northstar Licenses
Commitment and Contingencies
FCC authorizations																	$ 5,618,930			5,618,930
AWS-3 Licenses
Commitment and Contingencies
Accelerated build out period																	2 years
FCC authorizations																	$ 9,890,389			9,890,389
AWS-4 Licenses
Commitment and Contingencies
FCC authorizations																	1,940,000			1,940,000
SNR Licenses
Commitment and Contingencies
FCC authorizations																	4,271,459			4,271,459
Capitalized Interest
Commitment and Contingencies
FCC authorizations																	8,227,581			8,227,581
Northstar Spectrum And SNR Holdco
Commitment and Contingencies
Ownership interest																	529,000	464,000		529,000
Commitments relating to AWS-3 Auction
Noncontrolling Interest in Variable Interest Entity																	$ 10,000,000			$ 10,000,000
Northstar Spectrum And SNR Holdco | AWS-3 Licenses
Commitment and Contingencies
Interim Build-out Requirement (as a percent)																	40.00%
Final Build-out Requirement (as a percent)																	75.00%
Accelerated period to meet Final Build-Out Requirement on failure to meet Interim Build-Out Requirement																	2 years
Commitments relating to AWS-3 Auction
Percentage of bidding credit																	25.00%
Northstar Wireless or Northstar Spectrum
Commitment and Contingencies
Interim payment percentage																	15.00%
Re-Auction payment																	$ 1,892,000
Overpayment of interim payment																	$ 334,000
Northstar Wireless or Northstar Spectrum | Preferred Class A
Commitment and Contingencies
Ownership percentage																	100.00%
Northstar Wireless or Northstar Spectrum | Northstar Manager LLC
Commitments relating to AWS-3 Auction
Controlling interest owned by other companies																	15.00%
Equity contribution															$ 133,000
Northstar Wireless or Northstar Spectrum | American II.
Commitment and Contingencies
Ownership percentage																	85.00%
Loan made																	$ 69,000
Commitments relating to AWS-3 Auction
Equity contribution															7,621,000
Northstar Wireless or Northstar Spectrum | AWS 3 Auction
Commitment and Contingencies
Interim Payment																	$ 334,000
Interim payment percentage																	15.00%
Northstar Wireless or Northstar Spectrum | Northstar Licenses
Commitment and Contingencies
Number of wireless spectrum licenses | item																	261			261
Commitments relating to AWS-3 Auction
Gross winning bids																	$ 5,619,000
Bidding credit value											$ 1,961,000
Northstar Wireless or Northstar Spectrum | AWS-3 Licenses
Commitment and Contingencies
Non-payment gross winning bids																	2,226,000			$ 2,226,000
Commitments relating to AWS-3 Auction
Gross winning bids																	$ 7,845,000
Percentage of bidding credit																	25.00%
Net winning bid																	$ 5,884,000
Northstar Wireless or Northstar Spectrum | SNR Licenses
Commitments relating to AWS-3 Auction
Percentage of bidding credit											25.00%
SNR Wireless or SNR Wireless Holdco
Commitment and Contingencies
Non-payment gross winning bids																	$ 1,211,000			$ 1,211,000
Interim payment percentage																	15.00%
Re-Auction payment																	$ 1,029,000
Overpayment of interim payment																	$ 182,000
SNR Wireless or SNR Wireless Holdco | Maximum
Commitment and Contingencies
Preferred stock quarterly distribution (as a percent)									12.00%
SNR Wireless or SNR Wireless Holdco | Minimum
Commitment and Contingencies
Preferred stock quarterly distribution (as a percent)									8.00%
SNR Wireless or SNR Wireless Holdco | SNR Wireless Management LLC
Commitments relating to AWS-3 Auction
Controlling interest owned by other companies																	15.00%
Equity contribution															93,000
SNR Wireless or SNR Wireless Holdco | American II.
Commitment and Contingencies
Window of days for management to put its interest								360 days	270 days	90 days
Additional days allowed for management to put its interest									90 days
SNR Wireless or SNR Wireless Holdco | American II. | Maximum
Commitment and Contingencies
Preferred stock quarterly distribution (as a percent)									12.00%
Window of days for management to put its interest									90 days
SNR Wireless or SNR Wireless Holdco | American II. | Minimum
Commitment and Contingencies
Preferred stock quarterly distribution (as a percent)									8.00%
Window of days for management to put its interest										30 days
SNR Wireless or SNR Wireless Holdco | American III
Commitment and Contingencies
Number of wireless spectrum licenses | item																	244			244
Loan made																	$ 344,000
Debt outstanding amount															5,065,000
Principal amount of debt															500,000
Window of days for management to put its interest									90 days	30 days
Additional days allowed for management to put its interest									90 days
Additional loan to pay gross winning bids																	344,000
Commitments relating to AWS-3 Auction
Equity contribution															$ 5,590,000
Gross winning bids																	4,271,000
Value of ownership rights accrued																	$ 420,000			$ 420,000
SNR Wireless or SNR Wireless Holdco | American III | Preferred Class A
Commitment and Contingencies
Number shares issued in conversion | item															5,065,415
Preferred stock quarterly distribution (as a percent)															12.00%
SNR Wireless or SNR Wireless Holdco | American III | Maximum
Commitment and Contingencies
Interest rate (as a percent)															12.00%
SNR Wireless or SNR Wireless Holdco | American III | Minimum
Commitment and Contingencies
Interest rate (as a percent)																	6.00%			6.00%
SNR Wireless or SNR Wireless Holdco | AWS 3 Auction
Commitments relating to AWS-3 Auction
Gross winning bids																	$ 5,482,000
SNR Wireless or SNR Wireless Holdco | AWS-3 Licenses
Commitment and Contingencies
Non-payment gross winning bids																	1,211,000			$ 1,211,000
SNR Wireless or SNR Wireless Holdco | SNR Licenses
Commitment and Contingencies
Interim Payment																	182,000
Non-payment gross winning bids																	$ 1,211,000			1,211,000
Interim payment percentage																	15.00%
Additional Bid Withdrawal Payment																	$ 3,000
Commitments relating to AWS-3 Auction
Percentage of bidding credit																	25.00%
Net winning bid																	$ 4,112,000
Bid withdrawal payment																	$ 8,000
Bidding credit value											$ 1,370,000
SNR Wireless or SNR Wireless Holdco Class B Common Interests | American III
Commitment and Contingencies
Ownership percentage																	85.00%
SNR Wireless or SNR Wireless Holdco Class A Common Interests | American III
Commitment and Contingencies
Ownership percentage																	100.00%
American II. | Northstar Manager LLC | Class B common stock
Commitment and Contingencies
Ownership percentage						80.00%
American II. | American II.
Commitments relating to AWS-3 Auction
Value of ownership rights accrued																	$ 109,000			109,000
Prior Arrangement | Northstar Licenses
Commitment and Contingencies
Non-payment gross winning bids																	2,226,000			2,226,000
Prior Arrangement | Northstar Wireless or Northstar Spectrum
Commitment and Contingencies
Non-payment gross winning bids																	$ 2,226,000			2,226,000
Commitments relating to AWS-3 Auction
Number of licenses returned | item																	84
Prior Arrangement | SNR Wireless or SNR Wireless Holdco | SNR Licenses
Commitments relating to AWS-3 Auction
Number of licenses returned | item																	113
Northstar Operative Agreement | Northstar Spectrum And SNR Holdco | American II.
Commitment and Contingencies
Debt outstanding amount															$ 6,870,000
Northstar Operative Agreement | Northstar Wireless or Northstar Spectrum | American II.
Commitment and Contingencies
Principal amount of debt															$ 500,000
Removal of consent for unsecured financing and equipment financing									$ 25,000
Northstar Operative Agreement | Northstar Wireless or Northstar Spectrum | American II. | Preferred Class A
Commitment and Contingencies
Number shares issued in conversion | item															6,870,493
Preferred stock quarterly distribution (as a percent)															12.00%
Northstar Operative Agreement | Northstar Wireless or Northstar Spectrum | American II. | Maximum
Commitment and Contingencies
Interest rate (as a percent)															12.00%
Loan balance maturity period									10 years
Northstar Operative Agreement | Northstar Wireless or Northstar Spectrum | American II. | Minimum
Commitment and Contingencies
Interest rate (as a percent)															6.00%
Loan balance maturity period										7 years
SNR Operative Agreement | SNR Wireless or SNR Wireless Holdco | American III
Commitment and Contingencies
Loan balance maturity period									10 years	7 years
Removal of consent for unsecured financing and equipment financing									$ 25,000
5G network deployment obligations
Commitment and Contingencies
Total																	$ 1,858,000			1,858,000
Contractual Obligation																	1,858,000			1,858,000
Satellite-related obligations
Commitment and Contingencies
2023 (remaining three months)																	1,485,859			1,485,859
2024																	2,668,442			2,668,442
2025																	2,096,744			2,096,744
2026																	1,840,438			1,840,438
2027																	1,087,858			1,087,858
Thereafter																	4,955,117			4,955,117
Total																	14,134,458	15,115,000		14,134,458
Contractual Obligation																	$ 14,134,458	$ 15,115,000		$ 14,134,458
SNR Credit Agreement | SNR Wireless or SNR Wireless Holdco
Commitment and Contingencies
Loan made															$ 500,000
SNR Credit Agreement | SNR Wireless or SNR Wireless Holdco | American III
Commitment and Contingencies
Loan made															500,000
Northstar Credit Agreement | Northstar Wireless or Northstar Spectrum | American II.
Commitment and Contingencies
Loan made															500,000
Principal amount of debt															$ 500,000
Subsequent event | Northstar Spectrum
Commitment and Contingencies
Purchase of ownership interests		$ 109,000
Subsequent event | The Amendment
Commitment and Contingencies
Upfront payment																						$ 100,000