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Condensed Unaudited Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Cash flows from operating activities: |  |  |  |
Net income | $ 18,373 |  | $ 14,170 |
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |  |
Depreciation and amortization | 31,753 |  | 20,954 |
Stock-based compensation expense | 2,357 |  | 993 |
Excess tax benefit from stock-based compensation | (903) | [1] | (97) | [1]
Non-cash interest expense | 2,239 |  | 2,128 |
Write-off of unamortized financing costs on redeemed debt | 1,508 |  | 0 |
Provision for doubtful accounts | 3,302 |  | 548 |
Provision for inventory obsolescence | 284 |  | 0 |
Gain on sale of assets | (683) |  | (324) |
Changes in assets and liabilities, net of assets acquired and liabilities assumed: |  |  |  |
Accounts receivable | (28,497) |  | (1,724) |
Inventories | 12,167 |  | 216 |
Deferred tax assets and liabilities, net | (3,492) |  | 10,222 |
Other assets, current and non-current portion | 6,811 |  | 1,760 |
Accounts payable and accrued expenses | (4,844) |  | 7,319 |
Billings in excess of costs and earnings | (19,596) |  | (14,335) |
Other liabilities, current and non-current portion | 11,289 |  | 5,855 |
Net cash provided by (used in) operating activities | 31,816 |  | 43,445 |
Cash flows (used in) provided by investing activities: |  |  |  |
Cash paid for acquisitions, net, including contingent consideration | (9,656) |  | (4,498) |
Capital expenditures | (25,851) |  | (14,097) |
Proceeds from sale of assets | 3,411 |  | 2,014 |
Net cash (used in) provided by investing activities | (32,096) |  | (16,581) |
Cash flows provided by (used in) financing activities: |  |  |  |
Proceeds from issuance of 4.875% senior notes | 400,000 |  | 0 |
Repayment of 7.625% senior notes | (150,000) |  | 0 |
Proceeds from credit facility | 231,600 |  | 166,700 |
Repayments of credit facility | (365,600) |  | (195,950) |
Repayments of other borrowings | (7,683) |  | (5,323) |
(Repayments of) proceeds from book overdrafts | (5,970) |  | 10,433 |
Payments of capital lease obligations | (11,438) |  | (4,185) |
Proceeds from stock option exercises and other share-based awards | 2,838 |  | 1,218 |
Excess tax benefit from stock-based compensation | 903 |  | 97 |
Payments for debt extinguishment, call premiums | (4,116) |  | 0 |
Payments of financing costs | (6,852) |  | (52) |
Net cash provided by (used in) financing activities | 83,682 |  | (27,062) |
Net increase (decrease) in cash and cash equivalents | 83,402 |  | (198) |
Net effect of currency translation on cash | (60) |  | 49 |
Cash and cash equivalents - beginning of period | 26,767 |  | 20,280 |
Cash and cash equivalents - end of period | 110,109 |  | 20,131 |
Cash and cash equivalents of discontinued operations | 862 |  | 4,286 |
Cash and cash equivalents of continuing operations | 109,247 |  | 15,845 |
Supplemental cash flow information: |  |  |  |
Interest paid | 10,720 |  | 6,423 |
Income taxes paid, net of refunds | 8,245 |  | 1,884 |
Supplemental disclosure of noncash information: |  |  |  |
Equipment acquired under capital lease | 23,002 |  | 3,914 |
Machinery and Equipment [Member] |  |  |  |
Supplemental disclosure of noncash information: |  |  |  |
Equipment acquired under financing arrangements | 14,569 |  | 0 |
Inventories [Member] |  |  |  |
Supplemental cash flow information: |  |  |  |
Receipt of inventory prepaid in prior year | 0 |  | 12,005 |
Contracts Accounted for under Percentage of Completion [Member] |  |  |  |
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |  |
Provision for losses on construction projects, net | $ (252) |  | $ (4,240) |
[1] | Excess tax benefits, which represent cash flows from tax deductions in excess of the tax effect of compensation expense recognized for stock options exercised and vested restricted shares, are classified as financing cash flows in the Company’s condensed unaudited consolidated statements of cash flows.

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- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes cash and cash equivalents within disposal group and discontinued operation. + References No definition available. + Details
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