Income Taxes (NOL Narrative) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	$ 33.5	$ 32.8
Foreign
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards subject to expiration	17.4
The Netherlands
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	10.3	17.9
Portugal
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	4.2	9.1
China
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	2.9	2.3
U.S. Federal
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	75.6	66.0
Deferred tax assets, operating loss carryforwards subject to expiration	75.6
Deferred tax assets, tax deferred expense, compensation and benefits, share-based compensation cost	10.8
U.S. State and Local Jurisdictions
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	99.1	96.0
Deferred tax assets, operating loss carryforwards subject to expiration	$ 99.1