Net (Loss) Income Per Share

A reconciliation of basic and diluted share amounts is as follows:



	Three Months Ended		Six Months Ended
	March 31, 2018	April 1, 2017	March 31, 2018	April 1, 2017
Basic weighted average common shares outstanding	277,114	280,215	276,985	279,439
Weighted average common stock equivalents from assumed exercise of stock options and stock units	—	2,541	—	2,842
Incremental shares from Convertible Notes premium	—	3,254	—	2,836
Diluted weighted average common shares outstanding	277,114	286,010	276,985	285,117
Weighted-average anti-dilutive shares related to:
Outstanding stock options and stock units	5,079	1,841	4,890	1,648
Convertible notes	1,079	—	1,406	—

In those reporting periods in which the Company has reported net income, anti-dilutive shares generally are comprised of those stock options that either have an exercise price above the average stock price for the period or the stock options’ combined exercise price and average unrecognized stock compensation expense upon exercise is greater than the average stock price. In those reporting periods in which the Company has a net loss, anti-dilutive shares are comprised of the impact of those number of shares that would have been dilutive had the Company had net income plus the number of common stock equivalents that would be anti-dilutive had the company had net income.