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Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Summary of Long-Term Debt

Long-term debt consisted of the following:

(Millions of dollars)		September 30, 2018				December 31, 2017
6.00% senior notes due 2023 (net of unamortized discount of $4.3 at September 30, 2018 and $5.0 at December 2017)		$	495.7			$	495.0
5.625% senior notes due 2027 (net of unamortized discount of $3.2 at September 30, 2018 and $3.5 at December 2017)		296.8				296.5
Term loan due 2020 (effective interest rate of 4.72% at September 30, 2018)		77.0				92.0
Capitalized lease obligations, vehicles, due through 2021		2.4				2.5
Less unamortized debt issuance costs		(4.1		)		(5.2		)
Total long-term debt		867.8				880.8
Less current maturities		21.2				19.9
Total long-term debt, net of current		$	846.6			$	860.9

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- Definition

Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.

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