|
Income Taxes - Additional Information (Detail) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Income Tax And Carryforwards [Line Items] | |||
| Provision for (benefit from) income taxes | $ (4,192,000) | $ 153,000 | $ 6,110,000 |
| Valuation allowance to offset deferred tax asset | 2,868,000 | 2,913,000 | |
|
Discontinued Operations [Member]
|
|||
| Income Tax And Carryforwards [Line Items] | |||
| Provision for (benefit from) income taxes | (20,000) | (60,000) | 500,000 |
|
Federal Tax
|
|||
| Income Tax And Carryforwards [Line Items] | |||
| Net operating loss carryforwards | 155,600,000 | ||
| Net operating loss carryforwards, beginning expiry year | 2020 | ||
| Net operating loss carryforwards, ending expiry year | 2033 | ||
|
State
|
|||
| Income Tax And Carryforwards [Line Items] | |||
| Net operating loss carryforwards | $ 974,600,000 | ||
| Net operating loss carryforwards, beginning expiry year | 2014 | ||
| Net operating loss carryforwards, ending expiry year | 2033 | ||
| X | ||||||||||
|
- Definition
Beginning Year Of Expiry For Net Operating Loss Carryforwards No definition available.
|
| X | ||||||||||
|
- Definition
Ending Year Of Expiry For Net Operating Loss Carryforwards No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|