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Summary of Significant Accounting Policies (Schedule Of Business Combination Consideration Transferred) (Details) (PST Eletronicaltda [Member], USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended
	Jan. 05, 2012	Dec. 31, 2011 Noncontrolling Interest [Member]
Schedule of Equity Method Investments [Line Items]
Cash	$ 19,779	$ 29,669
Common Shares (1,940,413 shares)	10,197	15,310
Fair value of consideration transferred	29,976	44,979
Fair value of the Company's previously held equity interest		104,118
Fair value of noncontrolling interest		48,727
Total fair value of PST		$ 197,824
Business acquisition, common shares	1,293,609	1,940,413

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Number of shares of equity interests issued or issuable to acquire entity.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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Fair value at acquisition-date of the assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interests issued by the acquirer, including but not limited to, instruments or interests issued or issuable in consideration for the business combination.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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