Name:	hx_EquitySecuritiesWithoutReadilyDeterminableFairValueGrossAmount
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Period Type:	instant

Original amount of investment in equity security without readily determinable fair value at the acquisition date.

No definition available.

Name:	hx_EquitySecuritiesWithoutReadilyDeterminableFairValueOriginalCost
Namespace Prefix:	hx_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Amount of liability recognized arising from investments, expected to be settled within one year or the normal operating cycle, if longer.

No definition available.

Name:	hx_InvestmentsAcquisitionPricePayable
Namespace Prefix:	hx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Percentage of equity acquired.

No definition available.

Name:	hx_PercentageOfEquityAcquired
Namespace Prefix:	hx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Amount of investment in equity security without readily determinable fair value.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714

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Period Type:	instant

Amount of cumulative impairment loss on investment in equity security without readily determinable fair value.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714

Name:	us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossCumulativeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 8A
-URI http://asc.fasb.org/extlink&oid=118954083&loc=SL6284422-111562

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.