Income Per Share (Tables)

9 Months Ended

Sep. 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 September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Weighted average shares outstanding - basic		51,283		50,975		51,226		50,805
Effect of dilutive stock-based compensation		347		442		361		495
Effect of convertible notes		—		6,307		—		5,946
Effect of common stock warrants		—		3,435		—		3,156
Weighted average shares outstanding - diluted		51,630		61,159		51,587		60,402