Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Dec. 29, 2012	Dec. 29, 2012	Dec. 31, 2011 Predecessor	Dec. 31, 2011 Predecessor
Net income	$ 12,692	$ 8,011	$ 22,175	$ 54,972
Unrealized holding gains on securities arising during period		4	167	29
Unrealized losses on interest rate cash flow hedge	(92)	(1,109)
Reclassification adjustments, net of tax effects	(19)	(24)	182	164
Other comprehensive (loss) income, net of tax	(111)	(1,129)	349	193
Comprehensive income	12,581	6,882	22,524	55,165
Tax effect of unrealized holding gains (losses) on marketable securities	0	3	111	19
Tax effect of unrealized losses on interest rate cash flow hedge	(61)	(739)	0	0
Tax effect of reclassification adjustment	$ (13)	$ (16)	$ 121	$ 109