Debt Obligations (Changes in Accretable Yield on Securitized Financings) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 28, 2013	Sep. 30, 2012	Sep. 28, 2013	Sep. 30, 2012
Accretable Yield Movement on Acquired Securitized Financings
Balance at the beginning of the period	$ 18,879	$ 24,634	$ 19,916	$ 26,032
Accretion	(1,088)	(1,345)	(2,238)	(2,743)
Adjustment to cash flows	652	390	765	390
Balance at the end of the period	$ 18,443	$ 23,679	$ 18,443	$ 23,679