Consolidated Statements Of Other Comprehensive Income (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Consolidated Statements Of Other Comprehensive Income
Net income (loss)	$ 7,805	$ 3,481	$ 16,214	$ (17,750)
Foreign currency translation adjustment	577	(3,447)	3,211	(5,215)
Adjustment to post-retirement health care liability, net of tax	19	(6)	38	2
Adjustment to retirement benefit liability, net of tax	(31)	31	(62)	31
Reclassification of unrealized loss on interest rate swap, net of tax				1,206
Other comprehensive income (loss)	565	(3,422)	3,187	(3,976)
Total comprehensive income (Loss)	$ 8,370	$ 59	$ 19,401	$ (21,726)