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Shareholder Rights Plan - Additional Information (Detail) (USD $) | 0 Months Ended |
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Jun. 18, 2009 | Dec. 31, 2013 Right
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |  |
Number of series A junior participating preferred stock shares reserved |  | 150,000
Number of non-detachable preferred stock purchase right distributed as dividend to shareholders |  | 1
Right to purchase a share of Preferred Stock per each right |  | 0.01
Price at which shareholders holding a right may purchase 1/100th of a share of preferred stock |  | $ 83.00
Acquisition percentage to cause rights to become exercisable |  | 15.00%
Market value, multiple over exercise price |  | 2
Value at which Company may redeem rights |  | $ 0.01
Rights agreement expiration date | Jun. 28, 2019 |

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- Definition Percentage of Company's outstanding shares of common stock which person or group must acquire or commence a tender offer to acquire to cause Rights to become exercisable. + References No definition available. + Details
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- Definition Amended And Restated Rights Agreement Expiration Date + References No definition available. + Details
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- Definition Dividend distribution under shareholder rights plan. + References No definition available. + Details
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- Definition Number of Series A Junior Participating Preferred Stock Shares reserved under the Shareholder Rights Plan. + References No definition available. + Details
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- Definition Price at which shareholders holding a Right may purchase 1/100th of a share of preferred stock under the Shareholder Rights Plan. + References No definition available. + Details
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- Definition Under certain circumstances, the value at which the Company may redeem the right. + References No definition available. + Details
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- Definition If exercised, the value of common stock of the Company or an acquiring company a Right holder may purchase. This amount is equal to two times the exercise price of the Right. + References No definition available. + Details
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X
- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. + References No definition available. + Details
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- Details
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