Long-Term Debt and Loan Agreements (Tables)

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Schedule of Long Term Debt

Long-term debt consisted of the following:

	June 30,		December 31,
	2018		2017
Loan Agreement	$	2,057	$	74,632
4.67% Senior Unsecured Notes due 2021		40,000		40,000
5.25% Senior Unsecured Notes due 2024		11,000		11,000
5.30% Senior Unsecured Notes due 2024		15,000		15,000
5.45% Senior Unsecured Notes due 2026		12,000		12,000
		80,057		152,632
Less unamortized deferred financing costs		1,403		1,596
	$	78,654	$	151,036