Earnings (Loss) per Share

We include restricted stock units for which no future service is required as a condition to the delivery of the underlying common stock in our calculation of weighted average shares outstanding. As we incurred a net loss for the nine months ended September 30, 2017, diluted loss per share for this period is computed on the same basis as basic loss per share, as the inclusion of any other potential shares outstanding would be anti-dilutive. Reconciliation of the amounts used in the basic and diluted earnings (loss) per common share computations for the three and nine months ended September 30, 2017 and 2016, are as follows (shares in thousands):



	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2016	2017	2016
Diluted weighted average shares calculation:
Weighted average shares outstanding (basic)	355,442	354,215	355,164	353,929
Share-based awards	3,402	2,137	—	2,051
Weighted average shares outstanding (diluted)	358,844	356,352	355,164	355,980

We excluded the following items from diluted earnings per common share for the three and nine months ended September 30, 2017 and 2016, because they were anti-dilutive (shares in thousands):



	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2016	2017	2016
Share-based awards	2,789	1,610	5,391	1,679