Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Weighted Average Shares Outstanding

	Three months ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Basic shares outstanding		101,249		100,573		101,160		100,475
Effect of potential common stock:
Common stock awards		1,143		909		1,142		884
Senior subordinated convertible notes		74		87		74		109
Diluted shares outstanding		102,466		101,569		102,376		101,468