SIGNIFICANT ACCOUNTING POLICIES - PP&E, Intangibles (Details)	3 Months Ended
	Jul. 01, 2018 USD ($)	Apr. 01, 2018 USD ($) segment company	Mar. 26, 2017 USD ($)
Property, plant and equipment
Depreciation expense		$ 7,197,000	$ 7,721,000
Assets held for sale
Impairment charge of assets held for sale		$ 100,000
Number of media companies with assets held for sale | company		2
Intangible Assets and Goodwill
Goodwill impairment charge		$ 0	0
Impairment charge of newspaper masthead		0	0
Intangible assets subject to amortization, net
Impairment of long-lived assets subject to amortization		$ 0	0
Segment reporting
Number of operating segments | segment		2
Other asset write-downs
Property, plant and equipment
Write-down of non-newsprint inventory			$ 2,000,000
Forecast
Financial Obligations
Increase in financing obligations	$ 14,600,000