CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 26,740	$ 13,785
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	12,043	8,303
Amortization of intangible assets	5,532	2,877
Loss (gain) on sale of property and equipment	(37)	(1,228)
Income from non-consolidated entities	(5,226)	(2,724)
Non-consolidated entity distributions	5,997	5,190
Contingent earnout liabilities	603	631
Changes in assets and liabilities:
Customer retention deposits and restricted cash	(5,001)	(2,465)
Accounts receivable	53,023	(13,436)
Costs and estimated earnings in excess of billings	(16,309)	(10,713)
Inventory, prepaid expenses and other current assets	(1,466)	(4,851)
Accounts payable	1,303	1,824
Billings in excess of costs and estimated earnings	(33,723)	3,537
Accrued expenses and other current liabilities	10,743	3,068
Other long-term liabilities	(2,285)	1,354
Net cash provided by operating activities	51,937	5,152
Cash flows from investing activities:
Purchase of property and equipment	(10,810)	(13,789)
Proceeds from sale of property and equipment	997	2,013
Sale of short-term investments	26,000	25,058
Purchase of short-term investments	(23,000)	(28,000)
Net cash used in investing activities	(6,813)	(14,718)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	2,500	20,000
Repayment of capital leases	(2,680)	(1,905)
Repayment of long-term debt	(7,900)	(3,234)
Repayment of subordinated debt	(13,474)	(7,166)
Proceeds from issuance of common stock	822	4,114
Purchase of Unit Purchase Option	(2,030)
Dividends paid	(2,510)	(2,124)
Cash distributions to James shareholders		(1,966)
Net cash provided by (used in) financing activities	(25,272)	7,719
Cash flows from discontinued operations:
Operating activities		(874)
Net cash used in discontinued operations		(874)
Net change in cash and cash equivalents	19,852	(2,721)
Cash and cash equivalents at beginning of the period	115,437	90,004
Cash and cash equivalents at end of the period	135,289	87,283
Cash paid during the period for:
Interest	2,724	2,527
Income taxes	12,693	7,688
Non-cash activities:
Accrued dividends declared	$ 1,276	$ 1,107