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Operating Leases
12 Months Ended
Dec. 31, 2011
Operating Leases [Abstract]  
Leases of Lessee Disclosure
Operating Leases

Rental expense for all non-cancelable operating leases, primarily for warehouses, was $18.6 million, $18.4 million and $17.9 million for the years ended December 31, 2011, 2010 and 2009, respectively.

Future minimum rentals under operating leases are as follows (dollars in thousands):
2012
2013
2014
2015
2016
2017 and
thereafter
 
$16,735
$14,422
$12,004
$8,238
$7,317
$39,813