Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Reconciliation of Weighted Average Shares Used in Calculating Basic and Diluted Earnings Per Share

A reconciliation of weighted average shares used in calculating basic and diluted earnings per share follows:

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2015		2014		2015		2014
Basic		48,243		48,551		48,201		49,034
Effect of exercise of stock options		82		1,016		91		1,061
Effect of assumed vesting of restricted stock		1,270		1,339		1,286		1,361
Effect of convertible notes subject to conversion		—		5,743		1,174		5,240
Effect of convertible notes warrants subject to conversion		—		1,946		—		1,541
Diluted		49,595		58,595		50,752		58,237