Stock-Based Incentive Compensation Plans (Details)	3 Months Ended
	Mar. 31, 2017 shares
Stock options [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted	392,367
Performance Shares [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted	149,225
Restricted Stock Units [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted	398,500
Non-employee Stock Appreciation Rights [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted	26,494
Non-employee Agent Stock Options [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted	102,638
Non-employee Director Deferred Stock Units [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted	7,475