Credit Agreement governing repurchases of company common stock limitations per year.

No definition available.

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- Definition

Consolidated leverage ratio .

+ References

No definition available.

+ Details

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- Details

Name:	gtiv_EquityAdditionalTextualAbstract
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- Details

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- Definition

Limitations per year for leverage ratio less than or equal to leverage ratio.

+ References

No definition available.

+ Details

Name:	gtiv_LimitationsPerYearForLeverageRatioLessThanOrEqualToLeverageRatio
Namespace Prefix:	gtiv_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Other Comprehensive Income

-URI http://asc.fasb.org/extlink&oid=6519514

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Comprehensive Income

-URI http://asc.fasb.org/extlink&oid=16317811

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e557-108580

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Net Income

-URI http://asc.fasb.org/extlink&oid=6518256

+ Details

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- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors.

+ References

No definition available.

+ Details

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Equity (Details Textual) (USD $)	3 Months Ended
Equity (Details Textual) (USD $)	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 2012 Repurchase Program [Member]	Mar. 13, 2012 2012 Repurchase Program [Member]
Equity (Textual) [Abstract]
Repurchase Limitations				5,000,000
Remaining authorization to repurchase common stock under			$ 1,500,000
Equity (Additional Textual) [Abstract]
Comprehensive income (loss)	498,000	(207,056,000)
Senior note governing repurchases of the Company's common stock limitations per year	7,500,000
Limitations per year for leverage ratio less than or equal to 3.5:1.0	$ 25,000,000
Consolidated leverage ratio	5.8