The following table reflects the calculation of basic and diluted earnings per share (in thousands, except per share amounts):

 

		Quarter Ended								Six Months Ended
		December 31,								December 31,
		2018				2017				2018				2017
Earnings per share – basic:
Net income		$	17,556			$	48,847			$	34,958			$	64,710
Income allocated to participating securities			(18	)			(41	)			(34	)			(50	)
Income available to common shareholders		$	17,538			$	48,806			$	34,924			$	64,660
Weighted-average shares outstanding – basic			37,766				37,449				37,732				37,412
Earnings per share – basic		$	0.46			$	1.30			$	0.93			$	1.73
Earnings per share – diluted:
Net income		$	17,556			$	48,847			$	34,958			$	64,710
Income allocated to participating securities			(18	)			(41	)			(34	)			(50	)
Income available to common shareholders		$	17,538			$	48,806			$	34,924			$	64,660
Weighted-average shares outstanding – basic			37,766				37,449				37,732				37,412
Dilutive effect of stock options and restricted stock units			982				477				1,050				404
Weighted-average common shares outstanding – diluted			38,748				37,926				38,782				37,816
Earnings per share – diluted		$	0.45			$	1.29			$	0.90			$	1.71

 

The dilutive effect of stock options and restricted stock units in the above table excludes all options for which the aggregate exercise proceeds exceeded the average market price for the period. The number of potentially dilutive option shares excluded from the million for the months ended and respectively.