INDEBTEDNESS (Tables)

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Convertible Debt

The carrying value of the Notes is as follows as of:

(in thousands)	June 30, 2017		December 31, 2016
Principal amount	$	143,750	$	143,750
Unamortized debt discount		(17,328)		(20,644)
Deferred financing costs		(2,041)		(2,463)
Net carrying value	$	124,381	$	120,643

Interest Income and Interest Expense Disclosure

The following table sets forth the components of total interest expense related to the Notes recognized in the accompanying unaudited interim condensed consolidated statements of earnings for the three and six months ended June 30, 2017 and 2016:

	Three Months Ended				Six Months Ended
(in thousands)	June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Contractual coupon	$	1,078	$	1,078	$	2,156	$	2,156
Amortization of debt discount		1,668		1,582		3,315		3,144
Amortization of finance fees		211		211		422		422
Capitalized interest		(134)		(54)		(224)		(100)
	$	2,823	$	2,817	$	5,669	$	5,622