COMMITMENTS AND CONTINGENCIES - Fixed Rent for Cemeteries (Detail) - Two Thousand Fourteen Acquisitions Member $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($)
Lease Years 1-5
Management Agreement Future Minimum Payments Due [Line Items]
Ground Lease Payments Per Year	$ 0
Lease Years 6-20
Management Agreement Future Minimum Payments Due [Line Items]
Ground Lease Payments Per Year	1,000,000
Lease Years 21-25
Management Agreement Future Minimum Payments Due [Line Items]
Ground Lease Payments Per Year	1,200,000
Lease Years 26- 35
Management Agreement Future Minimum Payments Due [Line Items]
Ground Lease Payments Per Year	1,500,000
Lease Years 36-60
Management Agreement Future Minimum Payments Due [Line Items]
Ground Lease Payments Per Year	$ 0