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	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Fair Value, Assets held for sale		$ (4,518)
Cost, Excluding assets held for sale		303,438
Gross Unrealized Gains, Excluding assets held for sale		24,228
Gross Unrealized Losses, Excluding assets held for sale		(10,920)
Fair Value, Excluding assets held for sale		312,228
Short-term investments | Level 1
Debt Securities, Available-for-sale [Line Items]
Cost	$ 25,674	21,217
Fair Value	25,674	21,217
Fixed maturities
Debt Securities, Available-for-sale [Line Items]
Cost	12	986
Gross Unrealized Gains	2	96
Gross Unrealized Losses		(72)
Fair Value	14	1,010
Fixed maturities | Level 2 | U.S. governmental securities
Debt Securities, Available-for-sale [Line Items]
Cost	12	48
Gross Unrealized Gains	2	4
Fair Value	14	52
Fixed maturities | Level 2 | Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Cost		505
Gross Unrealized Gains		92
Gross Unrealized Losses		(44)
Fair Value		553
Fixed maturities | Level 2 | Other Debt Securities
Debt Securities, Available-for-sale [Line Items]
Cost		433
Gross Unrealized Losses		(28)
Fair Value		405
Mutual funds - debt securities | Level 1
Debt Securities, Available-for-sale [Line Items]
Cost	2,306	2,386
Gross Unrealized Gains	28	62
Gross Unrealized Losses	(35)	(9)
Fair Value	2,299	2,439
Mutual funds - equity securities | Level 1
Debt Securities, Available-for-sale [Line Items]
Cost	3,894	9,240
Gross Unrealized Gains	1,341	1,244
Gross Unrealized Losses	(63)	(7)
Fair Value	5,172	10,477
Other investment funds
Debt Securities, Available-for-sale [Line Items]
Cost	285,826	247,845
Gross Unrealized Gains	14,554	21,952
Gross Unrealized Losses	(2,776)	(10,813)
Fair Value	297,604	258,984
Equity securities | Level 1
Debt Securities, Available-for-sale [Line Items]
Cost	6,817	21,748
Gross Unrealized Gains	1,661	873
Gross Unrealized Losses	(113)	(19)
Fair Value	8,365	22,602
Other invested assets | Level 2
Debt Securities, Available-for-sale [Line Items]
Cost	9	16
Gross Unrealized Gains	1	1
Fair Value	10	17
Total Investments
Debt Securities, Available-for-sale [Line Items]
Cost	324,538	303,438
Gross Unrealized Gains	17,587	24,228
Gross Unrealized Losses	(2,987)	(10,920)
Fair Value	$ 339,138	$ 316,746