Acquisitions - Narrative (Details)		12 Months Ended
	Nov. 19, 2019 USD ($) brand organization	Dec. 31, 2019 USD ($) publication business agency newspaper	Sep. 30, 2020 USD ($) state
Business Acquisition
Number of states in which entity operates (states) | state			46
Contingent consideration payable			$ 0
Gannett Co., Inc
Business Acquisition
Number of media organizations (organization) | organization	109
Number of media brands, more than (brands) | brand	140
Aggregate purchase price	$ 1,300,000,000
Certain Publications and Businesses
Business Acquisition
Aggregate purchase price		$ 53,400,000
Ownership interest acquired		58.00%
Number of daily newspapers (newspaper) | newspaper		11
Number of weekly publications (publication) | publication		11
Number of shoppers (shopper) | agency		9
Number of events production businesses (business) | business		5
Certain Publications and Businesses | Third Party
Business Acquisition
Ownership interest acquired		42.00%
U.S.
Business Acquisition
Number of states in which entity operates (states) | state			34