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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ 322,656	$ 144,416	$ 155,557
Other comprehensive income (loss), net of tax provision:
Foreign currency translation adjustment, net of tax of $0, $0 and $0	13,949	(12,235)	10,210
Other, net of tax of $69, $392 and $0	(206)	(1,177)
Change in unrealized gain on foreign currency cash flow hedges, net of tax of $0, $0 and $0			410
Other comprehensive income (loss)	13,743	(13,412)	10,620
Comprehensive income	336,399	131,004	166,177
Less: Comprehensive income attributable to noncontrolling interests	16,027	11,901	2,381
Total comprehensive income attributable to Quanta shareholders	$ 320,372	$ 119,103	$ 163,796

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