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v3.25.2

Income Taxes - Deferred Tax Asset Valuation Allowance (Details) - USD ($) | 12 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Deferred Tax Asset, Valuation Allowance |  |  |
Beginning balance | $ 141,300,000 | $ 92,200,000 | $ 25,400,000
Changes in valuation allowance | 37,200,000 | 41,300,000 | 66,800,000
Other | (1,000,000.0) | 7,800,000 | 0
Ending balance | $ 177,500,000 | $ 141,300,000 | $ 92,200,000

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- Definition Deferred Tax Asset, Valuation Allowance, Adjustments Related To Discontinued Operations + References No definition available. + Details
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Namespace Prefix: | starz_
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Balance Type: | credit
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- Definition Deferred Tax Asset, Valuation Allowance + References No definition available. + Details
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Namespace Prefix: | starz_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
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Period Type: | instant

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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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