Senior Convertible Notes (Tables)

9 Months Ended

Sep. 30, 2015

Senior Convertible Notes

Schedule of interest activity

A summary of quarterly activity is listed below (dollars in thousands):

Interest payable on Senior Convertible Debenture at 1/1/2015	$	2,500
Accrued interest expense during the 3 months ended March 31, 2015	3,750
Interest Payable on Senior Convertible Debenture at March 31, 2015	6,250
Accrued interest expense during the 3 months ended June 30, 2015	3,388
Interest Payment on Senior Convertible Debenture at May 1, 2015	(7,416		)
Interest payable on Senior Convertible Debenture as of June 30, 2015	2,222
Accrued interest expense during the 3 months ended September 30, 2015	2,747
Interest payable on Senior Convertible Debenture as of September 30, 2015	$	4,969

Schedule of activity and balances associated with the Notes and related deferred transaction costs

A summary of quarterly activity and balances associated with the Notes and related deferred transaction costs is presented below ($ in thousands):

	Notes Balance			Transactions Costs			Notes, net of Transaction Costs
Balance at issuance November 1, 2014	$	200,000		$	12,747		$	187,253
Less: amortization two months ended December 31, 2014	—			(411		)	411
Balance December 31, 2014	200,000			12,336			187,664
Less: amortization three months ended March 31, 2015	—			(617		)	617
Balance March 31, 2015	200,000			11,719			188,281
Less: amortization three months ended June 30, 2015 (1)	—			(1,899		)	1,899
Conversions	(22,213		)	—			(22,213		)
Balance June 30, 2015	177,787			9,820			167,967
Less: amortization three months ended September 30, 2015	—			(1,544		)	1,544
Conversions	(18,776		)	—			(18,776		)
Balance September 30, 2015	$	159,011		$	8,276		$	150,735

(1) Includes accelerated amortization of deferred financing costs attributable to conversions