CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net earnings	$ 90,672	$ 70,017
Adjustments to reconcile net earnings to net cash used for operating activities:
Depreciation and amortization	65,196	58,873
Net (gain) loss on sale of assets	(397)	979
Gain on disposition of businesses	1,195	0
Deferred income taxes	(1,090)	3,194
Share-based compensation	7,545	7,920
Change in operating assets and liabilities, net of businesses acquired:
Accounts receivable, net	(80,416)	(75,263)
Inventories, net	(31,482)	(9,096)
Progress payments	(1,075)	6,847
Accounts payable and accrued expenses	(20,956)	(12,263)
Deferred revenue	21,587	(24,901)
Income taxes payable	7,786	(4,431)
Net pension and postretirement liabilities	(11,329)	19,024
Other current and long-term assets	3,220	(1,084)
Other current and long-term liabilities	5,692	(2,124)
Total adjustments	(36,914)	(32,325)
Net cash provided by operating activities	53,758	37,692
Cash flows from investing activities:
Proceeds from sales and disposals of long-lived assets	1,583	744
Acquisitions of intangible assets	(22)	(1,511)
Additions to property, plant, and equipment	(61,232)	(38,802)
Acquisition of businesses, net of cash acquired	(132,344)	(42,200)
Disposition of businesses	8,100	0
Net cash used for investing activities	(183,915)	(81,769)
Cash flows from financing activities:
Borrowings on debt	701,800	386,600
Principal payments on debt	587,296	325,247
Proceeds from exercise of stock options	10,669	9,731
Dividends paid	7,439	7,352
Excess tax benefits from share-based compensation	868	222
Net cash provided by financing activities	118,602	63,954
Effect of exchange-rate changes on cash	(1,582)	(974)
Net (decrease) increase in cash and cash equivalents	(13,137)	18,903
Cash and cash equivalents at beginning of period	68,119	65,010
Cash and cash equivalents at end of period	54,982	83,913
Supplemental disclosure of investing activities:
Fair value of assets acquired in current year acquisitions	157,575	49,766
Additional consideration paid on prior year acquisitions	0	1,153
Liabilities assumed from current year acquisitions	(20,199)	(8,033)
Cash acquired	(5,032)	(686)
Acquisition of new businesses	$ 132,344	$ 42,200