Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2021

Schedule of long-term debt and long-term debt payable to related parties

Long-term debt consisted of the following (in thousands):


	June 30, 2021		December 31, 2020
6.125% Senior Notes	$	543,996	$	542,772
Credit Facility	138,164		137,613
Total	$	682,160	$	680,385

The carrying amount of the 6.125% Senior Notes was determined as follows (in thousands):


	June 30, 2021		December 31, 2020
Principal balance	$	550,000	$	550,000
Less: debt issue cost	3,046		3,688
Less: debt discount	2,958		3,540
Total	$	543,996	$	542,772

Interest expense, amortization of debt issue costs and amortization of the debt discount of the 6.125% Senior Notes, included in “Interest (expense) income, net” on the accompanying unaudited condensed consolidated statements of operations, were as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Interest expense	$	8,715	$	8,697	$	17,426	$	17,390
Debt issue cost amortization	321		321		642		642
Debt discount amortization	293		275		582		546
Total	$	9,329	$	9,293	$	18,650	$	18,578

Details of the Credit Facility are as follows (in thousands):


	June 30, 2021		December 31, 2020
Principal balance	$	140,000	$	140,000
Less: Debt issue cost	1,836		2,387
Total	$	138,164	$	137,613

Interest expense and amortization of debt issue costs of the Credit Facility, included in “Interest (expense) income, net” on the accompanying unaudited condensed consolidated statements of operations, were as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Interest expense	$	609	$	2,339	$	1,191	$	3,969
Debt issue cost amortization	275		275		550		461
Unused facility fee	206		32		419		141
Total	$	1,090	$	2,646	$	2,160	$	4,571