CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income including noncontrolling interests	$ 27,558	$ 22,671
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Amortization of identifiable intangible assets	4,190	3,724
Depreciation expense	8,968	7,740
Bad debt expense	(297)	894
Deferred tax benefit	(162)	(2,263)
Amortization of debt financing costs	179	158
Gain on sale of assets	(357)	(327)
Changes in the fair value of contingent earn-out obligations	336	(125)
Stock-based compensation expense	3,349	3,178
(Increase) decrease in-
Receivables, net	(6,684)	(17,991)
Inventories	(532)	(1,440)
Prepaid expenses and other current assets	(1,649)	1,806
Costs and estimated earnings in excess of billings	(1,239)	(5,860)
Other noncurrent assets	(84)	(215)
Increase (decrease) in-
Accounts payable and accrued liabilities	6,429	25,958
Billings in excess of costs and estimated earnings	(4,220)	12,833
Other long-term liabilities	636	(81)
Net cash provided by operating activities	36,421	50,660
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(10,904)	(9,308)
Proceeds from sales of property and equipment	494	485
Cash paid for acquisitions, net of cash acquired	(58,490)	(5,861)
Net cash used in investing activities	(68,900)	(14,684)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolving line of credit	138,000	14,500
Payments on revolving line of credit	(112,000)	(35,000)
Payments on other debt	42
Payments on capital lease obligations	(133)	(163)
Debt financing costs	(789)
Payments of dividends to shareholders	(5,044)	(4,479)
Share repurchase program	(4,924)	(1,525)
Shares received in lieu of tax withholding	(1,304)	(937)
Excess tax benefit of stock-based compensation, financing activities		461
Proceeds from exercise of options	733	2,277
Distributions to noncontrolling interests		(2,115)
Payments for contingent consideration arrangements	(200)	(345)
Net cash provided by (used in) financing activities	14,297	(27,326)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(18,182)	8,650
CASH AND CASH EQUIVALENTS, beginning of period	56,464	32,064
CASH AND CASH EQUIVALENTS, end of period	$ 38,282	$ 40,714