Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Significant Accounting Policies

Schedule of changes in allowance for doubtful accounts

	Year Ended December 31,
In thousands	2012			2011			2010
Balance at beginning of year	$	3,230		$	3,096		$	2,784
Additions charged to expense	1,099			1,396			1,602
Amounts recovered against the allowance, net of charges	(927		)	(1,262		)	(1,290		)
Balance at end of year	$	3,402		$	3,230		$	3,096

Schedule of estimated useful lives of property, plant and equipment

Buildings and improvements	10 to 40 years
Software	3 to 10 years
Equipment and furniture	3 to 20 years

Schedule of capital lease assets

	December 31,
In thousands	2012			2011
Equipment and furniture	$	2,774		$	2,749
Less accumulated amortization	(1,604		)	(1,606		)
Net book value	$	1,170		$	1,143