Weighted Average Shares Outstanding (Tables)

12 Months Ended

Dec. 31, 2015

Weighted Average Shares Outstanding [Abstract]

Schedule of Weighted Average Number of Shares

A reconciliation of the weighted-average number of common shares outstanding used in the calculation of basic and diluted earnings per share follows:

	Weighted-Average Common Shares Outstanding
	2015	2014	2013
Basic	55,028,063	54,791,030	53,860,308
Dilutive effect of:
Stock options	206,778	355,595	575,202
Performance share awards	278,378	319,704	280,488
Convertible senior subordinated debt	—	245,230	209,321
Non-Employee Director Deferred Stock Plan	—	11,708	48,025
Diluted	55,513,219	55,723,267	54,973,344