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Debt Commitments (Tables)

3 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Schedule of Debt Obligations and Letters of Credit Outstanding

Debt obligations and letters of credit outstanding at the end of each period consisted of the following:

	March 31, 2019				December 31, 2018
Outstanding loans under unsecured revolving credit facility	$	335.0			365.0
2.00% Senior unsecured promissory note payable	40.0				40.0
2.45% Senior unsecured promissory note payable	35.0				35.0
3.22% Senior unsecured promissory note payable	60.0				60.0
Industrial revenue bonds	19.0				—
Total debt	489.0				500.0
Less: Current portion of debt	(4.4		)		(3.0	)
Long-term debt	$	484.6			497.0
Outstanding letters of credit under unsecured revolving credit facility - contingent obligation	$	36.3			36.3

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- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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