Current and long-term obligations (Details) $ in Millions	Apr. 29, 2016 USD ($)
Senior unsecured credit facility, maturity October 20, 2020, Term Facility
Current and long-term obligations
Current and long-term obligations	$ 425.0
Senior unsecured credit facility, maturity October 20, 2020, Revolving Facility
Current and long-term obligations
Current and long-term obligations	271.0
Maximum financing under credit agreements	1,000.0
Borrowing availability under credit facility	696.2
Senior unsecured credit facility, maturity October 20, 2020, Revolving Facility \| Letters of credit
Current and long-term obligations
Maximum financing under credit agreements	175.0
Letters of credit outstanding	32.8
Letter of Credit Outside of Revolving Facility
Current and long-term obligations
Letters of credit outstanding	$ 15.9

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13,16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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