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Self-Insurance	12 Months Ended
Self-Insurance	Dec. 31, 2020
Self Insurance Reserves [Abstract]
Self-Insurance	Self-Insurance The Company obtains various insurance coverages, including general and professional liability and workers compensation programs, from commercial carriers at stated amounts as defined in the applicable policy. Losses related to deductible amounts are accrued based on the Company's estimate of expected losses plus incurred but not reported claims. As of December 31, 2020 and 2019, the Company accrued reserves of $153.0 million and $155.8 million, respectively, under the Company's insurance programs, of which $88.4 million and $92.5 million is classified as long-term liabilities as of December 31, 2020 and 2019, respectively. As of December 31, 2020 and 2019, the Company accrued $18.0 million and $22.7 million, respectively, of estimated amounts receivable from the insurance companies under these insurance programs. The Company has secured self-insured retention risk under workers' compensation programs with restricted cash deposits of $21.9 million and $24.0 million as of December 31, 2020 and 2019, respectively. Letters of credit securing the programs aggregated to $61.3 million and $55.6 million as of December 31, 2020 and 2019, respectively. In addition, the Company also had deposits of $7.7 million and $12.3 million, as of December 31, 2020 and 2019, respectively, to fund claims paid under a high deductible, collateralized insurance policy. Effective December 31, 2020, the Company began using its wholly-owned captive insurance company for the purpose of insuring certain portions of its risk retention under its general and professional liability insurance programs.