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Summary of Significant Accounting Policies, Ins (Details)
Dec. 31, 2019
USD ($)
Insurance Reserves  
Self-insurance limit, Employee practices liability $ 250,000
Self-insurance limit, Employee practices liability Class Action 2,000,000
Self-insurance limit, Workers compensation 350,000
Self-insurance limit, General liability 500,000
Self-insurance limit, Property 250,000
Self-insurance limit, Employee healthcare $ 350,000