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

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

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

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

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands, except per share amounts)	2018		2017		2018		2017
Numerator (basic and diluted)
Net income allocated to common shareholders for basic calculation	$	55,672	$	45,982	$	35,864	$	36,325
Effect of dilutive convertible notes		296		—		—		—
Net income allocated to common shareholders for diluted calculation		55,968		45,982		35,864		36,325
Denominator
Weighted average common shares outstanding, basic		46,308		39,844		42,443		39,774
Dilutive effect of convertible notes, restricted stock units and common stock options1		1,502		543		467		593
Weighted average common shares outstanding, diluted		47,810		40,387		42,910		40,367
Net income per share, basic	$	1.20	$	1.15	$	0.84	$	0.91
Net income per share, diluted	$	1.17	$	1.14	$	0.84	$	0.90