Income Taxes, Operating Loss Carryforwards (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Loss Carryforwards [Line Items]
Tax-effected valuation allowances	$ 23,864
Net carrying value of tax credits	788
Undistributed earnings of foreign subsidiaries	59,769	42,943
Reconciliation of beginning and ending amount of gross unrecognized tax benefits [Roll Forward]
Balance, beginning of period	2,093	1,362	4,249
Reductions related to settlements	0	(31)	0
Additions related to tax positions in current year	351	0	181
Additions related to tax positions in prior years	162	888	91
Reductions due to statute closures	(383)	(141)	(3,184)
Reductions for tax positions in prior years	(444)	0	0
Foreign currency translation	(21)	15	25
Balance, end of period	1,758	2,093	1,362
U.S. [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	62,488
Operating loss carryforwards, expiration dates	Dec. 31, 2017
U.S. [Member] | Income Tax Credit Carryforward [Member]
Operating Loss Carryforwards [Line Items]
Tax credit carryforward	3,164
Foreign [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	62,708
Operating loss carryforwards, expiration dates	Dec. 31, 2017
Foreign [Member] | Capital Loss Carryforward [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	26,639
Tax credit carryforward	2,823
Tax credit carryforwards, valuation allowance	2,035
Tax credit carryforward, expiration date	Dec. 31, 2016
Foreign [Member] | Income Tax Credit Carryforward [Member]
Operating Loss Carryforwards [Line Items]
Tax credit carryforward	$ 4,780