Financing Receivables and Allowance for Credit Losses (Financing Receivables And Allowance For Credit Losses) (Details) (USD $) In Millions	3 Months Ended
	Jul. 01, 2011
Financing Receivables And Allowance For Credit Losses
Gross amount of accounts receivable with contractual maturities of more than one year	$ 16.4
Allowance for doubtful accounts for accounts receivable with contractual maturities of more than one year
Net amount of accounts receivable with contractual maturities of more than one year	16.4
Amount past due	1.7
Note receivable from related party	8.8
Note receivable from customer	8.0	[1]
Total note receivable	16.8
Amount past due
Accounts receivable with contractual maturities of more than one year, amount sold	$ 3

[1] Represents a bridge loan to a customer that will mature no later than December 2011.