Interest Expense Debt (Coupon Interest Expense)

No definition available.

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- 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

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- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

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-Publisher FASB
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- Definition

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

+ References

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-Topic 210
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- Definition

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.

+ References

No definition available.

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- Definition

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

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DEBT - INTEREST EXPENSE COMPONENTS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Jun. 18, 2013
Debt Instrument [Line Items]
Non-cash amortization of discount on Convertible Notes			$ 15,424	$ 17,870
Amortization of debt issuance costs			$ 554	1,078
1.00% Convertible Notes due 2018
Debt Instrument [Line Items]
Interest rate	1.00%		1.00%
Convertible Debt \| 1.00% Convertible Notes due 2018
Debt Instrument [Line Items]
Interest rate					1.00%
Cash interest expense (coupon interest expense)	$ (60)	$ 698	$ 519	2,115
Non-cash amortization of discount on Convertible Notes	1,509	3,285	15,424	10,289
Amortization of debt issuance costs	48	99	471	333
Total interest expense related to Convertible Notes	$ 1,497	$ 4,082	$ 16,414	$ 12,737