Supplementary Information Level 4 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash and cash equivalents:
Cash	$ 260,750	$ 192,398
Commercial paper and temporary investments	7,876	38,459
Cash and cash equivalents	268,626	230,857
Receivables, net:
Receivables, net	106,051	92,939
Other current assets:
Income tax receivable	13,635	3,725
Prepaid insurance	4,583	4,598
Restricted Cash and Cash Equivalents, Current	7,847	5,573
Other Assets, Current	14,383	14,531
Other	40,448	28,427
Cemetery Property, Undeveloped Land	1,297,453	1,240,387
Cemetery Property, Developed	603,391	638,953
Cemetery property, at cost	1,900,844	1,879,340
Land	701,337	678,421
Buildings and Improvements, Gross	2,445,913	2,295,113
Machinery and Equipment, Gross	661,486	597,110
Leasehold Improvements, Gross	42,387	40,691
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	325,823	318,634
Property, Plant and Equipment, Gross	4,176,946	3,929,969
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(1,730,385)	(1,623,815)
Finance Lease, Right-of-Use Asset, Accumulated Amortization	194,403	172,490
Property and equipment, net	2,252,158	2,133,664
Intangible Assets, Net (Excluding Goodwill)	471,715	441,389
Restricted Cash and Cash Equivalents, Noncurrent	2,082	2,180
Non-current deferred tax assets	6,171	535
Financing Receivable, after Allowance for Credit Loss, Noncurrent	5,260	6,432
Financing Receivable, Allowance for Credit Loss, Noncurrent	4,577	6,902
Operating Lease, Right-of-Use Asset	53,685	54,764
Other Assets, Miscellaneous, Noncurrent	57,595	60,923
Cash Surrender Value of Life Insurance	225,857	202,120
Accounts payable and accrued liabilities:
Other Liabilities	10,698	29,747
Accounts payable	204,094	186,401
Accrued compensation	184,007	147,366
Interest Payable, Current	22,565	20,468
Accrual for Taxes Other than Income Taxes, Current	14,980	14,394
Self Insurance Reserve, Current	94,268	92,760
Bank Overdrafts	39,043	32,352
Other liabilities	438,903	420,039
Operating Lease, Liability, Current	8,049	8,584
Other Accrued Liabilities, Current	92,488	73,623
Accounts payable and accrued liabilities	659,494	575,948
Liability, Defined Benefit Pension Plan, Noncurrent	19,950	22,203
Deferred Compensation Liability, Classified, Noncurrent	201,401	174,721
Tax liability	2,156	2,104
Payable to ECF	110,279	96,828
Deferred charges and other assets	1,169,813	1,080,053
Operating Lease, Liability, Noncurrent	48,178	48,656
Deferred incremental selling costs	347,448	311,710
Capital Expenditures Incurred but Not yet Paid		(6,417)
Change in Capital Expenditures Incurred but Not Yet Paid	3,201		$ 4,435
Options exercised by attestation	(323)	0	0
Shares repurchased for Options exercised by Attestation	323	0	$ 0
Customer Refund Liability, Noncurrent	46,241	45,780
Non-current deferred tax liabilities	$ (437,902)	$ (437,308)