Pension and Other Postretirement Benefits (Details 3) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Defined benefit pension plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, related to pension plans with benefit obligations in excess of plan assets	$ 303,072	$ 327,038
Fair value of plan assets, related to pension plans with benefit obligations in excess of plan assets	224,469	251,965
Defined benefit pension plans, U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, related to pension plans with benefit obligations in excess of plan assets	271,459	297,067
Fair value of plan assets, related to pension plans with benefit obligations in excess of plan assets	204,270	234,305
Defined benefit pension plans, Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, related to pension plans with benefit obligations in excess of plan assets	31,613	29,971
Fair value of plan assets, related to pension plans with benefit obligations in excess of plan assets	$ 20,199	$ 17,660