XML 101 R69.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Stockholders' Equity - Summary of Activities Related to Dividends on Common Stock (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 23, 2015 | Jan. 24, 2014 | Jan. 23, 2015 | Jan. 24, 2014
Dividends, Common Stock [Abstract] |  |  |  |
Dividends per share declared and paid | $ 0.165 us-gaap_CommonStockDividendsPerShareDeclared | $ 0.150 us-gaap_CommonStockDividendsPerShareDeclared | $ 0.495 us-gaap_CommonStockDividendsPerShareDeclared | $ 0.450 us-gaap_CommonStockDividendsPerShareDeclared
Dividend payments |  |  | $ 156.9 us-gaap_PaymentsOfDividends | $ 153.1 us-gaap_PaymentsOfDividends
Additional Paid-in Capital |  |  |  |
Dividends, Common Stock [Abstract] |  |  |  |
Dividend payments |  |  | 52.1 us-gaap_PaymentsOfDividends / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 50.4 us-gaap_PaymentsOfDividends / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember
Retained Earnings |  |  |  |
Dividends, Common Stock [Abstract] |  |  |  |
Dividend payments |  |  | $ 104.8 us-gaap_PaymentsOfDividends / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ 102.7 us-gaap_PaymentsOfDividends / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember

X
- 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: 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 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DividendsCommonStockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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=31042434&loc=d3e3291-108585 + Details
Name: | us-gaap_PaymentsOfDividends
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |