Long-Term Debt and Capital Lease Obligations (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Summary of Convertible Notes

The Convertible Notes at September 30, 2016 consisted of the following (in thousands):

	September 30,
		2016
2.50% Convertible Notes, bearing interest at 2.50% payable semi-annually with final    principal payment to be made April 1, 2022	$	115,000
Unamortized debt issuance costs		(2,124	)
Unamortized debt discounts		(27,661	)
Net carrying value of Convertible Notes	$	85,215

Components of Interest Expense Incurred on Convertible Notes and on Other Borrowings

The following table presents the components of interest expense incurred on the Convertible Notes and on other borrowings (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
2.50% Convertible Notes:
Interest expense at 2.50% coupon rate	$	725	$	725	$	2,166	$	1,449
Amortization of debt discount		995		921		2,940		1,843
Amortization of deferred debt issuance costs		96		92		290		193
Total interest from 2.50% convertible notes		1,816		1,738		5,396		3,485
Other Borrowings:
Interest from other borrowings		-		-		4		455
Total interest expense	$	1,816	$	1,738	$	5,400	$	3,940