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Subsequent Events (Details) - Subsequent Event $ / shares in Units, shares in Millions, $ in Millions	May. 04, 2016 USD ($) $ / shares	May. 04, 2016 USD ($) $ / shares shares	Apr. 28, 2016 $ / shares	Apr. 27, 2016	Apr. 26, 2016
Subsequent Event [Line Items]
Debt instrument, covenant, leverage ratio, maximum					3.25
Fourth Amendment April 2016
Subsequent Event [Line Items]
Debt instrument, covenant, leverage ratio, maximum				3.75
Debt instrument, covenant, senior secured leverage ratio, maximum				3.25
Convertible Debt | 3.25% Convertible Notes Due 2021
Subsequent Event [Line Items]
Debt aggregate principal amount	$ 150.0	$ 150.0
Debt instrument, interest rate, stated percentage	3.25%	3.25%
Proceeds from debt, net of issuance costs		$ 140.0
Debt instrument, additional capacity available, term		30 days
Debt instrument, additional capacity available, amount	$ 22.5	$ 22.5
Convertible Note Hedge Transaction Share Coverage | shares		8.1
Debt instrument, convertible, conversion price (usd per share) | $ / shares	$ 21.105	$ 21.105	$ 13.400
Convertible Debt Sales Price Premium	0.00%
Debt Instrument, Convertible, Conversion Ratio			0.0542741

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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-Topic 505
-SubTopic 10
-Section 50
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Face (par) amount of debt instrument at time of issuance.

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

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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