Common Stock and Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	Jan. 02, 2016	Mar. 31, 2016	Dec. 31, 2015
Class Of Stock [Line Items]
Common stock, shares authorized		400,000,000	400,000,000
Common stock, par value		$ 0.01	$ 0.01
Common stock, shares issued		92,000,000	90,900,000
Common stock, shares outstanding		91,500,000	90,300,000
Common stock shares outstanding, subject to repurchase		200,000	300,000
Preferred stock, shares authorized		10,000,000	10,000,000
Preferred stock, par value		$ 0.01	$ 0.01
Preferred stock, shares issued		0	0
Preferred stock, shares outstanding		0	0
Share-based Compensation Arrangement by Share-based Payment Award Increase in Number of Shares Reserved and Available for Issuance		4,516,000
Shares of common stock available for issuance		7,466,000	4,323,000
Share price		$ 20.93
Future period share-based compensation expense		$ 167.8
Future period share-based compensation expense, period to recognized		2 years 10 months 24 days
Shares outstanding as a result of early exercise of stock options and purchase of unvested stock awards		200,000	300,000
Accrued liability for shares outstanding as a result of early exercise of stock options and purchase of unvested stock awards		$ 0.8	$ 1.0
2009 Stock Option and Grant Plan
Class Of Stock [Line Items]
Shares of common stock available for issuance		0
2014 Plan | Employee Stock Option
Class Of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award Increase in Number of Shares Reserved and Available for Issuance	4,500,000
Shares of common stock available for issuance		7,500,000
Employee Stock Purchase Plan
Class Of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award Increase in Number of Shares Reserved and Available for Issuance	900,000
Percentage of purchase price of shares lower of the fair market value of common stock employees are able to purchase shares		85.00%
Common shares purchased		0
Shares of common stock available for issuance		3,800,000