Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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- Definition

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Article 5

+ Details

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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- Details

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Segment Information (Schedule of Segment Perfomance Measures by Segment) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Segment Reporting Information [Line Items]
Net sales	$ 123,115	$ 150,871	$ 113,956	$ 111,748	$ 110,949	$ 121,415	$ 110,707	$ 101,317	$ 499,690	$ 444,388	$ 412,428
Gross profit	24,531	31,527	20,708	21,505	20,714	22,155	20,644	18,519	98,271	82,032	65,838
Income before income taxes									34,550	24,740	16,962
Operating Segments [Member] \| Human Health [Member]
Segment Reporting Information [Line Items]
Net sales									129,667	105,249	69,856
Gross profit									39,306	29,932	15,534
Income before income taxes									17,276	11,683	2,898
Operating Segments [Member] \| Pharmaceutical Ingredients [Member]
Segment Reporting Information [Line Items]
Net sales									184,852	162,998	149,340
Gross profit									31,367	25,472	23,897
Income before income taxes									13,294	8,066	7,294
Operating Segments [Member] \| Performance Chemicals [Member]
Segment Reporting Information [Line Items]
Net sales									185,171	176,141	193,232
Gross profit									27,598	26,628	26,407
Income before income taxes									10,400	10,570	10,198
Unallocated Corporate [Member]
Segment Reporting Information [Line Items]
Income before income taxes									$ (6,420)	$ (5,579)	$ (3,428)