GENERAL - Additional Information (Detail) $ in Millions		12 Months Ended
	May 11, 2021 USD ($)	Dec. 31, 2021 USD ($) State Property Segment	Dec. 31, 2020 USD ($)
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Long-term debt, principal amount	$ 400.0
Debt instrument	8.50%
Gross proceeds from the sale of the senior secured notes	$ 389.9
Cash and cash equivalents		$ 83.9	$ 39.2
Restricted cash		$ 16.4	20.8
Investment income, contractual term		60 months
Debt instrument, variable rate		375.00%
Number of reportable segments | Segment		2
Accounts receivable average cancellation rate basis period		5 years
Inventories		$ 3.7	6.0
Lease renewal term description		Certain leases provide the Company with the option to renew for additional periods, with renewal terms that can extend the lease term for periods ranging from 1 to 30 years.
Advertising costs		$ 8.5	$ 6.3
Maximum
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Liquid investments purchased with an original maturity		3 months
Product sales, payment term		60 months
Lease renewal term		30 years
Minimum
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Lease renewal term		1 year
8.500% Senior Secured Notes due 2029
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Long-term debt, principal amount	$ 400.0
Debt instrument	8.50%	8.50%
Gross proceeds from the sale of the senior secured notes	$ 389.9
Senior Secured Notes
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Long-term debt, principal amount	$ 338.1
Senior Secured Notes | 9.875% notes, due 2024
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Debt instrument		9.875%
Senior Secured Notes | 11.500% notes, due 2024
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Debt instrument		11.50%
StoneMor Operating LLC
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Ownership percentage subsidiaries by the parent		100.00%
Cemetery
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property		29
Cemetery | Consolidated Properties
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property		16
Cemetery | Unconsolidated Properties
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property		13
US and Puerto Rico | Cemetery
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property		300
Number of states | State		24
US and Puerto Rico | Cemetery | Wholly Owned Properties
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property		271
US and Puerto Rico | Cemetery | Managed Properties
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property		29
US and Puerto Rico | Funeral Home
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property		69
Number of states | State		15
US and Puerto Rico | Funeral Home | Cemetery Property
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property		33