2.2.0.7 false Commitments and Contingencies 0211 - Disclosure - Commitments and Contingencies true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Commitments and Contingencies [Abstract] 0 adtn_CommitmentsAndContingenciesAbstract adtn false na duration Commitments And Contingencies Abstract. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string Commitments And Contingencies Abstract. false 3 COMMITMENTS AND CONTINGENCIES 1 us-gaap_CommitmentsAndContingenciesDisclosureTextBlock us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged Note 11 - us-gaap:CommitmentsAndContingenciesDisclosureTextBlock--> <div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><b>11. COMMITMENTS AND CONTINGENCIES</b> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt">In the ordinary course of business, we may be subject to various legal proceedings and claims, including employment disputes, patent claims, disputes over contract agreements and other commercial disputes. In some cases, claimants seek damages or other relief, such as royalty payments related to patents, which, if granted, could require significant expenditures. Although the outcome of any claim or litigation can never be certain, it is our opinion that the outcome of all contingencies of which we are currently aware will not materially affect our business, operations, financial condition or cash flows. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt">We have committed to invest up to an aggregate of $7.9&#160;million in two private equity funds, and we have contributed $8.0&#160;million as of June&#160;30, 2010, of which $7.5&#160;million has been applied to these commitments. See Note 4 of Notes to Consolidated Financial Statements for additional information. </div> </div> <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged Note false false false us-types:textBlockItemType textblock Includes disclosure of commitments and contingencies. This element may be used as a single block of text to encapsulate the entire disclosure including data and tables. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 14 -Paragraph 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 false 1 2 false UnKnown UnKnown UnKnown false true