Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Calculation of Basic and Diluted Earnings per Share

The following table sets forth the calculation of basic and diluted earnings per share:

		Three Months Ended
		March 31,
(in thousands, except per share data)			2018		2017
Net income (loss)		$	(23,641)	$	8,555
Denominator for basic earnings per share - weighted-average number of
	common shares outstanding during the period		48,517		49,511
Incremental common shares attributable to exercise of dilutive options			—		361
Incremental common shares attributable to outstanding restricted
	stock units		—		208
Denominator for diluted earnings per share			48,517		50,080
Basic earnings (loss) per share			$(0.49)		$0.17
Diluted earnings (loss) per share			$(0.49)		$0.17