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Reinsurance - Narrative (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024 USD ($) reinsurer	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) reinsurer	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) reinsurer	Dec. 31, 2022 reinsurer	Jan. 01, 2024
Effects of Reinsurance [Line Items]
Loss on uncollectible accounts in period	$ 0	$ 0	$ 0	$ 0
Provision for sliding scale commission	31,100,000		31,100,000		$ 23,800,000
Receivable for sliding scale commission	2,500,000		2,500,000		5,800,000
Provision for loss participation feature	$ 42,200,000		$ 42,200,000		$ 112,800,000
Maximum | Florida Hurricane Catastrophe Fund | Florida
Effects of Reinsurance [Line Items]
Reimbursement protection, percentage (as a percent)	90.00%		90.00%
Reinsurance Policy, Type [Axis]: Non-Proportional Reinsurance — Hippo Home Insurance Program
Effects of Reinsurance [Line Items]
Reinsurance, number of participating reinsurers | reinsurer	19		19		14
Excess retention, year return period, ratio	0.004		0.004
Reinsurance Policy, Type [Axis]: Non-Proportional Reinsurance — Hippo Home Insurance Program | Maximum
Effects of Reinsurance [Line Items]
Excess retention, percentage (as a percent)			11.00%		0.40%
Reinsurance Policy, Type [Axis]: Other Reinsurance - Corporate Catastrophe Excess of Loss Catastrophe Coverage
Effects of Reinsurance [Line Items]
Excess retention, year return period, ratio	0.004		0.004
Reinsurance Policy, Type [Axis]: Other Reinsurance - Corporate Excess of Loss Catastrophe Coverage
Effects of Reinsurance [Line Items]
Excess retention, year return period, ratio	0.004		0.004
Reinsurance Policy, Type [Axis]: Other Reinsurance - Corporate Excess of Loss Catastrophe Coverage | Maximum
Effects of Reinsurance [Line Items]
Excess retention, percentage (as a percent)				0.40%
Reinsurance Policy, Type [Axis]: Other Reinsurance - Proportional and Excess of Loss Catastrophe Coverage | Maximum
Effects of Reinsurance [Line Items]
Ceded risk, percentage (as a percent)			100.00%
Reinsurance Policy, Type [Axis]: Other Reinsurance - Proportional and Excess of Loss Catastrophe Coverage | Minimum
Effects of Reinsurance [Line Items]
Ceded risk, percentage (as a percent)			75.00%
Reinsurance Policy, Type [Axis]: Proportional Reinsurance Treaties — Hippo Home Insurance Program
Effects of Reinsurance [Line Items]
Reinsurance, number of third-party reinsurers | reinsurer					6	11
Reinsured risk, percentage (as a percent)					40.00%	10.00%
Reinsured risk, cut off percentage (as a percent)							25.00%
Reinsurance Policy, Type [Axis]: Proportional Reinsurance Treaties — Hippo Home Insurance Program, Business Channel
Effects of Reinsurance [Line Items]
Reinsurance, number of third-party reinsurers | reinsurer	1		1		3
Reinsured risk, percentage (as a percent)			85.00%		58.00%

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479838/944-20-50-3

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479838/944-20-50-3

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