Earnings (loss) per common share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Weighted average common shares outstanding

A reconciliation of the weighted average common shares outstanding used in the basic and diluted earnings (loss) per share calculations was as follows:

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2016	2015	2016	2015
	(In thousands)
Weighted average common shares outstanding - basic	195,304	194,805	195,294	194,643
Effect of dilutive performance share awards	395	33	384	32
Weighted average common shares outstanding - diluted	195,699	194,838	195,678	194,675
Shares excluded from the calculation of diluted earnings per share	—	—	—	—