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Percentage ownership by stockholders.

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Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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Discount rate from fair value on offering date that participants pay for shares.

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Discount rate from fair value on purchase date that participants pay for shares.

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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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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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Number of additional shares authorized for issuance under an established share-based compensation plan.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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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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Percentage of vesting of share-based compensation awards.

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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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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Purchase price of common stock expressed as a percentage of its fair value.

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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Stockholders' Equity - Additional Information (Details) - USD ($)			1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 01, 2015	Mar. 26, 2014	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Feb. 29, 2016	Jun. 29, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Plan description				Options issued to recipients other than nonemployee directors generally vest over four years with a one year cliff and monthly thereafter, and have a maximum contractual term of 10 years.
Weighted-average grant-date fair value of stock options granted					$ 13.55
Total fair value of options vested				$ 2,000,000	$ 4,400,000
Total intrinsic value of options exercised				2,200,000	30,200,000
Cash received from options exercised				500,000	3,200,000
Unrecognized compensation expense of options, net of forfeitures				$ 10,600,000
Unrecognized compensation expense, expected to be recognized over a weighted-average period				1 year 10 months 38 days
Stock repurchase program, authorized amount								$ 50,000,000
Additional stock repurchase program authorized amount							$ 50,000,000
Stock repurchase remained available for future repurchase, value				$ 81,600,000
Stock-based compensation expense				7,397,000	3,920,000
Income tax benefit recognized relating to stock-based compensation expense				2,600,000	1,200,000
Actual tax benefit realized from stock options exercised				$ 2,000,000	$ 10,200,000
Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting percentage				25.00%
Term of stock options				4 years
Volatility rate					39.00%
Stock Option \| Vesting in one year for non-employee director
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting percentage						33.00%
Stock Option \| Awards vesting a year from grant date for newly hired employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting percentage				25.00%
Restricted Stock Unit
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense of options, net of forfeitures				$ 46,200,000
Unrecognized compensation expense, expected to be recognized over a weighted-average period				3 years 3 months 10 days
Total grant date fair value of restricted stock units granted				$ 33,000,000	$ 24,600,000
Total grant date fair value of restricted stock units				$ 5,500,000
Restricted Stock Unit \| Awards vesting a year from grant date for newly hired employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting percentage				25.00%
Restricted Stock Unit \| Awards vesting during each quarter after first year for newly hired employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting percentage				6.25%
Restricted Stock Unit \| Remaining awards vesting during each quarter
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting percentage				6.25%
Performance-based restricted stock units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense, expected to be recognized over a weighted-average period					1 year 8 months 30 days
Unrecognized compensation expense of awards other than options, net of forfeitures				$ 600,000
Performance-based restricted stock units \| Share-based compensation award, tranche one
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Service period			12 months
Performance-based restricted stock units \| Share-based compensation award, tranche two
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Service period			24 months
Performance-based restricted stock units \| Share-based compensation award, tranche three
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Service period			36 months
Minimum \| Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Ownership, less than 10%						10.00%
Minimum \| Performance-based restricted stock units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting percentage range			0.00%
Maximum \| Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Contractual term						5 years
Maximum \| Performance-based restricted stock units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting percentage range			200.00%
Nonemployee directors \| Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options granted percentage of fair market value						110.00%
Nonemployee directors \| Maximum \| Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Contractual term						10 years
Executives \| Performance-based restricted stock units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Term of stock options			3 years
Percentage of long term incentive compensation award grants			33.30%
2000 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, additional number of shares available for grant				0
2009 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for future issuance expressed as a percentage of outstanding shares				4.50%
Number of shares reserved for issuance	3,166,714
2009 Plan \| Nonemployee directors
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Plan description				The 2009 Plan, as amended, provides that the number of shares reserved for issuance under the 2009 Plan will increase on January 1 of each year for a period of up to five years by 4.5% of the total number of shares of capital stock outstanding on December 31 of the preceding calendar year, which will begin on January 1, 2015 and continue through January 1, 2019.
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares reserved for issuance		1,100,000.0
Common stock for future issuance percentage increased		1.00%
Authorized shares reserved for issuance	703,714
Stock options granted percentage of fair market value on offering date		85.00%
Stock options granted percentage of fair market value on purchase date		85.00%
Employee stock purchase plan offering periods				Offering periods are six months in duration and will end on or about May 15 and November 15 of each year.
Employee Stock Purchase Plan \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Employees contribution on earnings		1.00%
Employee Stock Purchase Plan \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock for future issuance number increase		1,800,000
Employees contribution on earnings		15.00%