Income Taxes (NOL Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	$ 25.5	$ 33.5
Foreign
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards subject to expiration	20.0
The Netherlands
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	16.9	10.3
Portugal
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	1.8	4.2
China
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	1.3	2.9
U.S. Federal
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	53.8	75.6
Deferred tax assets, operating loss carryforwards subject to expiration	53.8
Deferred tax assets, tax deferred expense, compensation and benefits, share-based compensation cost	7.4
U.S. State and Local Jurisdictions
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	68.5	$ 99.1
Deferred tax assets, operating loss carryforwards subject to expiration	$ 68.5