Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net income	$ 39,823	$ 11,716
Adjustments to reconcile to net cash provided by (used in) operating activities:
Depreciation and amortization	29,117	26,234
Gain on sale of fixed assets	(246)	(363)
Equity-based compensation expense	5,246	5,494
Deferred income taxes	(1,900)	(3,035)
Equity in earnings of affiliated companies	(4,389)	(2,531)
Write-off of unamortized debt issuance costs		1,043
Reversal of earnout	(6,892)	(1,700)
(Gain) loss on foreign currency transactions	138	(1,426)
Other	(544)	(1,841)
Changes in operating assets and liabilities:
Restricted cash	(1,552)	600
Return on equity of affiliated companies	5,002	5,415
Receivables net, retainage and costs and estimated earnings in excess of billings	1,684	(42,127)
Inventories	(6,538)	(4,836)
Prepaid expenses and other assets	(2,120)	830
Accounts payable and accrued expenses	90	1,011
Other operating	1,773	(3,523)
Net cash provided by (used in) operating activities	58,692	(9,039)
Cash flows from investing activities:
Capital expenditures	(34,712)	(16,075)
Proceeds from sale of fixed assets	3,399	653
Patent expenditures	(420)	(967)
Receipt of cash from Hockway sellers due to final net working capital adjustments	1,048
Net cash used in investing activities	(73,680)	(158,722)
Payment to Fyfe NA sellers for final net working capital adjustments	(532)
Cash flows from financing activities:
Issuance of common stock upon stock option exercises, including tax benefit	840	3,551
Issuance of common stock in connection with acquisition of Fyfe NA		4,000
Investments from noncontrolling interests	4,939	301
Distributions/dividends to noncontrolling interests		(2,006)
Repurchase of common stock	(6,354)
Proceeds on notes payable	5,608	35
Principal payments on notes payable	(890)	(1,112)
Proceeds from line of credit	26,000
Proceeds from long-term debt	983	250,000
Principal payments on long-term debt	(18,750)	(97,500)
Debt issuance costs		(4,046)
Other financing activities		(269)
Net cash provided by financing activities	12,376	152,954
Effect of exchange rate changes on cash	(2,203)	(3,282)
Net decrease in cash and cash equivalents for the period	(4,815)	(18,089)
Cash and cash equivalents, beginning of period	106,129	114,829
Cash and cash equivalents, end of period	$ 101,314	$ 96,740