Share-Based Awards (Narrative) (Details) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock reserved for future issuance under the plan	10.8
Stock Options [Member] | Prior to 2010 [Member] | 2009 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	4 years
Stock Options [Member] | Prior to 2010 [Member] | 2009 Plan [Member] | Vesting Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	1 year
Award Vesting Rights, Percentage	25.00%
Stock Options [Member] | 2010 and later [Member] | 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	3 years
Expiration Period	10 years
Stock Options [Member] | 2010 and later [Member] | 2010 Plan [Member] | Vesting Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	1 year
Award Vesting Rights, Percentage	33.00%
Stock Appreciation Rights (SARs) [Member] | Prior to 2010 [Member] | 2009 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	4 years
Stock Appreciation Rights (SARs) [Member] | Prior to 2010 [Member] | 2009 Plan [Member] | Vesting Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	1 year
Award Vesting Rights, Percentage	25.00%
Stock Appreciation Rights (SARs) [Member] | 2010 and later [Member] | 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	3 years
Expiration Period	10 years
Stock Appreciation Rights (SARs) [Member] | 2010 and later [Member] | 2010 Plan [Member] | Vesting Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	1 year
Award Vesting Rights, Percentage	33.00%
Restricted Stock [Member] | 2010 and later [Member] | 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	3 years
Restricted Stock [Member] | 2010 and later [Member] | 2010 Plan [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	2 years
Restricted Stock [Member] | 2010 and later [Member] | 2010 Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	5 years
Restricted Stock [Member] | 2010 and later [Member] | 2010 Plan [Member] | Vesting Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	1 year
Award Vesting Rights, Percentage	33.00%
Restricted Stock Units (RSUs) [Member] | 2010 and later [Member] | 2010 Plan [Member] | Vesting Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Vesting Rights, Percentage	33.00%