XML 30 R18.htm IDEA: XBRL DOCUMENT v3.10.0.1

Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Share

The computation of basic and diluted EPS is as follows (in thousands, except per share amounts):

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2018				2017				2018				2017
Numerator:
Net income		$	20,292			$	10,229			$	48,705			$	33,987
Denominator:
Weighted-average shares outstanding—basic			42,721				40,700				42,178				39,977
Effect of dilutive securities:
Options to purchase common stock			3,239				3,078				2,780				3,593
Employee stock purchase plan shares			270				322				273				250
Restricted stock			346				145				229				99
Weighted-average shares outstanding—diluted			46,576				44,245				45,460				43,919
Basic EPS		$	0.47			$	0.25			$	1.15			$	0.85
Diluted EPS		$	0.44			$	0.23			$	1.07			$	0.77
Anti-dilutive equity awards under stock-based award plans    excluded from the determination of diluted EPS			167				899				167				899

X

- References

No definition available.

+ Details

Name:	us-gaap_EarningsPerShareAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

+ Details

Name:	us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration