Subsequent Events (Details) - Credit Agreement - Revolving Credit Facility - Subsequent Event	Jul. 19, 2017 USD ($)
Subsequent Event [Line Items]
Revolving credit facility	$ 30,000,000.0
Revolving credit facility additional aggregate incremental amount	$ 20,000,000
Federal Funds Effective Swap Rate
Subsequent Event [Line Items]
Basis spread on revolving credit facility	0.50%
London Interbank Offered Rate (LIBOR)
Subsequent Event [Line Items]
Basis spread on revolving credit facility	1.00%
Base Rate
Subsequent Event [Line Items]
Basis spread on revolving credit facility	0.00%
Base Rate \| Minimum
Subsequent Event [Line Items]
Basis spread on revolving credit facility	0.75%
Base Rate \| Maximum
Subsequent Event [Line Items]
Basis spread on revolving credit facility	1.25%
Adjusted LIBOR \| Minimum
Subsequent Event [Line Items]
Basis spread on revolving credit facility	1.75%
Adjusted LIBOR \| Maximum
Subsequent Event [Line Items]
Basis spread on revolving credit facility	2.25%

Line of Credit Facility, Additional Incremental Term Loan Amount

No definition available.

Name:	hiiq_LineofCreditFacilityAdditionalIncrementalTermLoanAmount
Namespace Prefix:	hiiq_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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