Asset coverage ratio

No definition available.

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- Definition

Excess tangible net worth

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Fee on the maximum amount available to be drawn under each letter of credit

+ References

No definition available.

+ Details

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- Definition

Increase of interest rate on all obligations under the revolving facility in the event of default

+ References

No definition available.

+ Details

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Namespace Prefix:	in_
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- Definition

Maximum Funded Debt To EBITDA

+ References

No definition available.

+ Details

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Namespace Prefix:	in_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Net income required in future for income covenant

+ References

No definition available.

+ Details

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Namespace Prefix:	in_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Pre tax income required in net income before tax covenant

+ References

No definition available.

+ Details

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Namespace Prefix:	in_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Definition

Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of debt outstanding by type or by instrument at that time.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

Reference 2: 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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Data Type:	xbrli:monetaryItemType
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- Definition

The effective interest rate during the reporting period.

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
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- Details

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- 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 Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

Reference 3: 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

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

The lowest amount of net worth (total assets minus total liabilities) required by secondary market investors or state-imposed regulatory mandates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Chapter 17

-Paragraph 54

-Subparagraph 3a

-IssueDate 2006-05-01

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (c)(a)

-URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998

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Revolving Credit Facility (Narrative) (Details) (USD $)			1 Months Ended	12 Months Ended				12 Months Ended			12 Months Ended
Revolving Credit Facility (Narrative) (Details) (USD $)	Dec. 31, 2011	Oct. 02, 2011	Dec. 21, 2011 Revolving Facility [Member]	Dec. 31, 2011 Revolving Facility [Member]	Mar. 03, 2011 Revolving Facility [Member]	Dec. 31, 2010 Revolving Facility [Member]	Sep. 27, 2007 Revolving Facility [Member]	Dec. 31, 2011 Minimum [Member] Revolving Facility [Member]	Dec. 31, 2011 Minimum [Member] Revolving Facility [Member] LIBOR Plus Applicable Margin [Member]	Dec. 31, 2011 Minimum [Member] Revolving Facility [Member] Bank's Prime Rate, Less Applicable Margin [Member]	Dec. 31, 2011 Maximum [Member] Revolving Facility [Member]	Dec. 31, 2011 Maximum [Member] Revolving Facility [Member] LIBOR Plus Applicable Margin [Member]	Dec. 31, 2011 Maximum [Member] Revolving Facility [Member] Bank's Prime Rate, Less Applicable Margin [Member]
Line of Credit Facility [Line Items]
Maximum amount available under the Revolving Facility			$ 150,000,000		$ 100,000,000		$ 50,000,000
Maturity date			Dec. 31, 2014
Current borrowing capacity				63,500,000		48,500,000
Borrowings under the Revolving Facility				85,000,000
Variable interest rate								1.25%	1.25%	0.25%	1.75%	1.75%	1.00%
Interest rate on borrowed funds				2.10%
Percentage of fee to be paid on amount drawn under letter of credit								1.25%			1.75%
Percentage of fee to be paid on unused portion of the New Facility								0.15%			0.25%
Unused portion of New Facility		63,500,000
Weighted average interest rate				2.10%
Increase of interest rate on all obligations under the revolving facility in the event of default				2.00%
Fee on the maximum amount available to be drawn under each letter of credit								0.60%			1.00%
Minimum tangible net worth required	180,000,000
Excess tangible net worth	22,000,000
Net income required in future for income covenant				15,000,000
Pre tax income required in net income before tax covenant				15,000,000
Maximum funded debt to EBITDA				2.5
Letter of credit outstanding				1,500,000		1,500,000
Asset coverage ratio				$ 1