Debt (Tables)

3 Months Ended

Mar. 31, 2017

Debt Disclosure [Abstract]

Summary of Indebtedness outstanding

Indebtedness outstanding was as follows:

	March 31,			December 31,
	2017			2016
Short-term debt:
Bank Credit Facility, expires July 30, 2019		$	-		$	-
Long-term debt:
4.50% Senior Notes, due December 1, 2025. Aggregate
principal amount of $250,000 less unaccrued discount of
$589 and $603 (4.5% imputed rate) and unamortized
debt issuance costs of $2,138 and $2,188			247,273			247,209