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Insurance Operations - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2017 USD ($)
UPCIC [Member]
Statutory Accounting Practices [Line Items]
Statutory ordinary dividend capacity	$ 57,700,000
UPCIC and APPCIC [Member]
Statutory Accounting Practices [Line Items]
Dividend paid to UVECF	$ 0
Minimum capitalization rate	10.00%
Minimum capitalization amount	$ 10,000,000
Minimum capital required	Greater of ten percent of the insurer’s total liabilities or $10.0 million.

X

- Definition

For insurance companies, a description of the minimum regulatory capital requirements imposed by state insurance regulators, and restrictions on dividend payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 505
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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X

- Definition

Amount of dividends that can be declared or paid without approval of regulatory agency.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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X

- Definition

Amount of statutory capital required to be maintained as of the balance sheet date under prescribed or permitted statutory accounting practices.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529

+ Details

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Data Type:	xbrli:monetaryItemType
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X

- Definition

Represents the dividend amount paid by an insurance company to their immediate parent company.

+ References

No definition available.

+ Details

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X

- Definition

Represents the minimum amount of capitalization required by regulatory agencies as a percentage of total liabilities.

+ References

No definition available.

+ Details

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X

- Details

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- Details

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