Earnings (loss) per common share (Tables)

6 Months Ended

Jun. 30, 2015

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,
	2015	2014	2015	2014
	(In thousands)
Weighted average common shares outstanding - basic	194,805	192,060	194,643	190,946
Effect of dilutive performance share awards	33	599	32	597
Weighted average common shares outstanding - diluted	194,838	192,659	194,675	191,543
Shares excluded from the calculation of diluted earnings per share	—	—	—	—