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Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Oct. 28, 2017 | Oct. 29, 2016 | Oct. 28, 2017 | Oct. 29, 2016 | Apr. 29, 2017 | Apr. 30, 2016
Accounting pronouncements adopted in fiscal 2018 |  |  |  |  |  |
Unrecognized excess tax benefits from share-based payments |  |  |  |  | $ 0 |
Cash flows from financing activities |  |  | $ (41,115) | $ (26,594) |  |
Cash flows from operating activities |  |  | 51,224 | 54,103 |  |
Cash, cash equivalents and restricted cash | $ 124,697 | $ 114,558 | 124,697 | 114,558 | $ 150,859 | $ 121,335
Net cash provided by (used for) investing activities |  |  | (37,136) | (34,137) |  |
Operating income | 34,269 | 33,858 | 50,567 | 56,316 |  |
Other income (expense), net | $ (926) | (969) | $ (1,381) | (1,731) |  |
Accounting Standards Update 2016-09 - Stock Compensation |  |  |  |  |  |
Accounting pronouncements adopted in fiscal 2018 |  |  |  |  |  |
Cash flows from financing activities |  |  |  | 1,700 |  |
Cash flows from operating activities |  |  |  | (1,700) |  |
Accounting Standards Update 2016-18 - Restricted Cash | Early Adoption, Effect |  |  |  |  |  |
Accounting pronouncements adopted in fiscal 2018 |  |  |  |  |  |
Cash, cash equivalents and restricted cash |  | 9,000 |  | 9,000 |  |
Accounting Standards Update 2016-18 - Restricted Cash | Maximum | Early Adoption, Effect |  |  |  |  |  |
Accounting pronouncements adopted in fiscal 2018 |  |  |  |  |  |
Net cash provided by (used for) investing activities |  |  |  | 100 |  |
Accounting Standards Update 2017-07 - Pension Costs | Early Adoption, Effect |  |  |  |  |  |
Accounting pronouncements adopted in fiscal 2018 |  |  |  |  |  |
Operating income |  | 700 |  | 1,400 |  |
Other income (expense), net |  | $ (700) |  | $ (1,400) |  |

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- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3574-108585 + Details
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