Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Basic and Diluted Weighted Average Shares Outstanding

Basic and diluted weighted average shares outstanding were as follows:

	Three months ended June 30,				Six months ended June 30,
	2018		2017		2018		2017
Weighted average common shares		43,743,356		34,097,805		43,682,650		33,995,323
Dilutive common stock options and restricted stock units		480,561		437,427		433,961		433,483
Dilutive effect of convertible senior notes		791,802		559,582		578,134		286,991
Weighted average common shares, assuming dilution		45,015,720		35,094,814		44,694,745		34,715,797