Stockholders' Equity - Additional Information (Detail) (USD $)	0 Months Ended
Jul. 16, 2014	Jul. 16, 2014
Stockholders' Equity Note [Abstract]
Shares authorized for repurchase	5.00%
Number of shares authorized for repurchase		4,000,000
Repurchased common stock shares	4,100,000
Shares repurchased, price per share	$ 30.02

Number of shares that have been repurchased during the period and have not been retired and are held in treasury.

No definition available.

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- Definition

Stock Repurchase Program Percentage Of Outstanding Shares Authorized For Repurchase

+ References

No definition available.

+ Details

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- 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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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

+ Details

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