Acquisitions and Dispositions - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 30, 2018 USD ($)
Business Combinations [Line Items]
Contingent consideration	$ 3,256
2018 Acquisitions [Member]
Business Combinations [Line Items]
Number of business publications acquired	7
Number of daily newspapers acquired	8
Number of weekly publications acquired	16
Number of shoppers acquired	1
Contingent consideration	$ 3,256
Purchase price including working capital	$ 205,720
Noncontrolling interest, the Company's ownership percent	80.00%
Noncontrolling Interest, noncontrolling owners ownership percent	20.00%
Acquisition related costs recognized in selling, general, and administrative expense	$ 1,532
Goodwill expected to be tax deductible	$ 72,012
2017 Acquisitions [Member]
Business Combinations [Line Items]
Number of business publications acquired	4
Number of daily newspapers acquired	22
Number of weekly publications acquired	34
Number of shoppers acquired	24
Purchase price including working capital	$ 165,053
Acquisition related costs recognized in selling, general, and administrative expense	978
Goodwill expected to be tax deductible	$ 37,652