For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
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-Subparagraph (a)
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

SIGNIFICANT RISKS AND CONCENTRATIONS - Additional Information (Detail)	3 Months Ended	12 Months Ended
	Mar. 31, 2020 Segment	Dec. 31, 2019 Location Segment	Dec. 31, 2018 Location
Concentration Risk [Line Items]
Number of reportable segments \| Segment	2	2
Number of locations \| Location		5	6
Revenue \| Operations Segment \| Cemetery
Concentration Risk [Line Items]
Concentration risk, percentage		82.00%	83.00%
Sales \| Operations Segment \| Cemetery
Concentration Risk [Line Items]
Concentration risk, percentage		68.00%	68.00%
Revenue \| Operations Segment
Concentration Risk [Line Items]
Concentration risk, percentage		49.00%	52.00%