Inventories (Tables)

3 Months Ended

Mar. 31, 2012

Inventories [Abstract]

Schedule Of Inventories

	March 31, 2012			December 31, 2011
Raw materials, including parts and subassemblies	$	250,433		$	202,542
Work-in-process		53,719			57,264
Finished goods		71,270			67,748
		375,422			327,554
Excess of FIFO costs over LIFO costs		(18,762	)		(15,875	)
Inventories, net	$	356,660		$	311,679