Revolving Line of Credit (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 28, 2014
Line of credit facility maximum borrowing capacity	$ 225,000
Wolfson Wells Fargo Line of Credit [Member]
Line of credit facility maximum borrowing capacity	225,000
Covenant terms, leverage ratio requirement	175.00%
Covenant terms, sum of cash and cash equiv requirement	75,000
Wolfson Wells Fargo Line of Credit [Member] | Maximum [Member]
Line of credit facility, unused capacity, commitment fee percentage	0.40%
Wolfson Wells Fargo Line of Credit [Member] | Maximum [Member] | Base Rate [Member]
Line of credit facility, interest rate description	.25%
Wolfson Wells Fargo Line of Credit [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of credit facility, interest rate description	2.25%
Wolfson Wells Fargo Line of Credit [Member] | Minimum [Member]
Line of credit facility, unused capacity, commitment fee percentage	0.30%
Wolfson Wells Fargo Line of Credit [Member] | Minimum [Member] | Base Rate [Member]
Line of credit facility, interest rate description	0%
Wolfson Wells Fargo Line of Credit [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of credit facility, interest rate description	1.75%
Expired Wells Fargo Line of Credit [Member]
Line of credit facility maximum borrowing capacity	100,000
Revolving credit sublimit	$ 15,000