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Long-term Debt - Components of interest expense (Details 1) (Convertible Notes Payable, USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Convertible Notes Payable
Debt Instrument [Line Items]
Coupon interest	$ 1,593	$ 1,594	$ 4,781	$ 4,781
Non-cash amortization of discount	3,476	3,248	10,245	9,573
Amortization of issuance costs	205	205	615	615
Total	$ 5,274	$ 5,047	$ 15,641	$ 14,969

X

- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

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- Definition

Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense.

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X

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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- Definition

Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.

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