4. Fair Value Measurement (Tables)

3 Months Ended

Mar. 31, 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 March 31, 2018				As of December 31, 2017
		Fair		Carrying		Fair		Carrying
		Value		Value		Value		Value
4.25% Convertible Notes	$	34,801	$	66,054	$	36,208	$	65,194
Exchangeable Notes		20,763		8,468		21,375		7,975
Delayed draw term loan		29,833		27,717		30,300		27,248
Derivative liability		112		112		93		93
Contingent consideration		1,621		1,621		1,358		1,358
Treximet Secured Notes		136,695		162,405		139,201		167,551
Total	$	223,825	$	266,377	$	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
		Three months Ended		Three months Ended
		March 31, 2018		March 31, 2017
Derivative liability:
Balance at beginning of year	$	93	$	230
Remeasurement adjustments - loss (gains) included in earnings		19		354
Ending Balance	$	112	$	584
Contingent consideration:
Balance at beginning of year	$	1,358	$	2,403
Remeasurement adjustments - loss (gains) included in earnings		263		346
Ending Balance	$	1,621	$	2,749