Financing Agreements - (Details) $ in Thousands |
12 Months Ended |
|
Apr. 27, 2019
USD ($)
|
| Line of Credit |
|
| Line of Credit Facility [Line Items] |
|
| Line of Credit Facility, Maximum Borrowing Capacity |
$ 35,000
|
| Effective interest rate |
3.90%
|
| Line of credit facility, unused capacity, commitment fee percentage |
0.125%
|
| Debt instrument, restrictive covenants, fixed charge coverage ratio |
200.00%
|
| Debt instrument, restrictive covenants, capital expenditure reserve, amount |
$ 6,000
|
| Debt instrument, restrictive covenants, interest-bearing debt, ratio |
100.00%
|
| Standby Letters of Credit |
|
| Line of Credit Facility [Line Items] |
|
| Line of Credit Facility, Maximum Borrowing Capacity |
$ 15,000
|
| Line of Credit Facility, Amount Outstanding |
9,797
|
| Foreign Line of Credit |
|
| Line of Credit Facility [Line Items] |
|
| Line of Credit Facility, Maximum Borrowing Capacity |
$ 55,000
|
| Effective interest rate |
1.50%
|
| Debt instrument, restrictive covenants, fixed charge coverage ratio |
200.00%
|
| Debt instrument, restrictive covenants, capital expenditure reserve, amount |
$ 6,000
|
| Debt instrument, restrictive covenants, interest-bearing debt, ratio |
100.00%
|
| Bank guarantee |
|
| Line of Credit Facility [Line Items] |
|
| Line of Credit Facility, Maximum Borrowing Capacity |
$ 20,000
|
| Line of Credit Facility, Amount Outstanding |
$ 3,496
|
| LIBOR | Minimum | Line of Credit |
|
| Line of Credit Facility [Line Items] |
|
| Debt instrument, basis spread on variable rate |
145.00%
|
| LIBOR | Maximum | Line of Credit |
|
| Line of Credit Facility [Line Items] |
|
| Debt instrument, basis spread on variable rate |
195.00%
|