Disposal of Assets (Narrative) (Details) $ in Thousands		3 Months Ended			9 Months Ended	12 Months Ended
	May 17, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 customer	Dec. 31, 2019 customer	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Gain) loss on sale/disposal of assets, net						$ 24,540
Number of local and national commercial print customers | customer				30	5
Proceeds from sale of real estate assets						$ 4,597
Assets held for sale							$ 1,089
Dallas, Texas [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Gain) loss on sale/disposal of assets, net			$ (25,908)
Charter DMN Holdings, LP [Member] | Dallas, Texas [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of real estate assets, amount	$ 28,000		$ 28,000
Proceeds from sale of real estate assets	4,597
Real estate assets selling costs	1,000
Note receivable	$ 22,400
Notes receivable term	2 years
Additional contingency payment receivable if certain conditions are met	$ 1,000
Interest rate on promissory note during first year						3.50%
Interest rate on promissory note during second year						4.50%
Newspaper Production Assets and Publishing Software [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Gain) loss on sale/disposal of assets, net		$ 1,362