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Debt And Credit Agreements (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule Of Borrowings Under Credit Agreement At Various Indebtedness To Adjusted EBITDA Levels

Summary Of Total Debt Due And Outstanding

At December 31, 2017, based upon the most restrictive covenant within the Credit Agreement, available credit under the Credit Agreement was approximately $248 million. Total debt due and outstanding at December 31, 2017 is summarized below:

Debt Due and Outstanding at December 31, 2017 (In thousands)
Year Due	Credit Agreement				Other				Total Debt Due
2018	$	—			$	—			$	—
2019	—				—				—
2020	—				—				—
2021	152,000				—				152,000
2022	—				—				—
Total	$	152,000			$	—			$	152,000

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Schedule Of Borrowings Under Credit Agreement At Various Indebtedness To Adjusted Ebitda Levels [Table Text Block]

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- Definition

Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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