Stockholders' Equity - Additional Information (Detail) (USD $)	6 Months Ended	12 Months Ended				1 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended							12 Months Ended
	Jun. 28, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 04, 2006	Sep. 21, 2012 Common stock [Member]	Dec. 31, 2013 Common stock [Member]	Jul. 13, 2012 Stock appreciation rights [Member]	Dec. 31, 2013 Stock appreciation rights [Member]	Dec. 31, 2012 Stock appreciation rights [Member]	Dec. 31, 2011 Stock appreciation rights [Member]	Dec. 31, 2012 Upside Case Achievement [Member]	Dec. 31, 2013 Stock options [Member]	Dec. 31, 2013 Performance shares [Member]	Dec. 31, 2012 Performance shares [Member]	Dec. 31, 2012 Performance shares [Member] Upside Case Achievement [Member]	Dec. 31, 2013 Employee Stock Purchase Plan [Member]	Dec. 31, 2013 Annual non-employee directors grants [Member] Stock options [Member]	Dec. 31, 2013 Annual non-employee directors grants [Member] Restricted stock units [Member]	Dec. 31, 2013 Equity incentive plan [Member]	Jul. 13, 2012 Pre-split basis [Member] Equity incentive plan [Member] Minimum [Member]	Jul. 13, 2012 Pre-split basis [Member] Equity incentive plan [Member] Maximum [Member]	Jul. 13, 2012 Post-split basis [Member] Equity incentive plan [Member]	Jun. 28, 2013 Post-split basis [Member] Equity incentive plan [Member] Minimum [Member]	Jun. 28, 2013 Post-split basis [Member] Equity incentive plan [Member] Maximum [Member]	Dec. 31, 2013 ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum percentage before exercise					20.00%
Number of shares authorized for issuance																				1,700,000	7,500,000	9,300,000	18,600,000	18,600,000	19,150,000	3,000,000
Forward stock split of common stock		2				2	2
Share-based payments award, expiration term													10 years	10 years
Share-based payment awards, vesting period													4 years					1 year
Share-based payment awards, vesting period, descriptions																			Restricted stock units generally vest in three equal installments on approximately the first, second and third anniversaries of the grant date, except for annual restricted stock unit grants to non-employee directors, which vest on approximately the first anniversary of the grant date.
Fair value of stock appreciation rights		$ 11,800,000	$ 6,200,000	$ 2,400,000					$ 10,000,000	$ 4,300,000
Performance shares eligible to be earned												83,332
Total fair market value of performance share awards that are vested during the period			$ 4,700,000
Performance share awards cancelled during period																41,668
Performance share awards outstanding														0	0
Intrinsic value exercised									1,100,000	0			215.6
Weighted-average grant date or remeasurement-date fair value per share								$ 32.94		$ 14.33	$ 14.91
Stock appreciation rights granted
Employees share purchase plan, fair market value of common stock at beginning of offering period	85.00%
Employees share purchase plan, fair market value of common stock at end of purchase period	85.00%
Eligible employee contributions	25,000
Shares reserved for issuance		51,540
Shares issued in period		0
Employee withholdings for ESPP shares		1,300,000
Expected dividend yield		0.00%
Unrecognized stock-based compensation expense		$ 65,600,000															$ 400,000
Unrecognized stock-based compensation expense, weighted-average period for recognition		2 years 6 months															3 months
Warrants to purchase aggregate shares of common stock, Exercised		25,808
Common stock, Exercise price per share		$ 0.78
Warrants to purchase aggregate shares of common stock, Outstanding		20,000
Common stock, Exercise price per share, Outstanding		6.93
Warrants expiration date		2017