Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2020

Debt Disclosure [Abstract]

Summary of Long-Term Debt

Long-term debt consisted of the following:

(Millions of dollars)	June 30, 2020		December 31, 2019
5.625% senior notes due 2027 (net of unamortized discount of $2.6 at June 30, 2020 and $2.7 at December 2019)	$	297.4	$	297.3
4.75% senior notes due 2029 (net of unamortized discount of $5.8 at June 30, 2020 and $6.1 at December 31, 2019)	494.2		493.9
Term loan due 2023 (effective interest rate of 3.35% at June 30, 2020 and 4.31% at December 31, 2019)	237.5		250.0
Capitalized lease obligations, vehicles, due through 2023	2.4		2.4
Less unamortized debt issuance costs	(5.0)		(5.5)
Total long-term debt	1,026.5		1,038.1
Less current maturities	51.2		38.8
Total long-term debt, net of current	$	975.3	$	999.3