Total Revenue (as Recognized Based on Country of Origin), and Long-Lived Assets by Geographic Location (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 1,080,984	$ 1,314,726	$ 1,056,605	$ 919,154	$ 917,452	$ 1,012,229	$ 740,303	$ 640,859	$ 4,371,469	$ 3,310,843	$ 2,181,732
Long-lived assets	624,475				398,712				624,475	398,712
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue									3,227,500	2,600,100	1,800,400
Long-lived assets	$ 418,800				$ 265,900				$ 418,800	$ 265,900