2.2.0.25falsefalse11801 - Disclosure - Subsequent Eventstruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $Duration_1_1_2010_To_12_31_2010http://www.sec.gov/CIK0000780571duration2010-01-01T00:00:002010-12-31T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit13Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0itri_SubsequentEventsAbstractitrifalsenadurationSubsequent Events [Abstract]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringSubsequent Events [Abstract]falsefalseSubsequent Events3false0us-gaap_ScheduleOfSubsequentEventsTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> Note 18:    Subsequent Events On January 20, 2011, we increased our $240 million multicurrency revolving line of credit to $315 million as approved by the participating lenders, the issuing agents, the swingline lender, and the administrative agent and as permitted by section 2.19 of Amendment No. 1 of our Credit Facility dated April 24, 2009. There were no other changes to the credit facility. The expanded multicurrency revolving line of credit will provide us with increased flexibility and liquidity for general corporate purposes. On February 23, 2011, a class action lawsuit was filed in U.S. Federal Court for the Eastern District of Washington alleging a violation of federal securities laws relating to a restatement of our financial results for the quarters ended March 31, June 30, and September 30, 2010. These revisions were made primarily to defer revenue that had been incorrectly recognized on one contract due to a misinterpretation of an extended warranty obligation. The effect was to reduce revenue and earnings in each of the first three quarters of the year. For the first nine months of 2010, total revenue was reduced by $6.1 million and diluted EPS was reduced by 11 cents. We intend to vigorously defend our interests. </div>Note 18:    Subsequent Events On January 20, 2011, we increased our $240 million multicurrency revolving line of credit to $315falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescribes disclosed significant events or transactions that occurred after the balance sheet date, but before the issuance of the financial statements. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, losses resulting from fire or flood, losses on receivables, significant realized and unrealized gains and losses that result from changes in quoted market prices of securities, declines in market prices of inventory, changes in authorized or issued debt (SEC), significant foreign exchange rate changes, substantial loans to insiders or affiliates, significant long-term investments, and substantial dividends not in the ordinary course of business.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 11 falsefalseSubsequent Events12Subsequent EventsUnKnownUnKnownUnKnownUnKnownfalsetrue