Long-Term Debt and Credit Agreements (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Schedule of long term debt

Long-term debt at December 31, 2014 and 2013 consisted of the following:

	2014		2013
Loan Agreement	$	137,109	$	34,200
4.67% Senior Unsecured Notes due 2021	40,000		—
5.25% Senior Unsecured Notes due 2024	11,000		11,000
5.30% Senior Unsecured Notes due 2024	29,000		—
5.45% Senior Unsecured Notes due 2026	20,000		—
	237,109		45,200
Less unamortized deferred financing costs	680		853
	$	236,429	$	44,347

Schedule of debt ratios

The ratios as of December 31, 2014 are shown in the following table:

	Required Level	Actual Level
Interest Coverage Ratio	3.00 to 1 (minimum)	10.14
Leverage Ratio	3.25 to 1 (maximum)	2.78