Income Taxes and Uncertain Tax Positions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Continuing Operations			28.80%	32.50%
Unrecognized Tax Benefits	$ 11,339		$ 11,339			$ 11,845
Unrecognized Tax Benefits, Interest on Income Taxes Expense	57	$ 154	(161)	$ (58)
Unrecognized Tax Benefits, Income Tax Penalties Expense	114	108	187	98
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	1,575		1,575			1,868
Unrecognized Tax Benefits, Income Tax Penalties Accrued	1,897		1,897			$ 1,845
Tax Adjustments, Settlements, and Unusual Provisions	$ 0	$ 0	$ 741	$ 1,075
Maximum [Member]
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Decrease In Unrecognized Tax Benefits Is Reasonably Possible					$ 1,900
Minimum [Member]
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Decrease In Unrecognized Tax Benefits Is Reasonably Possible					$ 1,800
Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Income Tax Examination Year Under Examination			2011
Foreign Tax Authority [Member] | The Netherlands [Member]
Income Tax Examination [Line Items]
Income Tax Examination Year Under Examination			2009
Foreign Tax Authority [Member] | United Kingdom [Member]
Income Tax Examination [Line Items]
Income Tax Examination Year Under Examination			2009
Foreign Tax Authority [Member] | Brazil [Member]
Income Tax Examination [Line Items]
Income Tax Examination Year Under Examination			2000
Foreign Tax Authority [Member] | Spain [Member]
Income Tax Examination [Line Items]
Income Tax Examination Year Under Examination			2010
Foreign Tax Authority [Member] | China [Member]
Income Tax Examination [Line Items]
Income Tax Examination Year Under Examination			2010
Foreign Tax Authority [Member] | Italy [Member]
Income Tax Examination [Line Items]
Income Tax Examination Year Under Examination			2007
State and Local Jurisdiction [Member]
Income Tax Examination [Line Items]
Income Tax Examination Year Under Examination			1993