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
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=109250915&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
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13537-108611

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

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

SEGMENT INFORMATION (Narrative) (Details)	3 Months Ended	9 Months Ended	12 Months Ended
SEGMENT INFORMATION (Narrative) (Details)	Dec. 31, 2017 segment	Sep. 17, 2017 segment	Dec. 31, 2018 segment location
Segment Reporting Information [Line Items]
Number of reportable business segments \| segment	1	2	1
Continuing Operations - Property and Casualty Insurance
Segment Reporting Information [Line Items]
Number of domestic business locations \| location			6
Continuing Operations - Property and Casualty Insurance \| Commercial Lines \| Product Concentration Risk \| Sales Revenue, Segment
Segment Reporting Information [Line Items]
Percentage of insurance in force			93.10%
Continuing Operations - Property and Casualty Insurance \| Personal Lines \| Product Concentration Risk \| Sales Revenue, Segment
Segment Reporting Information [Line Items]
Percentage of insurance in force			6.90%