Financial Commitments (Tables)

6 Months Ended

Jun. 30, 2020

Financial Commitments [Abstract]

Long-Term Debt

	As of June 30,		As of December 31,
(in thousands)	2020		2019
2017 Senior Notes	$	494,810	$	494,365
2017 Credit Facility		100,000		114,000
Convertible Notes		188,089		182,292
Equipment financing and mortgages		44,917		39,159
Other indebtedness		8,603		4,660
Total debt		836,419		834,476
Less: Current maturities		320,790		124,054
Long-term debt, net	$	515,629	$	710,422

Reconciliation Of Outstanding Debt Balance To Reported Debt Balance

	As of June 30, 2020						As of December 31, 2019
(in thousands)	Outstanding Debt		Unamortized Discount and Issuance Costs		Debt, as reported		Outstanding Debt		Unamortized Discount and Issuance Costs		Debt, as reported
2017 Senior Notes	$	500,000	$	(5,190)	$	494,810	$	500,000	$	(5,635)	$	494,365
Convertible Notes		200,000		(11,911)		188,089		200,000		(17,708)		182,292

Summary Of Interest Expense As Reported In The Consolidated Statements of Operations

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(in thousands)	2020		2019		2020		2019
Cash interest expense:
Interest on 2017 Senior Notes	$	8,593	$	8,594	$	17,187	$	17,187
Interest on 2017 Credit Facility		2,338		3,682		4,753		6,327
Interest on Convertible Notes		1,438		1,438		2,875		2,875
Other interest		535		541		1,039		1,116
Total cash interest expense		12,904		14,255		25,854		27,505
Non-cash interest expense:(a)
Amortization of discount and debt issuance costs on Convertible Notes		2,933		2,671		5,797		5,279
Amortization of debt issuance costs on 2017 Credit Facility		402		387		804		749
Amortization of debt issuance costs on 2017 Senior Notes		225		209		445		414
Total non-cash interest expense		3,560		3,267		7,046		6,442
Total interest expense	$	16,464	$	17,522	$	32,900	$	33,947

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(a)The combination of cash and non-cash interest expense produces effective interest rates that are higher than contractual rates. Accordingly, the effective interest rates for the 2017 Senior Notes and the Convertible Notes were 7.13% and 9.39%, respectively, for the six months ended June 30, 2020.