PERPETUAL CARE TRUSTS - Additional Information (Detail) - Variable Interest Entity, Primary Beneficiary - Perpetual care trusts	6 Months Ended
	Jun. 30, 2021 USD ($) security	Jun. 30, 2020 USD ($) security
Debt Securities, Available-for-sale [Line Items]
Purchases of available for sale securities	$ 19,000,000.0	$ 9,300,000
Sales, maturities and paydowns of available for sale securities	11,100,000	22,000,000.0
Other than temporary impairments loss	$ 55,000	$ 930,000
Other Than Temporarily Impaired Securities
Debt Securities, Available-for-sale [Line Items]
Number of securities that incurred other than temporary impairment losses | security	6	2
Trust assets, cost	$ 84,000	$ 9,400,000
Trust assets, fair value	30,000	8,500,000
Other than temporary impairments loss	$ 54,000	$ 900,000