Convertible Senior Notes (Details) (USD $)	1 Months Ended	12 Months Ended
Nov. 30, 2013	Jun. 29, 2014
Debt Instrument [Line Items]
Principal amount	$ 175,000,000	$ 175,000,000
Debt instrument, interest rate, stated percentage	1.75%
Debt instrument, maturity date	Nov. 15, 2018
Debt instrument, convertible notes, percentage of principal amount	100.00%	100.00%
Debt instrument, term		4 years 4 months 15 days
Debt Instrument, convertible, conversion price		$ 10.30
Debt Instrument, convertible, conversion ratio		0.09713
Debt Instrument, unamortized discount		32,000,000
Debt issuance costs		5,300,000
Debt issuance costs, gross		4,300,000
Issuance costs, equity component		1,000,000
Debt issuance costs, net		$ 3,900,000
Conversion Event 1
Debt Instrument [Line Items]
Debt Instrument, convertible, threshold trading days		20
Debt Instrument, convertible, threshold consecutive trading days		30 days
Debt Instrument, convertible, threshold percentage of stock price trigger		130.00%
Conversion Event 2
Debt Instrument [Line Items]
Debt Instrument, convertible, threshold trading days		5
Debt Instrument, convertible, threshold consecutive trading days		5 days
Debt Instrument, convertible, threshold percentage of stock price trigger		98.00%

Percentage of the principal amount of the convertible notes

No definition available.

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- Definition

Transaction costs associated with the issuance of the convertible debt that have been allocated to equity.

+ References

No definition available.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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-Glossary Conversion Rate

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- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instruments must exceed threshold percentage for a specified number of trading days to trigger conversion feature, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

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- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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- Definition

Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

+ References

No definition available.

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Amount of issuance costs recognized in a share-lending arrangement entered into by the entity, in contemplation of a convertible debt offering or other financing, before deduction of accumulated amortization or effects of subsequent adjustments.

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- Definition

Amount of issuance costs recognized in a share-lending arrangement entered into by the entity, in contemplation of a convertible debt offering or other financing, after deduction of accumulated amortization or the effects of subsequent adjustments.

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