Stock-based Compensation - 2013 Omnibus Incentive Plan - Narrative (Details) (Details) (2013 Omnibus Incentive Plan, USD $) In Millions, except Per Share data, unless otherwise specified		0 Months Ended
	Dec. 16, 2013	Jan. 16, 2014 Stock Options	Jan. 16, 2014 Time-based Restricted Stock Units (TB RSUs)	Jan. 16, 2014 Performance-based Restricted Stock Units (PB RSUs)	Jan. 16, 2014 Performance-based Restricted Stock Units (PB RSUs) Minimum	Jan. 16, 2014 Performance-based Restricted Stock Units (PB RSUs) Maximum	Dec. 16, 2013 Share Price Performance Options / Shares Share Price Performance Options / Shares, Vesting Tranche One	Dec. 16, 2013 Share Price Performance Options / Shares Share Price Performance Options / Shares, Vesting Tranche Two	Dec. 16, 2013 Share Price Performance Options / Shares Share Price Performance Options / Shares, Vesting Tranche Three	Dec. 16, 2013 Share Price Performance Options / Shares Share Price Performance Options / Shares, Vesting Tranche Four	Dec. 16, 2013 Service Vesting Stock Options / Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant	8
Vesting period		3 years	3 years	3 years							3 years
Vesting rights, percentage		33.30%	33.30%				33.33%	33.33%	16.67%	16.67%	33.30%
Vesting period, from date of grant		1 year	1 year								6 months
Performance-based grant award, measurement period				3 years
Performance-based grant award, percentage					0.00%	200.00%
Vesting stock price, per share							$ 40.00	$ 53.60	$ 60.00	$ 67.20
Vesting measurement period, trading days							20 days	20 days	20 days	20 days
Grant exercise price, as a percentage of fair value											100.00%