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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
CONSOLIDATED BALANCE SHEETS [Abstract]
Allowances for doubtful accounts (in dollars)	$ 10,877us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent	$ 11,063us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Statement [Line Items]
Ordinary share, par value (in dollars per share)	$ 0.00375us-gaap_CommonStockParOrStatedValuePerShare	$ 0.00375us-gaap_CommonStockParOrStatedValuePerShare
Ordinary share, authorized shares	250,000us-gaap_CommonStockSharesAuthorized	250,000us-gaap_CommonStockSharesAuthorized
Ordinary share, shares issued	38,314us-gaap_CommonStockSharesIssued	45,444us-gaap_CommonStockSharesIssued
Ordinary share, shares outstanding	38,148us-gaap_CommonStockSharesOutstanding	39,778us-gaap_CommonStockSharesOutstanding
Treasury shares	166us-gaap_TreasuryStockShares	5,666us-gaap_TreasuryStockShares

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 4

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

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-Name Accounting Standards Codification

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.4)

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X

- Definition

Face amount or stated value per share of common stock.

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X

- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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X

- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Topic 210

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X

- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

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- Definition

Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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