2.2.0.25falsefalse1040 - Disclosure - Foreign Exchange Instrumentstruefalsefalse1falsefalseUSDfalsefalse1/2/2011 - 4/2/2011 USD ($) USD ($) / shares $D2011Q1http://www.sec.gov/CIK0000350907duration2011-01-02T00:00:002011-04-02T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0thor_ForeignExchangeInstrumentsDisclosureAbstractthorfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseForeign Exchange Instruments3false0us-gaap_ForeignCurrencyDisclosureTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<table style="font-size:10pt; font-family:'Times New Roman',times,serif;"> <tr> <td> 4. Foreign Exchange Instruments   We utilize foreign currency forward exchange contracts and options to mitigate volatility resulting from future movements in foreign exchange rates that affect certain existing and forecasted foreign currency denominated sales and purchase transactions. We do not use derivative financial instruments for speculative or trading purposes. We routinely hedge our exposure to certain foreign currencies with various financial institutions in an effort to minimize the impact of certain currency exchange rate fluctuations. If a financial counterparty to any of our derivative arrangements experiences financial difficulties or is otherwise unable to honor the terms of the foreign currency forward contract, we may experience material financial losses.   The notional amount of foreign currency contracts with a maximum maturity of four months which do not qualify for hedge accounting, were as follows:   <table style="WIDTH: 86.66%; BORDER-COLLAPSE: collapse; MARGIN-LEFT: 0.5in" border="0" cellspacing="0" cellpadding="0" width="86%"> <tr style="HEIGHT: 0px"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.38%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="65%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.88%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 30.6%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="30%" colspan="5"> Notional Amounts</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.16%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">  </td></tr> <tr style="HEIGHT: 0px"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.38%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="65%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.88%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.84%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="13%" colspan="2"> April 2, 2011</td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.88%; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.86%; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="13%" colspan="2"> April 3, 2010</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.16%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">  </td></tr> <tr style="HEIGHT: 0px"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.38%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="65%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.88%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 30.6%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="30%" colspan="5"> (in thousands)</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.16%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">  </td></tr> <tr style="HEIGHT: 0px"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.38%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="top" width="65%"> Sales</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.88%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.54%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="12%"> 21,647</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.88%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.56%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="12%"> 7,583</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.16%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%">  </td></tr> <tr style="HEIGHT: 0px"> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none" width="424"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none" width="19"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none" width="8"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none" width="81"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none" width="19"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none" width="8"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none" width="82"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none" width="7"></td></tr></table>   As of April 2, 2011, we had forward contracts to sell euros to U.S. dollars with a notional value of 10.6 million, to sell U.S. dollars to euros with a notional value of $5.0 million and to sell U.K. pounds to euros with a notional value of £1.0 million, as compared to April 3, 2010, when we had two forward contracts, one to sell euros to U.S. dollars with a notional value of 4.7 million and one to sell U.K. pounds to euros with a notional value of £0.8 million.  As of April 2, 2011, our forward contracts had an average exchange rate of one U.S. dollar to 0.7300 euros and one U.K. pound to 1.1352 euros.   The following represents our realized fair value of the forward currency contracts and offsets to the foreign currency exchange gains and losses which were included in Interest income and other in the condensed consolidated statements of operations:   <table style="WIDTH: 90%; BORDER-COLLAPSE: collapse; MARGIN-LEFT: 15.85pt" border="0" cellspacing="0" cellpadding="0" width="90%"> <tr style="HEIGHT: 0px"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 66.66%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="66%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.76%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 29.46%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="29%" colspan="5"> Three Months Ended</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.12%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">  </td></tr> <tr style="HEIGHT: 0px"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 66.66%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="66%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.76%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="13%" colspan="2"> April 2, 2011</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="13%" colspan="2"> April 3, 2010</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.12%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">  </td></tr> <tr style="HEIGHT: 0px"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 66.66%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="66%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.76%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 29.46%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="29%" colspan="5"> (in thousands)</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.12%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">  </td></tr> <tr style="HEIGHT: 0px"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 66.66%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="66%"> Foreign currency exchange (loss) gain on foreign currency contracts </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.76%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.04%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="12%"> (365</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%"> )</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.04%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="12%"> 264</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.12%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%">  </td></tr> <tr style="HEIGHT: 0px"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 66.66%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="66%"> Foreign currency exchange (loss) on foreign translation adjustments </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.76%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="13%" colspan="2"> (136</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%"> )</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="13%" colspan="2"> (330</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.12%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%"> )</td></tr></table></td></tr></table> 4. Foreign Exchange Instruments   We utilize foreign currency forward exchange contracts and options to mitigate volatility resulting from futurefalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDisclosure of foreign currency transactions and translation. This may include description of foreign currency transactions, foreign currency gains and losses, explanation of change in cumulative translation adjustment, description of effect of subsequent foreign currency exchange rate change, cumulative translation adjustment movement, foreign currency translation adjustment by component movement, translation adjustment for net investment hedge movement, adjustment for long-term intercompany transactions, schedule of long-term intercompany balances and any other foreign currency transactions and translation related items.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 52 -Paragraph 30, 31, 32 falsefalseForeign Exchange Instruments12Foreign Exchange InstrumentsUnKnownUnKnownUnKnownUnKnownfalsetrue