Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2011

Net Rental Expense Under Operating Leases

Net rental expense under operating leases follows:

In thousands	2011			2010			2009
Gross rental expense	$	39,808		$	32,662		$	32,799
Sublease rental income		(455	)		(225	)		(74	)
Net rental expense	$	39,353		$	32,437		$	32,725

Future Minimum Lease Commitments Under Non-Cancelable Operating Leases

Future minimum lease commitments under non-cancelable operating leases, principally related to facilities, vehicles, and machinery and equipment are as follows:

In thousands	2012			2013			2014			2015			2016			Thereafter			Total
Minimum lease payments	$	25,961		$	19,343		$	15,944		$	12,689		$	10,331		$	16,794		$	101,062
Minimum sublease rentals		(280	)		(283	)		(285	)		(118	)		(103	)		(103	)		(1,172	)
Net future minimum lease commitments	$	25,681		$	19,060		$	15,659		$	12,571		$	10,228		$	16,691		$	99,890

Changes in Carrying Amount of Service and Product Warranties

The changes in the carrying amount of service and product warranties for the years ended December 31, 2011 and 2010 were as follows:

In thousands	2011			2010
Balance at beginning of the year	$	30,050		$	24,288
Service and product warranty provision		50,096			56,553
Payments		(53,937	)		(50,729	)
Acquired		3,575			—
Translation		(429	)		(62	)
Balance at end of the period	$	29,355		$	30,050