Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net income	$ 6,431	$ 7,732	$ 4,345	$ 4,085
Other comprehensive income:
Foreign currency translation adjustment	1,542	(804)	638	(3,901)
Net change in unrealized loss on cash flow hedges, net of tax	(956)	0	(956)	0
Adjustment to retirement benefit liability, net of tax	2	2	4	4
Adjustment to post-retirement health care liability, net of tax	18	0	37	38
Other comprehensive income (loss)	606	(802)	(277)	(3,859)
Total comprehensive income	$ 7,037	$ 6,930	$ 4,068	$ 226