PERPETUAL CARE TRUSTS - Additional Information (Detail) - Variable Interest Entity, Primary Beneficiary - Perpetual care trusts $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) security	Dec. 31, 2018 USD ($) security
Debt Securities, Available-for-sale [Line Items]
Purchases of available for sale securities	$ 46.4	$ 59.4
Sales, maturities and paydowns of available for sale securities	$ 29.0	$ 51.1
Other Than Temporarily Impaired Securities
Debt Securities, Available-for-sale [Line Items]
Number of securities that incurred other than temporary impairment losses | security	79	176
Trust assets, cost	$ 85.7	$ 181.4
Trust assets, fair value	81.8	163.3
Other than temporary impairments loss	$ 3.9	$ 18.1