Segment and Geographic Information (Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net sales	[1]	$ 1,805,909	$ 1,808,376	$ 1,775,125
Long-lived assets		679,980	668,360
Deferred income taxes		27,603	59,373
North America
Segment Reporting Information [Line Items]
Net sales		1,505,768	1,514,595	1,518,416
United States
Segment Reporting Information [Line Items]
Long-lived assets		456,023	465,906
Mexico
Segment Reporting Information [Line Items]
Long-lived assets		1,241	1,650
Europe
Segment Reporting Information [Line Items]
Net sales		169,353	168,456	112,057
Germany
Segment Reporting Information [Line Items]
Long-lived assets		169,782	151,336
United Kingdom
Segment Reporting Information [Line Items]
Long-lived assets		47,486	44,702
Czech Republic
Segment Reporting Information [Line Items]
Long-lived assets		5,448	4,766
Middle East
Segment Reporting Information [Line Items]
Net sales		81,343	61,409	65,740
Asia
Segment Reporting Information [Line Items]
Net sales		35,521	46,805	33,020
Oceania
Segment Reporting Information [Line Items]
Net sales		10,868	13,385	37,959
Other
Segment Reporting Information [Line Items]
Net sales		3,056	3,726	7,933
Distribution | Bearings and Power Transmission
Segment Reporting Information [Line Items]
Net sales	[2]	536,143	548,736	594,511
Distribution | Automation, Control and Energy
Segment Reporting Information [Line Items]
Net sales		326,117	337,428	354,771
Distribution | Fluid Power
Segment Reporting Information [Line Items]
Net sales		218,705	220,158	228,257
Aerospace | Military and Defense, other than fuzes
Segment Reporting Information [Line Items]
Net sales		201,760	205,812	242,112
Aerospace | Missile and Bomb Fuzes
Segment Reporting Information [Line Items]
Net sales		184,640	164,187	120,755
Aerospace | Commercial Aerospace and Other
Segment Reporting Information [Line Items]
Net sales		$ 338,544	$ 332,055	$ 234,719

[1] Service revenue was not material for the years ended December 31, 2017, 2016 and 2015.

[2] Aerospace bearings are not included in this caption, as they are reported in either the "Military and Defense" or "Commercial Aerospace and Other" categories.