CHAPTER 11 BANKRUPTCY FILING - Liabilities subject to compromise (Details) $ in Thousands	Mar. 29, 2020 USD ($)
Liabilities subject to compromise
Accounts payable	$ 16,578
Accrued compensation	312
Other accrued liabilities	1,669
Other long-term liabilities	3,237
Accounts payable, accrued, and other liabilities	21,796
Debt subject to compromise	440,418
Accrued interest on debt subject to compromise	18,112
Long-term debt and accrued interest	458,530
Pension and postretirement obligations	642,562
Liabilities subject to compromise	$ 1,122,888