Percentage of discount to employees on purchase of common stock under employee stock purchase plan.

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- Definition

Percentage Of Service Agreement Payment

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Period of vesting for share-based compensation awards.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest Intrinsic Value

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Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest Number

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Share based compensation arrangement by share based payment award service agreement period description.

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Stock based compensation expense expected to be recorded.

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- Definition

Aggregate number of common shares reserved for future issuance.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Amount of cost capitalized for award under share-based payment arrangement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Number of shares authorized for issuance under share-based payment arrangement.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of options outstanding, including both vested and non-vested options.

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Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stockholders' Equity and Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Sep. 25, 2014	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Common stock authorized		500,000,000	500,000,000
Number of Shares outstanding		1,494,000	1,840,000
Unrecognized compensation costs		$ 8.6
Unrecognized compensation costs, weighted average period		2 years 6 months
Percentage of discount allowed to employee to purchase common stock		15.00%
Number of shares authorizes for issuance		3,023,000	3,823,000
ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of shares authorizes for issuance		1,785,021,000
Software Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Capitalized software development costs excluded from stock based compensation		$ 2.4	$ 2.4	$ 1.6
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Percentage of service condition met		25.00%
Service agreement period description		The service condition is a time-based condition met over a period of four years, with 25% met after one year, and then in equal monthly or quarterly installments over the succeeding three years, or over a period of four years, with equal quarterly installments over those four years.
The total stock-based compensation expense expected to be recorded		$ 163.2
Weighted average period of RSU		2 years 7 months 6 days
Number of RSUs expected to vest		1,500,000
Aggregate intrinsic value of RSUs expected to vest		$ 242.3
Total fair value of RSUs vested		$ 85.2	$ 65.0	$ 48.6
Number of shares authorizes for issuance		1,529,000	1,983,000
Common Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Weighted-average grant date fair value of options granted		$ 69.44	$ 51.48	$ 24.56
Number of shares authorizes for issuance		1,494,000	1,840,000
Maximum [Member] \| RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Period of service condition met		4 years
Minimum [Member] \| RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Period of service condition met		1 year
2007 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of shares available for issuance		0
2007 Equity Incentive Plan [Member] \| Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of Shares outstanding		1,000,000.0
2007 Equity Incentive Plan [Member] \| RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of Shares outstanding		0
2007 Equity Incentive Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of years fixed for each option		10 years
2014 Stock Option and Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Percentage of common stock outstanding	5.00%
2014 Stock Option and Incentive Plan [Member] \| Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of shares available for issuance	1,973,551
Number of Shares outstanding		526,000
2014 Stock Option and Incentive Plan [Member] \| RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of Shares outstanding		1,500,000
2014 Stock Option and Incentive Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of years fixed for each option	10 years