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Shareholders' Equity - Dividends (Details) - $ / shares | Oct. 29, 2015 | Jun. 15, 2015 | Apr. 28, 2015 | Dec. 15, 2014 | Oct. 29, 2014 | Jun. 16, 2014 | Apr. 29, 2014
--- | --- | --- | --- | --- | --- | --- | ---
Equity [Abstract] |  |  |  |  |  |  |
Dividends paid |  | $ 0.80 |  | $ 0.49 |  | $ 0.49 |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Dividends declared (in dollars per share) |  |  | $ 0.80 |  | $ 0.49 |  | $ 0.49
Subsequent event |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Dividends declared (in dollars per share) | $ 0.80 |  |  |  |  |  |

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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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