Changes in Zygo Corporation's Ownership Interest in Subsidiary (Detail) - Equity of changes in ownership interest (USD $) In Thousands, unless otherwise specified	3 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Net income attributable to Zygo Corporation	$ 2,388	$ 6,469
Transfers to the noncontrolling interest Decrease in Zygo Corporations paid in capital for purchase of noncontrolling interest	2,749
Net transfers to noncontrolling interest	2,749
Change from net income attributable to Zygo Corporations shareholders and transfers to noncontrolling interest	$ (361)	$ 6,469

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

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Reference 8: http://www.xbrl.org/2003/role/presentationRef

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Reference 16: http://www.xbrl.org/2003/role/presentationRef

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