Acquisitions (Textuals) (Details) $ in Thousands, € in Millions				12 Months Ended
	Nov. 30, 2015 EUR (€) Facility	Oct. 21, 2015 USD ($)	Jan. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($) location states	Dec. 31, 2013 USD ($)
Business Acquisition [Line Items]
Acquisition contingency payments recorded as additional Goodwill				$ 5,400	$ 1,500
Pro forma information, earnings adjustments				(69,450)	(51,315)
2015 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date				26,100
Finite-lived intangible assets acquired				61,300
GWR Bearing GmbH (GRW) [Member]
Business Acquisition [Line Items]
2015 acquisitions purchase price | €	€ 134.1
Number of facilities | Facility	2
Timken Alcor Aerospace Technologies, Inc. (TAAT) [Member]
Business Acquisition [Line Items]
2015 acquisitions purchase price		$ 44,500
G.C. Fabrication, Inc. (GCF) [Member]
Business Acquisition [Line Items]
2015 acquisitions purchase price			$ 9,500
2014 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date					73,100
Finite-lived intangible assets acquired					$ 16,900
Number of locations | location					21
Number of states in which entity operates | states					7
Orlando Facility [Member]
Business Acquisition [Line Items]
Milestone attainment payments				25,000
Acquisition contingency payments recorded as additional Goodwill				5,400	$ 1,500	$ 3,500
Additional goodwill, total to date				23,400
Remaining contingency payments				1,600
Customer Relationships [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired				$ 36,000
Customer Relationships [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired					$ 14,900
Customer Relationships [Member] | Minimum [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				6 years
Customer Relationships [Member] | Minimum [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life					11 years
Customer Relationships [Member] | Maximum [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				26 years
Customer Relationships [Member] | Maximum [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life					18 years
Developed Technologies [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired				$ 19,100
Developed Technologies [Member] | Minimum [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				10 years
Developed Technologies [Member] | Minimum [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				10 years
Developed Technologies [Member] | Maximum [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				20 years
Developed Technologies [Member] | Maximum [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				20 years
Noncompete Agreements [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired				$ 600
Noncompete Agreements [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired					$ 1,100
Noncompete Agreements [Member] | Minimum [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				1 year
Noncompete Agreements [Member] | Minimum [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				1 year
Noncompete Agreements [Member] | Minimum [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life					1 year 6 months
Noncompete Agreements [Member] | Maximum [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				9 years
Noncompete Agreements [Member] | Maximum [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life					3 years
Trade Names [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired				$ 4,800
Trade Names [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired					$ 900
Trade Names [Member] | Minimum [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				3 years
Trade Names [Member] | Minimum [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life					8 years
Trade Names [Member] | Maximum [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				15 years
Order or Production Backlog [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired				$ 800
Order or Production Backlog [Member] | Minimum [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life				2 years
Acquisition-related Costs [Member]
Business Acquisition [Line Items]
Pro forma information, earnings adjustments				$ 4,200
Acquisition Related Expenses [Member]
Business Acquisition [Line Items]
Pro forma information, earnings adjustments				$ 3,000