Financial Commitments (Tables)

3 Months Ended

Mar. 31, 2019

Financial Commitments [Abstract]

Long-term Debt

	As of March 31,		As of December 31,
(in thousands)	2019		2018
2017 Senior Notes	$	493,726	$	493,521
2017 Credit Facility		181,500		41,000
Convertible Notes		174,089		171,481
Equipment financing and mortgages		46,454		50,904
Other indebtedness		2,857		4,598
Total debt		898,626		761,504
Less: Current maturities		11,921		16,767
Long-term debt, net	$	886,705	$	744,737

Reconciliation Of Outstanding Debt Balance To Reported Debt Balance

	As of March 31, 2019						As of December 31, 2018
(in thousands)	Outstanding Long-Term Debt		Unamortized Discount and Issuance Costs		Long-Term Debt, as reported		Outstanding Long-Term Debt		Unamortized Discount and Issuance Costs		Long-Term Debt, as reported
2017 Senior Notes	$	500,000	$	(6,274)	$	493,726	$	500,000	$	(6,479)	$	493,521
Convertible Notes		200,000		(25,911)		174,089		200,000		(28,519)		171,481

Summary Of Interest Expense As Reported In The Condensed Consolidated Statements of Income

	Three Months Ended
	March 31,
(in thousands)	2019		2018
Cash interest expense:
Interest on 2017 Senior Notes	$	8,594	$	8,594
Interest on 2017 Credit Facility		2,645		1,349
Interest on Convertible Notes		1,438		1,438
Other interest		574		757
Total cash interest expense		13,251		12,138
Non-cash interest expense:(a)
Amortization of discount and debt issuance costs on Convertible Notes		2,608		2,376
Amortization of debt issuance costs on 2017 Credit Facility		361		360
Amortization of debt issuance costs on 2017 Senior Notes		205		191
Total non-cash interest expense		3,174		2,927
Total interest expense	$	16,425	$	15,065

(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 were7.13% and 9.39%, respectively, for the three months ended March 31, 2019.