Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Significant Accounting Policies

Schedule of changes in allowance for doubtful accounts

	Year Ended December 31,
In thousands	2013			2012			2011
Balance at beginnings of year	$	2,574		$	2,445		$	2,345
Additions charges to expense	47			722			478
Amounts recovered against the allowance, net of charges	(892		)	(593		)	(378		)
Balance at end of year	$	1,729		$	2,574		$	2,445

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	2013			2012
Equipment and furniture	$	2,323		$	2,774
Less accumulated amortization	(1,535		)	(1,604		)
Net book value	$	788		$	1,170

Schedule of information about the operations in different geographical areas

	Year Ended December 31,
In thousands	2013		2012		2011
Revenue (1)
United States	$	469,596	$	492,118	$	523,381
Other countries	90,013		88,973		90,889
Total revenue	$	559,609	$	581,091	$	614,270

	December 31,
In thousands	2013		2012
Property, plant and equipment (2)
United States	$	34,556	$	37,587
Other countries	6,155		6,504
Total property, plant and equipment	$	40,711	$	44,091

(1)	Geographic revenues are based on the location of the service being performed.
(2)	Property, plant and equipment are based on physical location.