XML 21 R25.htm IDEA: XBRL DOCUMENT
v2.4.0.8

2.25% Convertible Senior Notes Due 2019 (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2014
Debt Disclosure [Abstract] |
Carrying Amounts of Liability and Equity Components | The following table presents the carrying amounts of the liability and equity components:
|  | June 30, 2014 |
Amount of the equity component (1) |  | $ | 45,807,685 |
2.25% convertible senior notes due 2019 |  | $ | 330,000,000 |
Unamortized debt discount (2) |  |  | (46,984,875 | )
Transaction costs related to the debt component |  |  | (7,090,850 | )
Net carrying amount |  | $ | 275,924,275 |
(1) | Net of $1,177,190 of transaction costs related to the equity component of the Notes.
(2) | As of June 30, 2014, the remaining period over which the unamortized debt discount will be amortized is 5 years.

X
- Definition Tabular disclosure of borrowings which can be exchanged for a specified number of another security at the option of the issuer or the holder. Disclosures include, but are not limited to, principal amount, amortized premium or discount, and amount of liability and equity components. + References No definition available. + Details
Name: | us-gaap_ConvertibleDebtTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration