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The amount of fee payable on expiration or in the event of not exercising the option to purchase under the asset purchase agreement.

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The amount of spectrum purchase option fair value under the business combination.

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Represents the fair value of investments in marketable debt and equity securities. It also represents the fair values of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

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Amount paid as an upfront payment under the agreement.

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No definition available.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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No definition available.

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Marketable Investment Securities, Restricted Cash and Cash Equivalents, and Other Investment Securities - Investments Measured at Fair Value On A Recurring Basis (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Oct. 15, 2023	Dec. 31, 2022	Jul. 01, 2020
Fair value of marketable securities
Debt securities	$ 206,000
Derivative's fair value	1,501,000		$ 1,693,000
The Amendment \| Subsequent event
Fair value of marketable securities
Upfront payment		$ 100,000
Fair value measurements on recurring basis
Fair value of marketable securities
Cash Equivalents (including restricted)	745,774		1,620,458
Total	206,048		877,672
Fair value measurements on recurring basis \| U.S. Treasury and agency securities
Fair value of marketable securities
Total	5,076		22,824
Fair value measurements on recurring basis \| Commercial paper
Fair value of marketable securities
Total	180,086		696,324
Fair value measurements on recurring basis \| Corporate securities
Fair value of marketable securities
Total	17,901		156,380
Fair value measurements on recurring basis \| Other (including restricted)
Fair value of marketable securities
Total	2,910		1,489
Fair value measurements on recurring basis \| Equity securities
Fair value of marketable securities
Equity securities	75		655
Fair value measurements on recurring basis \| Level 1
Fair value of marketable securities
Cash Equivalents (including restricted)	54,839		174,050
Total	5,151		23,479
Fair value measurements on recurring basis \| Level 1 \| U.S. Treasury and agency securities
Fair value of marketable securities
Total	5,076		22,824
Fair value measurements on recurring basis \| Level 1 \| Equity securities
Fair value of marketable securities
Equity securities	75		655
Fair value measurements on recurring basis \| Level 2
Fair value of marketable securities
Cash Equivalents (including restricted)	690,935		1,446,408
Total	200,753		854,049
Fair value measurements on recurring basis \| Level 2 \| Commercial paper
Fair value of marketable securities
Total	180,086		696,324
Fair value measurements on recurring basis \| Level 2 \| Corporate securities
Fair value of marketable securities
Total	17,901		156,380
Fair value measurements on recurring basis \| Level 2 \| Other (including restricted)
Fair value of marketable securities
Total	2,766		1,345
Fair value measurements on recurring basis \| Level 3
Fair value of marketable securities
Total	144		144
Fair value measurements on recurring basis \| Level 3 \| Other (including restricted)
Fair value of marketable securities
Total	144		$ 144
Boost Mobile Acquisition
Fair value of marketable securities
Spectrum purchase option fair value				$ 713,000
Spectrum Purchase Agreement
Fair value of marketable securities
Termination fee	$ 72,000
Asset Purchase Agreement, Deadline to Divest Licenses, Extension Period	60 days