OTHER EXPENSE, NET

9 Months Ended

Sep. 30, 2019

Other Income And Expenses [Abstract]

OTHER EXPENSE, NET

11. OTHER EXPENSE, NET

The following table summarizes other expense, net, for the periods indicated:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2019			2018			2019			2018
	(in thousand)
Interest expense	$	(7,518	)	$	(10,681	)	$	(22,279	)	$	(26,460	)
Interest income		1,293			1,477			5,758			5,236
Amortization of investment discount		4,089			2,295			13,002			5,123
Other expense		(374	)		(59	)		(25	)		(570	)
Total other expense, net	$	(2,510	)	$	(6,968	)	$	(3,544	)	$	(16,671	)