CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income including noncontrolling interests	$ 42,557	$ 16,778
Adjustments to reconcile net income to net cash provided by (used in) operating activities-
Amortization of identifiable intangible assets	5,601	5,445
Depreciation expense	11,785	9,917
Goodwill impairment		727
Bad debt expense	1,132	767
Deferred tax expense (benefit)	(2,755)	(3,899)
Amortization of debt financing costs	238	213
Gain on sale of assets	(625)	(748)
Changes in the fair value of contingent earn-out obligations	(125)	210
Stock-based compensation expense	4,254	3,492
(Increase) decrease in-
Receivables, net	(1,283)	(428)
Inventories	(218)	(111)
Prepaid expenses and other current assets	27	2,755
Costs and estimated earnings in excess of billings	(8,651)	(1,976)
Other noncurrent assets	(275)	46
Increase (decrease) in-
Accounts payable and accrued liabilities	19,986	(529)
Billings in excess of costs and estimated earnings	2,912	2,955
Other long-term liabilities	23	1,868
Net cash provided by operating activities	74,583	37,482
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(15,216)	(15,367)
Proceeds from sales of property and equipment	891	1,232
Cash paid for acquisitions, net of cash acquired	(6,158)	(54,204)
Net cash used in investing activities	(20,483)	(68,339)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolving line of credit	24,500	113,500
Payment on revolving line of credit	(53,000)	(71,500)
Payments on other long-term debt		(2,000)
Payments on capital lease obligations	(277)	(219)
Debt financing costs		(563)
Payments of dividends to shareholders	(6,924)	(6,209)
Share repurchase program	(4,930)	(6,282)
Shares received in lieu of tax withholding	(937)	(531)
Excess tax benefit of stock-based compensation	747	98
Proceeds from exercise of options	2,971	1,104
Distributions to noncontrolling interests	(2,897)	(4,713)
Payments for contingent consideration arrangements	(345)
Net cash provided by (used in) financing activities	(41,092)	22,685
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	13,008	(8,172)
CASH AND CASH EQUIVALENTS, beginning of period	32,064	52,054
CASH AND CASH EQUIVALENTS, end of period	$ 45,072	$ 43,882