PERPETUAL CARE TRUSTS - Cost and Market Value Associated with Assets Held in Perpetual Care Trusts (Detail) - Variable Interest Entity, Primary Beneficiary - Perpetual care trusts - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Short-term investments | Level 1
Debt Securities, Available-for-sale [Line Items]
Cost	$ 13,422	$ 25,674
Fair Value	13,422	25,674
Fixed maturities
Debt Securities, Available-for-sale [Line Items]
Cost	10	12
Gross Unrealized Gains	1	2
Fair Value	11	14
Fixed maturities | Level 2 | U.S. governmental securities
Debt Securities, Available-for-sale [Line Items]
Cost	10	12
Gross Unrealized Gains	1	2
Fair Value	11	14
Mutual funds - debt securities | Level 1
Debt Securities, Available-for-sale [Line Items]
Cost	1,904	2,306
Gross Unrealized Gains	6	28
Gross Unrealized Losses	(317)	(35)
Fair Value	1,593	2,299
Mutual funds - equity securities | Level 1
Debt Securities, Available-for-sale [Line Items]
Cost	4,078	3,894
Gross Unrealized Gains	584	1,341
Gross Unrealized Losses	(297)	(63)
Fair Value	4,365	5,172
Other investment funds
Debt Securities, Available-for-sale [Line Items]
Cost	300,218	285,826
Gross Unrealized Gains	22,585	14,554
Gross Unrealized Losses	(2,393)	(2,776)
Fair Value	320,410	297,604
Equity securities | Level 1
Debt Securities, Available-for-sale [Line Items]
Cost	7,026	6,817
Gross Unrealized Gains	2,443	1,661
Gross Unrealized Losses	(130)	(113)
Fair Value	9,339	8,365
Other invested assets | Level 2
Debt Securities, Available-for-sale [Line Items]
Cost	9	9
Gross Unrealized Gains	1	1
Fair Value	10	10
Total Investments
Debt Securities, Available-for-sale [Line Items]
Cost	326,667	324,538
Gross Unrealized Gains	25,620	17,587
Gross Unrealized Losses	(3,137)	(2,987)
Fair Value	$ 349,150	$ 339,138