|
LT Debt (Details 4) (USD $)
In Thousands, unless otherwise specified
|
12 Months Ended |
|
Apr. 26, 2013
|
Apr. 27, 2012
|
Apr. 29, 2011
|
| Footnote Long-Term Debt [Abstract] |
|
|
|
| Interest Costs Incurred, Capitalized |
$ 835 |
$ 644 |
$ 394 |
| Interest Paid |
12,442 |
8,558 |
9,264 |
| Line Of Credit Facility [Abstract] |
|
|
|
| Lines of credit |
201,433 |
0 |
|
| Letters of Credit Outstanding, Amount |
13,749 |
|
|
| Revolving Credit Facility Term |
5 years |
|
|
| Credit Facility Unused Capacity Commitment Fee Percentage Low End Of Range |
0.15% |
|
|
| Credit Facility Unused Capacity Commitment Fee Percentage High End Of Range |
0.275% |
|
|
| Line Of Credit Commitment Fee Amount |
|
1,000 |
|
| Line of Credit Facility [Line Items] |
|
|
|
| Line of Credit Facility, Maximum Borrowing Capacity |
450,000 |
300,000 |
|
| Line Of Credit Facility Borrowing Capacity Increase |
150,000 |
|
|
| Change in Effective Interest Rate |
1.00% |
|
|
| Impact of Change in Effective Interest Rate |
$ 2,042 |
|
|
|
Federal Funds Rate [Member]
|
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
| Debt Instrument, Basis Spread on Variable Rate |
|
0.50% |
|
|
Libor [Member]
|
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
| Credit Facility Variable Rate Low End |
|
0.00% |
|
| Credit Facility Variable Rate High End |
|
1.00% |
|
| Debt Instrument, Basis Spread on Variable Rate |
|
1.00% |
|
|
Base Rate [Member]
|
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
| Credit Facility Variable Rate Low End |
|
0.75% |
|
| Credit Facility Variable Rate High End |
|
2.00% |
|
|
Revolving Credit Facility [Member]
|
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
| Effective Interest Rate |
1.40% |
|
|