2.2.0.7 false PARENTHETICAL DATA TO THE CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) 002010 - Statement - PARENTHETICAL DATA TO THE CONSOLIDATED BALANCE SHEETS (Unaudited) true false In Thousands false false 1 USD false false u001 Standard http://www.xbrl.org/2003/instance shares xbrli 0 u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 2 USD false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ 3 Current Assets: 1 us-gaap_AssetsCurrentAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 4 Accounts receivable less allowance for uncollectible accounts: 2010-$28,853; 2009 - $32,341 2 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent us-gaap true credit instant No definition available. false false false false false false false false false false false false 1 true true false false 28853000 28853 false false false 2 true true false false 32341000 32341 false false false xbrli:monetaryItemType monetary A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 false 2 2 false Thousands UnKnown UnKnown false true