Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Insurance (Details)

v3.21.1
Summary of Significant Accounting Policies - Insurance (Details)
Mar. 31, 2021
USD ($)
Accounting Policies [Abstract]  
Employer's liability claims subject to deductible per occurrence $ 5,000,000.0
Worker's compensation claims per occurrence 5,000,000.0
Auto liability insurance claims deductible 15,000,000.0
General liability insurance claims deductible 15,000,000.0
Employee health care benefit plans subject to deductible per claimant $ 800,000