Employee Benefit Plans - Summary of Company's Stock Option and Restricted Stock Unit Activity (Detail) - $ / shares shares in Thousands	6 Months Ended
	Jul. 03, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Available for Grant, Beginning balance	7,480
Shares Available for Grant, Authorized	0
Shares Available for Grant, Granted	(3,372)
Shares Available for Grant, Options exercised	0
Shares Available for Grant, Shares released	0
Shares Available for Grant, Forfeited or cancelled	1,702
Shares Available for Grant, Ending balance	5,810
Restricted Stock Units Outstanding [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Units, Beginning balance	2,241
Number of Shares, Authorized	0
Number of Units, Granted	1,479
Number of Units, exercised	0
Number of Units, Shares released	(1,173)
Number of Units, Forfeited or cancelled	(115)
Number of Units, Ending balance	2,432
Weighted Average Grant Date Fair Value, Beginning balance	$ 6.40
Weighted Average Grant Date Fair Value, Authorized	0
Estimated weighted average fair value per share at purchase date	7.55
Weighted Average Grant Date Fair Value, Exercised	0
Weighted Average Grant Date Fair Value, Shares released	6.50
Weighted Average Grant Date Fair Value, Forfeited or cancelled	6.45
Weighted Average Grant Date Fair Value, Ending balance	$ 7.11
Stock Options Outstanding [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Beginning balance	7,255
Number of Shares, Authorized	0
Number of Shares, Granted	1,154
Number of Shares, Options exercised	(724)
Number of Shares, Forfeited or cancelled	(1,533)
Number of Shares, Ending balance	6,152
Weighted Average Exercise Price, Beginning balance	$ 6.65
Weighted Average Exercise Price, Authorized	0
Weighted Average Exercise Price, Granted	7.58
Weighted Average Exercise Price, Options exercised	5.34
Weighted Average Exercise Price, Forfeited or cancelled	8.05
Weighted Average Exercise Price, Ending balance	$ 6.63