Debt Obligations (Changes in Accretable Yield on Securitized Financings) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Accretable Yield Movement on Acquired Securitized Financings
Balance at the beginning of the period	$ 19,916	$ 26,032
Accretion	(1,150)	(1,398)
Adjustment to cash flows	113	0
Balance at the end of the period	$ 18,879	$ 24,634