Weighted Average Shares Outstanding and Net (Loss) Income Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Summary of Reconciliation of Weighted Average Shares Outstanding in Basic and Diluted Net (Loss) Income Per Share

The following table presents a reconciliation of the weighted average shares outstanding used in calculating basic and diluted net (loss) income per share as well as the calculation of basic and diluted net (loss) income per share:

	Three Months Ended June 30,					Six Months Ended June 30,
(in thousands, except per share amounts)	2018			2017		2018			2017
Numerator (basic and diluted)
Net (loss) income allocated to common shareholders for basic calculation	$	(8,385	)	$	14,133	$	(19,808	)	$	(9,657	)
Effect of dilutive convertible notes		—			—		—			—
Net (loss) income allocated to common shareholders for diluted calculation		(8,385	)		14,133		(19,808	)		(9,657	)
Denominator
Weighted average common shares outstanding, basic		41,044			39,827		40,074			39,738
Dilutive effect of convertible notes, restricted stock units and common stock options1		—			566		—			—
Weighted average common shares outstanding, diluted		41,044			40,393		40,074			39,738
Net (loss) income per share, basic	$	(0.20	)	$	0.35	$	(0.49	)	$	(0.24	)
Net (loss) income per share, diluted	$	(0.20	)	$	0.35	$	(0.49	)	$	(0.24	)

¹Due to the net losses, shares related to convertible notes and restricted stock units representing 960,000 and 732,000 for the three and six months ended June 30, 2018, respectively, and 618,000 related to restricted stock units for the six months ended June 30, 2017 have been excluded from the number of shares used in calculating diluted net loss per share, as their inclusion would be antidilutive.