XML 41 R30.htm IDEA: XBRL DOCUMENT v3.23.1

Income per Share Attributable to Amphastar Pharmaceuticals, Inc. Stockholders (Tables)

3 Months Ended

Mar. 31, 2023

Income per Share Attributable to Amphastar Pharmaceuticals, Inc. Stockholders

Schedule of basic and diluted net income (loss) per share calculation

​

​	​	​	​	​	​	​
​	​	Three Months Ended
​	​	March 31,
​	​	2023		​	2022
​	​	(in thousands, except per share data)
Basic and dilutive numerator:		​			​
Net income	​	$	26,032	​	$	24,253
Denominator:	​	​	​	​	​	​
Weighted-average shares outstanding — basic	​		48,000	​	​	48,138
​	​	​	​	​	​	​
Net effect of dilutive securities:	​	​	​	​	​	​
Incremental shares from equity awards	​		3,970	​	​	3,841
Weighted-average shares outstanding — diluted	​		51,970	​		51,979
Net income per share — basic	​	$	0.54	​	$	0.50
Net income per share — diluted	​	$	0.50	​	$	0.47

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://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

+ Details

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