Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Cash Flows

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Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Cash Flows from Operating Activities:      
Net income $ 144,416 $ 155,557 $ 163,535
Adjustments to reconcile net income to net cash provided by operating activities -      
Depreciation 116,068 107,507 86,862
Amortization of intangible assets 29,953 38,568 38,952
Non-cash interest expense   1,704 4,333
Amortization of debt issuance costs 901 642 921
Amortization of deferred revenues (11,415) (12,471) (13,987)
Loss on sale of property and equipment 854 4,650 8,758
Non-cash loss on early extinguishment of debt   4,797  
Foreign currency (gain) loss 1,227 (328) (267)
Provision for (recovery of) doubtful accounts 1,163 (142) 2,690
Deferred income tax provision 7,017 36,430 26,911
Non-cash stock-based compensation 21,618 23,048 19,875
Tax impact of stock-based equity awards (1,365) (2,161) 1,509
(Increase) decrease in -      
Accounts and notes receivable (311,761) (8,536) 253,070
Costs and estimated earnings in excess of billings on uncompleted contracts (65,916) (66,481) 6,002
Inventories (18,529) (17,127) 7,536
Prepaid expenses and other current assets 10,352 (12,274) (10,580)
Increase (decrease) in -      
Accounts payable and accrued expenses and other non-current liabilities 221,528 (20,352) (170,010)
Billings in excess of costs and estimated earnings on uncompleted contracts 77,683 10,462 (50,267)
Other, net (5,764) (3,235) 1,055
Net cash provided by operating activities 218,030 240,258 376,898
Cash Flows from Investing Activities:      
Proceeds from sale of property and equipment 9,903 25,651 9,064
Additions of property and equipment (172,005) (149,653) (164,980)
Cash paid for acquisitions, net of cash acquired (79,660) (130,251) 36,234
Payment to acquire equity method investments (35,000)    
Cash paid for other investments (4,000)    
Cash paid for non-compete agreement (455)    
Net cash used in investing activities (281,217) (254,253) (119,682)
Cash Flows from Financing Activities:      
Proceeds from other long-term debt 4,343 1,183 5,316
Payments on other long-term debt (5,680) (3,438) (3,301)
Payments on convertible subordinated notes   (143,750)  
Debt issuance and amendment costs (4,127)    
Distributions to noncontrolling interests (5,954) (2,395)  
Tax impact of stock-based equity awards 1,365 2,161 (1,509)
Exercise of stock options 867 534 975
Repurchase of common stock (149,547)    
Net cash provided by (used in) financing activities (158,733) (145,705) 1,481
Effect of foreign exchange rate changes on cash and cash equivalents (1,952) (708) 3,031
Net increase (decrease) in cash and cash equivalents (223,872) (160,408) 261,728
Cash and cash equivalents, beginning of year 539,221 699,629 437,901
Cash and cash equivalents, end of year 315,349 539,221 699,629
Cash (paid) received during the year for -      
Interest paid (701) (3,479) (5,864)
Redemption premium on convertible subordinated notes   (2,310)  
Income tax paid (13,306) (108,700) (56,565)
Income tax refunds $ 6,502 $ 9,707 $ 2,385