Long-Term Debt and Loan Agreements (Tables)

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Schedule of Long Term Debt

Long-term debt consisted of the following:

	June 30,		December 31,
	2017		2016
Loan Agreement	$	72,001	$	90,686
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		29,000		29,000
5.45% Senior Unsecured Notes due 2026		20,000		20,000
		172,001		190,686
Less unamortized deferred financing costs		1,887		1,164
	$	170,114	$	189,522