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Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 27, 2020
Mar. 31, 2020
Mar. 31, 2019
Operating Loss Carryforwards [Line Items]      
Income tax holiday, description   As a limited partnership, we are not subject to federal and state income taxes. However, our corporate subsidiaries are subject to income taxes. Income tax attributable to our taxable income (including any dividend income from our corporate subsidiaries), which may differ significantly from income for financial statement purposes, is assessed at the individual limited partner unitholder level. We are subject to a statutory requirement that non-qualifying income, as defined by the Internal Revenue Code, cannot exceed 10% of total gross income for the calendar year. If non-qualifying income exceeds this statutory limit, we would be taxed as a corporation. The non-qualifying income did not exceed the statutory limit in any period presented.  
CARES ACT 2020 aid carryback of net operating losses period 5 years    
CARES ACT 2020 aid limitation on use of net operating losses 80.00%    
Income tax (benefit) expense   $ (32) $ 149
Maximum [Member]      
Operating Loss Carryforwards [Line Items]      
Limited partnership percentage of non qualifying income to gross income   10.00%  
CARES ACT 2020 aid increases in adjusted taxable income limitation 50.00%    
Minimum [Member]      
Operating Loss Carryforwards [Line Items]      
CARES ACT 2020 aid increases in adjusted taxable income limitation 30.00%