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GEOGRAPHICAL BREAKDOWN OF GROSS WRITTEN PREMIUM (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Effects of Reinsurance [Line Items]
Total	$ 187.2	$ 202.5
Assumed	13.7	0.0
Texas
Effects of Reinsurance [Line Items]
Total	37.3	43.0
Georgia
Effects of Reinsurance [Line Items]
Total	18.8	19.0
Louisiana
Effects of Reinsurance [Line Items]
Total	10.7	10.3
Colorado
Effects of Reinsurance [Line Items]
Total	10.7	8.9
Pennsylvania
Effects of Reinsurance [Line Items]
Total	10.0	10.4
Utah
Effects of Reinsurance [Line Items]
Total	9.0	8.6
Nevada
Effects of Reinsurance [Line Items]
Total	8.7	8.3
South Carolina
Effects of Reinsurance [Line Items]
Total	7.1	6.1
Oklahoma
Effects of Reinsurance [Line Items]
Total	6.3	6.6
Missouri
Effects of Reinsurance [Line Items]
Total	6.0	7.9
All others states
Effects of Reinsurance [Line Items]
Total	$ 62.6	$ 73.4
Geographic Concentration Risk | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	100.00%	100.00%
Geographic Concentration Risk | Texas | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	19.90%	21.20%
Geographic Concentration Risk | Georgia | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	10.00%	9.40%
Geographic Concentration Risk | Louisiana | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	5.70%	5.10%
Geographic Concentration Risk | Colorado | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	5.70%	4.40%
Geographic Concentration Risk | Pennsylvania | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	5.30%	5.10%
Geographic Concentration Risk | Utah | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	4.80%	4.20%
Geographic Concentration Risk | Nevada | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	4.60%	4.10%
Geographic Concentration Risk | South Carolina | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	3.80%	3.00%
Geographic Concentration Risk | Oklahoma | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	3.40%	3.30%
Geographic Concentration Risk | Missouri | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	3.20%	3.90%
Geographic Concentration Risk | All others states | Gross Written Premiums
Effects of Reinsurance [Line Items]
Concentration percentage	33.60%	36.30%

X

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Amount of written premiums assumed from other entities.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 605
-Section 50
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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