U.K. Pension Plan Major Categories of Plan Assets (Details) - Freightliner U.K. Pension Plan [Member] - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 277,308	$ 274,787
Growth pooled fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	182,224
Private Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	31,237
Government bond pooled fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	52,463
Infrastructure pooled fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10,911
Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	473
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	473
Fair Value, Inputs, Level 1 [Member] | Growth pooled fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Fair Value, Inputs, Level 1 [Member] | Private Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Fair Value, Inputs, Level 1 [Member] | Government bond pooled fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Fair Value, Inputs, Level 1 [Member] | Infrastructure pooled fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Fair Value, Inputs, Level 1 [Member] | Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	473
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	234,687
Fair Value, Inputs, Level 2 [Member] | Growth pooled fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	182,224
Fair Value, Inputs, Level 2 [Member] | Private Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Fair Value, Inputs, Level 2 [Member] | Government bond pooled fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	52,463
Fair Value, Inputs, Level 2 [Member] | Infrastructure pooled fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Fair Value, Inputs, Level 2 [Member] | Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0