Litigation, Commitments And Contingencies (Tables)

12 Months Ended

Dec. 31, 2011

Litigation, Commitments And Contingencies [Abstract]

Schedule Of Change In Warranty Liability

	Year Ended December 31,
	2011			2010
Beginning balance	$	2,555		$	2,913
Vocollect addition at acquisition		948			-
Payments or parts usage		(5,867	)		(4,688	)
Additional provision		7,217			4,330
Ending balance	$	4,853		$	2,555

Schedule Of Payments Due Under Non-Cancelable Future Leases

Year	Amount
2012	$	13.2
2013		13.5
2014		8.1
2015		5.0
2016		4.3