Inventories (Tables)

12 Months Ended

Dec. 31, 2011

Inventories [Abstract]

Schedule Of Inventories

	2011			2010
Raw materials, including parts and subassemblies	$	202,542			163,192
Work-in-process		57,264			38,419
Finished goods		67,748			54,898
		327,554			256,509
Excess of FIFO costs over LIFO costs		(15,875	)		(15,024	)
Inventories, net	$	311,679			241,485