Selected Quarterly Financial Information

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Information

13. Selected Quarterly Financial Information (Unaudited)

	Three Months Ended
	December 31,			September 30,			June 30,			March 31,
	2018			2018			2018			2018
	(in thousands, except per share data)
Total revenue	$	107,944		$	95,630		$	96,080		$	87,635
Gross profit	$	76,154		$	67,248		$	67,921		$	62,001
Loss from operations	$	(8,603	)	$	(9,237	)	$	(8,201	)	$	(15,702	)
Net loss	$	(9,607	)	$	(11,265	)	$	(10,620	)	$	(17,713	)
Net loss per share, basic and diluted	$	(0.32	)	$	(0.37	)	$	(0.35	)	$	(0.59	)
Shares used in computing net loss per common    share, basic and diluted		30,214,454			30,123,188			30,028,985			29,836,277

	Three Months Ended
	December 31,			September 30,			June 30,			March 31,
	2017			2017			2017			2017
	(in thousands, except per share data)
Total revenue	$	97,963		$	82,256		$	78,016		$	68,439
Gross profit	$	69,512		$	57,940		$	53,873		$	46,368
Loss from operations	$	(2,172	)	$	(4,418	)	$	(9,938	)	$	(13,051	)
Net loss	$	(4,311	)	$	(6,230	)	$	(11,610	)	$	(14,507	)
Net loss per share, basic and diluted	$	(0.15	)	$	(0.21	)	$	(0.40	)	$	(0.50	)
Shares used in computing net loss per common    share, basic and diluted		29,664,926			29,513,842			29,351,414			29,159,509