Nature of Operations (Schedule Of Sales Allocated To Geographic Area) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	$ 1,234.5	$ 1,231.3	$ 1,294.3
Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	837.3	805.1	798.3
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	263.1	289.9	353.4
Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	134.1	136.3	142.6
United States [Member] | Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	775.9	745.9	726.0
Canada [Member] | Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	61.4	59.2	72.3
United Kingdom [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	87.9	112.0	113.8
France [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	54.0	54.9	69.7
Netherlands [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	43.3	42.1	53.3
Russia [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	40.2	37.4	62.0
Other [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	37.7	43.5	54.6
Other [Member] | Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	19.9	21.1	19.8
China [Member] | Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	38.7	39.1	47.6
India [Member] | Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	40.0	43.7	39.6
Australia [Member] | Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	$ 35.5	$ 32.4	$ 35.6