Income Taxes (Effective tax rate reconciliation) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Federal tax	$ 13,505	$ 10,783	$ 22,282
State income taxes, net of federal tax provision (benefit)	29	213	(366)
Foreign income taxed at lower tax rates	(8,363)	(15,515)	(6,356)
U.S. tax impact of foreign operations	911	496	1,115
Foreign tax credits, net of valuation allowance	0	3,135	(5,843)
Goodwill impairment	904	0	0
Research and development	(2,294)	0	0
Liability for unrecognized tax benefits	7,802	4,217	107
U.S. provision-to-return adjustments	554	(102)	(167)
Valuation allowance - net operating loss carryforwards	0	0	0
Other	1,433	1,598	(615)
Income tax provision (benefit), Total	$ 14,481	$ 4,825	$ 10,157
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Income tax rate, Federal tax	35.00%	35.00%	35.00%
Income tax rate, State income taxes	0.10%	0.70%	(0.60%)
Income tax rate, Foreign income taxed at lower tax rates	(21.70%)	(50.40%)	(10.00%)
Income tax rate, U.S. tax impact of foreign operations	2.40%	1.60%	1.80%
Income tax rate, Valuation allowance - foreign tax credit carryforwards	0.00%	10.20%	(9.20%)
Income tax rate, Goodwill impairment	2.30%	0.00%	0.00%
Income tax rate, Research and development	(5.90%)	0.00%	0.00%
Income tax rate, Liability for unrecognized tax benefits	20.20%	13.70%	0.20%
Income tax rate, U.S. provision-to-return adjustment	1.40%	(0.30%)	(0.30%)
Income tax rate, Valuation allowance - net operating loss carryforwards	0.00%	0.00%	0.00%
Income tax rate, Other	3.70%	5.20%	(1.00%)
Income tax rate, Total	37.50%	15.70%	15.90%