Income Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Weighted Average Number of Common Shares Outstanding

The weighted average number of common shares outstanding is calculated as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Weighted average shares outstanding – basic		51,269		50,814		51,196		50,719
Effect of dilutive stock-based compensation		332		464		366		519
Effect of convertible notes		—		6,033		—		5,798
Effect of common stock warrants		—		3,224		—		3,042
Weighted average shares outstanding – diluted		51,601		60,535		51,562		60,078