Note 4 - Goodwill and Intangible Assets (Details) - Changes in the Carrying Amount of Goodwill by Segment (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Goodwill [Line Items]
Goodwill Balance	$ 971,678	$ 989,808
Foreign currency translation and other	(18,130)
Goodwill Balance	971,678	989,808
Performance Materials [Member]
Goodwill [Line Items]
Goodwill Balance	747,141	760,371
Foreign currency translation and other	(13,230)
Goodwill Balance	747,141	760,371
Graphic Solutions [Member]
Goodwill [Line Items]
Goodwill Balance	224,537	229,437
Foreign currency translation and other	(4,900)
Goodwill Balance	$ 224,537	$ 229,437