XML 132 R116.htm IDEA: XBRL DOCUMENT v3.20.4
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Benefit (charge) within operating expense $ (18,000) $ (18,000) $ (1,000)
Accounts receivable allowance      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 22,761 17,182 13,847
Charged to Earnings 34,191 23,003 10,890
Transferred from Other Accounts 0 0 0
Deductions 13,928 17,424 7,555
Balance at End of Period 43,024 22,761 17,182
Self-insurance accruals      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 410,985 357,526 348,612
Charged to Earnings 426,065 436,148 359,528
Transferred from Other Accounts 88,928 86,832 82,904
Deductions 482,363 469,521 433,518
Balance at End of Period 443,615 410,985 357,526
Valuation allowance on deferred tax assets      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 17,577 16,186 18,667
Charged to Earnings 25,510 1,906 (534)
Transferred from Other Accounts 0 0 0
Deductions 1,934 515 1,947
Balance at End of Period $ 41,153 $ 17,577 $ 16,186