PERPETUAL CARE TRUSTS - Aging of Unrealized Losses on Investments in Fixed Maturities and Equity Securities Held in Perpetual Care Trusts (Detail) - Variable Interest Entity, Primary Beneficiary - Perpetual care trusts - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	$ 29,882	$ 29,019
12 Months or more Fair Value	97	3,405
Total Fair Value	29,979	32,424
Less than 12 months Unrealized Losses	2,582	2,973
12 Months or more Unrealized Losses	83	14
Total Unrealized Losses	2,665	2,987
Fixed maturities
Investments, Unrealized Loss Position [Line Items]
12 Months or more Fair Value		2,949
Total Fair Value		2,949
Fixed maturities | U.S. governmental securities
Investments, Unrealized Loss Position [Line Items]
12 Months or more Fair Value		990
Total Fair Value		990
Fixed maturities | Corporate debt securities
Investments, Unrealized Loss Position [Line Items]
12 Months or more Fair Value		1,959
Total Fair Value		1,959
Mutual funds - debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value		863
12 Months or more Fair Value	21	454
Total Fair Value	21	1,317
Less than 12 months Unrealized Losses		25
12 Months or more Unrealized Losses	1	10
Total Unrealized Losses	1	35
Mutual funds - equity securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value		661
12 Months or more Fair Value	1	1
Total Fair Value	1	662
Less than 12 months Unrealized Losses		60
12 Months or more Unrealized Losses	3	3
Total Unrealized Losses	3	63
Other investment funds
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	29,605	26,533
Total Fair Value	29,605	26,533
Less than 12 months Unrealized Losses	2,479	2,776
Total Unrealized Losses	2,479	2,776
Equity securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	277	962
12 Months or more Fair Value	75	1
Total Fair Value	352	963
Less than 12 months Unrealized Losses	103	112
12 Months or more Unrealized Losses	79	1
Total Unrealized Losses	$ 182	$ 113