Income taxes.

No definition available.

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- Definition

Operating loss carryforwards expiration year.

+ References

No definition available.

+ Details

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- Definition

Percentage change in stock ownership used under Section 382 to determine whether an ownership change has occurred.

+ References

No definition available.

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- Definition

Section 382 ownership change testing period.

+ References

No definition available.

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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 45

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32123-109318

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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- Definition

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Carryforwards

-URI http://asc.fasb.org/extlink&oid=6506874

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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Taxes [Line Items]
Ownership change percentage criteria under Section 382 of the Internal Revenue Code			50.00%
Testing period			3 years
Valuation allowance related to net deferred tax	$ (1.3)	$ (4.1)	$ 1.8	$ (3.0)
State
Income Taxes [Line Items]
State and Federal Operating loss carry-forwards	399.0		399.0
State Tax credit carry-forwards	2.6		$ 2.6
State and Federal Operating loss carry-forwards expiration year			2032
Federal
Income Taxes [Line Items]
State and Federal Operating loss carry-forwards	$ 256.6		$ 256.6
State and Federal Operating loss carry-forwards expiration year			2033