GENERAL - Additional Information (Detail) $ / shares in Units, $ in Thousands			1 Months Ended	12 Months Ended
	Apr. 01, 2020 USD ($)	May 10, 2019 USD ($)	Oct. 31, 2019 USD ($) Property	Dec. 31, 2019 USD ($) Property State Segment shares	Dec. 31, 2018 USD ($)	Jun. 27, 2019 USD ($) $ / shares shares	Jan. 01, 2019 USD ($)
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Management lease loss				$ (2,100)
Cash and cash equivalents				34,867	$ 18,147
Restricted cash				$ 21,900	0
Refundable deposit received for divestitures of property			$ 5,000
Divestiture, number of property in non-binding letter | Property			1
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				$ 5,900	7,500
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				$ 9,200	$ 6,900
Operating lease ROU asset				10,570
ASC 842
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Reclassification from Intangible assets to other assets for below market lease intangibles							$ 1,100
Reclassification from accounts payable and accrued liabilities to other assets for deferred gain on sale leaseback transaction							100
Reclassification from other long term liabilities to other assets for deferred gain on sale leaseback transaction							200
Reclassification from accounts payable and accrued liabilities to other assets for rent							300
Reclassification from other long term Liabilities to other assets for rent							3,500
Increase in other assets for operating lease right of use assets							15,300
Increase in accounts payable and accrued liabilities for operating lease liabilities							2,200
Increase in other long term liabilities for operating lease liabilities.							13,100
Operating lease ROU asset							12,300
Operating lease liability				$ 13,517			$ 15,300
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
Senior Secured Notes
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Long-term debt, gross				$ 380,619
Fixed interest rate to be paid per annum in cash plus				7.50%
Senior Secured Notes | Option Through January 30, 2022 - Payable in Kind
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Debt instrument				4.00%		4.00%
Senior Secured Notes | Private Placement
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Long-term debt, gross				$ 385,000		$ 385,000
Senior Secured Notes | Private Placement | 9.875% notes, due 2024
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Debt instrument				9.875%		9.875%
Senior Secured Notes | Private Placement | 11.500% notes, due 2024
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Debt instrument				11.50%		11.50%
Senior Notes
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Preferred units, sold | shares				52,083,333
Preferred unit, aggregate purchase price				$ 57,500
Senior Notes | Private Placement
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Long-term debt, gross				$ 385,000
Other Losses, Net
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Management lease loss		$ 2,100
StoneMor Operating LLC
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Ownership percentage subsidiaries by the parent				100.00%	100.00%
C-Corporation Conversion | Partnership and LP Sub
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
General partner ownership interest				100.00%
C-Corporation Conversion | Stonemor GP Holdings LLC
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Contribution of common units | shares				5,099,969
Series A Purchase Agreement | Series A Redeemable Convertible Preferred Unit
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Preferred units, sold | shares						52,083,333
Preferred unit sold, price per share | $ / shares						$ 1.1040
Preferred unit, liquidation preference discount percentage						8.00%
Preferred unit, aggregate purchase price						$ 57,500
Axar Commitment Agreement | Rights Offering | Maximum | Subsequent Event
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Proceeds from the contemplated rights offering	$ 17,000
Cemetery
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property				30
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				14
US and Puerto Rico | Cemetery
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property				321
Number of states | State				27
US and Puerto Rico | Cemetery | Wholly Owned Properties
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property				291
US and Puerto Rico | Cemetery | Managed Properties
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property				30
US and Puerto Rico | Funeral Home
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property				90
Number of states | State				17
US and Puerto Rico | Funeral Home | Cemetery Property
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of operating locations | Property				42