Components of Deferred Taxes (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Self-insurance reserves	$ 97,024	$ 75,648
Compensation accruals	77,917	71,054
Doubtful accounts and other reserves	127,876	94,295
Other currently non-deductible accrued liabilities	31,240	61,634
Operating lease liabilities	86,652	89,865
State and foreign net operating loss carryforwards and other state and foreign deferred tax assets	79,499	81,036
Net pension liabilities – OCI only	1,014	1,356
Deferred income tax assets, Gross	501,222	474,888
Valuation Allowance	(62,356)	(68,003)
Total deferred income taxes	438,866	406,885
Depreciable and amortizable assets	303,079	296,588
Right of use assets-operating leases	86,269	89,493
Other liabilities	3,811	3,697
Deferred income tax liabilities, Gross	$ 393,159	$ 389,778