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Date the declared dividend will be paid, in CCYY-MM-DD format.

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The per share amount of a dividend declared, but not paid, as of the financial reporting date.

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Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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

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Shareholders' Equity - Additional Information (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	0 Months Ended	1 Months Ended		3 Months Ended
	Apr. 05, 2015	Jan. 31, 2015	Jan. 31, 2014	Apr. 05, 2015
Stockholders Equity Note Disclosure [Line Items]
Stock repurchase program, intend to repurchase		$ 300,000,000
Repurchase of stock, shares	2.4
Repurchase of stock, value	46,700,000
Common stock average price	$ 19.40
Dividends payable, amount per share		$ 0.06us-gaap_DividendsPayableAmountPerShare	$ 0.06us-gaap_DividendsPayableAmountPerShare
Dividends payable, date to be paid		Mar. 24, 2015	Jun. 02, 2014
Dividends payable, record date		Feb. 27, 2015	May 09, 2014
Dividend payment				13,049,000us-gaap_PaymentsOfDividends
Maximum
Stockholders Equity Note Disclosure [Line Items]
Stock repurchase program, authorized amount		$ 500,000,000