Number of AM radio station.

No definition available.

Name:	nxst_NumberOfAMRadioStation
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of Ad supported television channels.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfAdSupportedTelevisionChannels1
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of connected television applications.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfConnectedTelevisionApplications1
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of FM radio station.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfFMRadioStation
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of full power television stations owned, operated, programmed or provided sales and other services.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfFullPowerTelevisionStationsOwnedOperatedProgrammedOrProvidedSalesAndOtherServices
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of local websites.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfLocalWebsites
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of mobile applications.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfMobileApplications
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of multicast network services owned and operated.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfMulticastNetworkServicesOwnedAndOperated
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of radio station.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfRadioStation
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of states.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfStates
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of generally recognized television markets, or Designated Market Areas (DMA's), in which the Company's stations broadcast.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfTelevisionMarkets
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of television stations owned by consolidated VIEs.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfTelevisionStationsOwnedByConsolidatedVIEs
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of television stations owned by unconsolidated VIEs.

+ References

No definition available.

+ Details

Name:	nxst_NumberOfTelevisionStationsOwnedByUnconsolidatedVIEs
Namespace Prefix:	nxst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Organization and business operations.

+ References

No definition available.

+ Details

Name:	nxst_OrganizationAndBusinessOperationsLineItems
Namespace Prefix:	nxst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of US television house hold reach before applying FCCUHF discount.

+ References

No definition available.

+ Details

Name:	nxst_PercentageOfUSTelevisionHouseHoldReachBeforeApplyingFCCUHFDiscount
Namespace Prefix:	nxst_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when acquisition agreement is executed in business combination, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479328/805-10-50-7

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 25
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479405/805-10-25-7

+ Details

Name:	us-gaap_BusinessAcquisitionDateOfAcquisitionAgreement1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Per share price of saleable stock paid or offered to be paid by acquirer in business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479299/805-40-55-10

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479328/805-10-50-8

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479303/805-10-55-42

+ Details

Name:	us-gaap_BusinessAcquisitionSharePrice
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of expense for acquisition-related cost incurred to effect business combination. Includes, but is not limited to, finder's fee; advisory, legal, accounting, valuation, and other professional and consulting fees; and general administrative cost, including cost of maintaining internal acquisition department.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479328/805-10-50-7

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 25
-Paragraph 23
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479405/805-10-25-23

+ Details

Name:	us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 41
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479303/805-10-55-41

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479328/805-10-50-8

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-2

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-1

+ Details

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-28

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	srt_OwnershipAxis=nxst_TheCwNetworkLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=nxst_TVFoodNetworkMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=nxst_TEGNAIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Organization and Business Operations (Details) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	Mar. 19, 2026 USD ($) RadioStation Market $ / shares	Jun. 30, 2026 USD ($) Channel State Application Market NetworkService TelevisionStation RadioStation Website	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) Channel State Application Market NetworkService TelevisionStation RadioStation Website	Jun. 30, 2025 USD ($)	Apr. 27, 2026	Sep. 30, 2022
Organization And Business Operations [Line Items]
Number of full power television stations owned, operated, programmed or provided sales and other services \| TelevisionStation		265		265
Number of markets in which the Company's stations broadcast \| Market		132		132
Number of local websites \| Website		176		176
Number of mobile applications \| Application		292		292
Number of states in which the Company's stations broadcast \| State		44		44
Number of AM radio station \| RadioStation		2		2
Number of FM radio station \| RadioStation		1		1
Percentage of US television household reach		80.00%		80.00%
Number of television stations owned by consolidated VIEs \| TelevisionStation		35		35
Number of television stations owned by unconsolidated VIEs \| TelevisionStation		2		2
Number of multicast network services owned and operated \| NetworkService		4		4
Connected television application \| Application		160		160
Number of ad supported television channels \| Channel		54		54
Transaction costs \| $		$ (53)	$ (10)	$ (95)	$ (10)
The CW Network, LLC [Member]
Organization And Business Operations [Line Items]
Percentage of outstanding equity acquired		81.10%		81.10%			75.00%
TV Food Network [Member]
Organization And Business Operations [Line Items]
Ownership stake		31.30%		31.30%
TEGNA Inc [Member]
Organization And Business Operations [Line Items]
Number of markets in which the Company's stations broadcast \| Market	51
Number of radio station \| RadioStation	2
Percentage of US television household reach						80.00%
Merger consideration \| $ / shares	$ 22
Estimated total purchase price \| $	$ 3,700
Transaction costs \| $		$ 52		$ 90
Merger agreement date				Aug. 18, 2025