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Debt - Long Term Debt (Parenthetical) (Details) |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 27, 2025 | Sep. 30, 2025 | Dec. 31, 2024
Nexstar [Member] | Secured Debt [Member] | Term Loan A, due June 2030 [Member] |  |  |
Long term Debt [Abstract] |  |  |
Due date | Jun. 27, 2030 | Jun. 30, 2030 | Jun. 30, 2030
Nexstar [Member] | Secured Debt [Member] | Term Loan A, due June 2027 [Member] |  |  |
Long term Debt [Abstract] |  |  |
Due date |  | Jun. 30, 2027 | Jun. 30, 2027
Nexstar [Member] | Secured Debt [Member] | Term Loan B, due June 2032 [Member] |  |  |
Long term Debt [Abstract] |  |  |
Due date | Jun. 27, 2032 | Jun. 30, 2032 | Jun. 30, 2032
Nexstar [Member] | Secured Debt [Member] | Term Loan B, due September 2026 [Member] |  |  |
Long term Debt [Abstract] |  |  |
Due date |  | Sep. 30, 2026 | Sep. 30, 2026
Nexstar [Member] | Secured Debt [Member] | Revolving loans, due June 2030 [Member] |  |  |
Long term Debt [Abstract] |  |  |
Due date | Jun. 27, 2030 |  |
Nexstar [Member] | Senior Subordinated Notes [Member] | 5.625% Notes, due July 2027 [Member] |  |  |
Long term Debt [Abstract] |  |  |
Interest rate |  | 5.625% | 5.625%
Due date |  | Jul. 31, 2027 | Jul. 31, 2027
Nexstar [Member] | Senior Subordinated Notes [Member] | 4.75% Notes, due November 2028 [Member] |  |  |
Long term Debt [Abstract] |  |  |
Interest rate |  | 4.75% | 4.75%
Due date |  | Nov. 30, 2028 | Nov. 30, 2028
Nexstar [Member] | Senior Subordinated Notes [Member] | Revolving loans, due June 2030 [Member] |  |  |
Long term Debt [Abstract] |  |  |
Due date |  | Jun. 30, 2030 | Jun. 30, 2030
Mission [Member] | Secured Debt [Member] | Revolving loans, due June 2030 [Member] |  |  |
Long term Debt [Abstract] |  |  |
Due date | Jun. 27, 2030 | Jun. 30, 2030 | Jun. 30, 2030
Mission [Member] | Secured Debt [Member] | Term Loan B, due June 2028 [Member] |  |  |
Long term Debt [Abstract] |  |  |
Due date |  | Jun. 30, 2028 | Jun. 30, 2028
Mission [Member] | Secured Debt [Member] | Revolving loans, due June 2027 [Member] |  |  |
Long term Debt [Abstract] |  |  |
Due date |  | Jun. 30, 2027 | Jun. 30, 2027

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B + Details
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