4. Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Company's fair value hierarchy for its financial assets and liabilities measured at fair value on a recurring and nonrecurring basis

The fair and carrying value of our debt instruments are detailed as follows (in thousands):

		As of June 30, 2018				As of December 31, 2017
		Fair		Carrying		Fair		Carrying
		Value		Value		Value		Value
4.25% Convertible Notes	$	37,473	$	66,928	$	36,208	$	65,194
Exchangeable Notes		21,207		9,016		21,375		7,975
Delayed draw term loan		30,601		28,183		30,300		27,248
Derivative liability		72		72		93		93
Contingent consideration		1,501		1,501		1,358		1,358
Treximet Secured Notes		139,395		162,853		139,201		167,551
Total	$	230,249	$	268,553	$	228,535	$	269,419

Fair Value Measurements Using Significant Unobservable Input (Tables)

For the Company's assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3), the following table provides a reconciliation of the beginning and ending balances for each category therein, and gains or losses recognized during the periods (in thousands).

		As of and for the		As of and for the
		Six months Ended		Six months Ended
		June 30, 2018		June 30, 2017
Derivative liability:
Balance at beginning of year	$	93	$	230
Remeasurement adjustments - loss (gains) included in earnings		(21)		84
Ending Balance	$	72	$	314
Contingent consideration:
Balance at beginning of year	$	1,358	$	2,403
Remeasurement adjustments - loss (gains) included in earnings		143		(540)
Ending Balance	$	1,501	$	1,863