Summary of Stock Option Activity Awards (Detail) - $ / shares	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Outstanding at beginning of year, Shares	3,766,299	4,056,536	5,779,597
Granted, Shares	0	1,365,498	0
Forfeited, Shares	(1,792,948)	(1,226,716)	(108,818)
Exercised, Shares	(35,417)	(429,019)	(1,614,243)
Outstanding at end of year, Shares	1,937,934	3,766,299	4,056,536
Outstanding at beginning of year, Weighted Average Exercise Price	$ 4.81	$ 5.56	$ 4.53
Granted, Weighted Average Exercise Price		4.45
Forfeited, Weighted Average Exercise Price	5.13	7.12	5.04
Exercised, Weighted Average Exercise Price	1.83	4.15	1.89
Outstanding at end of year, Weighted Average Exercise Price	$ 4.57	$ 4.81	$ 5.56