Accumulated other comprehensive income (Details)
$ in Thousands
3 Months Ended
May. 30, 2015
USD ($)
Rollforward of the amounts included in AOCI, net of taxes  
Balance at the beginning of the period $ (18,342)
Other comprehensive (loss) income before reclassifications, net of tax (1,227)
Amounts reclassified to earnings, net of tax 380
Net current period other comprehensive (loss) income (847)
Balance at the end of the period (19,189)
Pension liability adjustment  
Rollforward of the amounts included in AOCI, net of taxes  
Balance at the beginning of the period (1,167)
Other comprehensive (loss) income before reclassifications, net of tax 30
Net current period other comprehensive (loss) income 30
Balance at the end of the period (1,137)
Foreign currency translation  
Rollforward of the amounts included in AOCI, net of taxes  
Balance at the beginning of the period (16,293)
Other comprehensive (loss) income before reclassifications, net of tax (1,051)
Net current period other comprehensive (loss) income (1,051)
Balance at the end of the period (17,344)
Foreign currency forward contracts  
Rollforward of the amounts included in AOCI, net of taxes  
Balance at the beginning of the period (882)
Other comprehensive (loss) income before reclassifications, net of tax (206)
Amounts reclassified to earnings, net of tax 380
Net current period other comprehensive (loss) income 174
Balance at the end of the period $ (708)