Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

As of March 31, 2016, the carrying amount of the Notes on the balance sheet is $198.3 million, calculated as follows:

	March 31, 2016
Convertible senior notes, principal amount	$	230,000,000
Unamortized debt discount	(26,428,209		)
Unamortized debt issuance costs	(5,226,948		)
Convertible senior notes, net	$	198,344,843

Schedule of Maturities of Long-term Debt

The undiscounted interest and principal payments due in relation to the Notes from March 31, 2016 to the maturity of the Notes on May 1, 2020 are as follows:

	Total		2016	2017	2018	2019	2020
Senior convertible notes, including interest	$	255,875,000	5,750,000	5,750,000	5,750,000	5,750,000	$	232,875,000