Pension and Other Postretirement Benefit Plans (Fair values of the plans assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Financial instruments with significant Level 3 inputs
Foreign currency translation adjustments	$ 2,428		$ 1,796	$ (628)
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	43,145		36,895	33,082
Financial instruments with significant Level 3 inputs
Beginning balance, December 31, 2012	14,831
Total unrealized gains included in net gain	1,162	[1]
Foreign currency translation adjustments	412
Beginning balance, December 31, 2013	16,405
Foreign Plan [Member] | Held in Swiss Franc, Euro and USD [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	2,650
Foreign Plan [Member] | Investment Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	23,450
Foreign Plan [Member] | Real estate investment fund
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	15,756
Foreign Plan [Member] | Fixed income / Bond securities:
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	632
Foreign Plan [Member] | Real estate investment in specific properties 100% owned by the plan
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	649
Foreign Plan [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	8
Foreign Plan [Member] | Active Market Prices (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	26,732
Foreign Plan [Member] | Active Market Prices (Level 1) | Held in Swiss Franc, Euro and USD [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	2,650
Foreign Plan [Member] | Active Market Prices (Level 1) | Investment Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	23,450
Foreign Plan [Member] | Active Market Prices (Level 1) | Real estate investment fund
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	0
Foreign Plan [Member] | Active Market Prices (Level 1) | Fixed income / Bond securities:
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	632
Foreign Plan [Member] | Active Market Prices (Level 1) | Real estate investment in specific properties 100% owned by the plan
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	0
Foreign Plan [Member] | Active Market Prices (Level 1) | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	0
Foreign Plan [Member] | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	8
Foreign Plan [Member] | Significant Observable Inputs (Level 2) | Held in Swiss Franc, Euro and USD [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	0
Foreign Plan [Member] | Significant Observable Inputs (Level 2) | Investment Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	0
Foreign Plan [Member] | Significant Observable Inputs (Level 2) | Real estate investment fund
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	0
Foreign Plan [Member] | Significant Observable Inputs (Level 2) | Fixed income / Bond securities:
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	0
Foreign Plan [Member] | Significant Observable Inputs (Level 2) | Real estate investment in specific properties 100% owned by the plan
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	0
Foreign Plan [Member] | Significant Observable Inputs (Level 2) | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	8
Foreign Plan [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	16,405
Foreign Plan [Member] | Significant Unobservable Inputs (Level 3) | Held in Swiss Franc, Euro and USD [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	0
Foreign Plan [Member] | Significant Unobservable Inputs (Level 3) | Investment Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	0
Foreign Plan [Member] | Significant Unobservable Inputs (Level 3) | Real estate investment fund
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	15,756
Foreign Plan [Member] | Significant Unobservable Inputs (Level 3) | Fixed income / Bond securities:
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	0
Foreign Plan [Member] | Significant Unobservable Inputs (Level 3) | Real estate investment in specific properties 100% owned by the plan
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	649
Foreign Plan [Member] | Significant Unobservable Inputs (Level 3) | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets of pension plan	$ 0

[1] Total unrealized gains are reported as a component of the pension adjustment in accumulated other comprehensive income in the consolidated statement of stockholders’ equity.