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Shareholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 05, 2015 | Jan. 31, 2014 | Jul. 05, 2015 | Jun. 29, 2014 | Jul. 05, 2015 | Jun. 29, 2014 | May. 31, 2015 | Jan. 31, 2015
Stockholders Equity Note Disclosure [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, intend to repurchase |  |  |  |  |  |  |  | $ 300,000,000
Repurchase of stock, shares | 6.5 |  |  |  |  |  |  |
Repurchase of stock, value | $ 128,300,000 |  |  |  |  |  |  |
Common stock average price | $ 19.74 |  |  |  |  |  |  |
Dividends payable, amount per share |  | $ 0.06 |  |  |  |  | $ 0.06 | $ 0.06
Dividend payment |  |  | $ 12,800,000 | $ 11,700,000 | $ 25,857,000 | $ 11,656,000 |  |
Dividends payable, date to be paid |  | Jun. 02, 2014 |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |
Stockholders Equity Note Disclosure [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  |  | $ 500,000,000

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- Definition Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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