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Incentive Stock Plans Non-Qualified Employee Stock Options Narrative (Details) (Stock Options [Member], USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Stock Options [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Maximum term 10 years
Award vesting period 3 years
Valuation method Black-Scholes option-pricing model
Expense recognition method 3 years
Unrecognized compensation cost $ 2.0
Weighted average period for recognition (years) 1 year