Consolidated Condensed Statement of Changes In Shareholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Paid-in Capital	Accumulated Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2013	$ 232,094	$ 232,067	$ (9,582)	$ 14,812	$ (5,203)
Beginning Balance (in shares) at Dec. 31, 2013	34,929,334	34,929,000
Exercise of Common Stock options for cash	6,282	8,456	(2,174)
Exercise of Common Stock options for cash (in shares)		650,000
Tax benefit from exercises of Common Stock options	4,004		4,004
Stock option compensation	1,423		1,423
Common Stock issued to Board of Directors and employees	2,026	2,026
Common Stock issued to Board of Directors and employees (in shares)		62,000
Interest rate hedge, net	81				81
Foreign currency hedge, net	(411)				(411)
Currency translation, net	(15,671)				(15,671)
Net income	50,290			50,290
Ending Balance at Sep. 30, 2014	$ 280,118	$ 242,549	$ (6,329)	$ 65,102	$ (21,204)
Ending Balance (in shares) at Sep. 30, 2014	35,641,556	35,641,000