Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Income Statement [Abstract]        
Revenues $ 1,864,550 $ 1,474,377 $ 3,627,124 $ 3,060,087
Cost of services (including depreciation) 1,583,102 1,233,093 3,073,605 2,580,530
Gross profit 281,448 241,284 553,519 479,557
Selling, general and administrative expenses 139,440 119,031 312,771 232,712
Amortization of intangible assets 8,615 5,079 16,860 10,380
Operating income 133,393 117,174 223,888 236,465
Interest expense (1,128) (503) (2,110) (1,005)
Interest income 599 569 2,144 1,091
Other income (expense), net (1,233) (353) (590) (866)
Income before income taxes 131,631 116,887 223,332 235,685
Provision for income taxes 46,187 42,161 79,240 84,102
Net income 85,444 74,726 144,092 151,583
Less: Net income attributable to non-controlling interests 4,362 4,489 8,602 9,265
Net income attributable to common stock $ 81,082 $ 70,237 $ 135,490 $ 142,318
Earnings per share attributable to common stock-basic and diluted $ 0.37 $ 0.33 $ 0.62 $ 0.67
Shares used in computing earnings per share:        
Weighted average basic shares outstanding 219,612 214,314 219,345 213,833
Weighted average diluted shares outstanding 219,642 214,368 219,375 213,886