Stock Based Compensation (Details) (USD $)	12 Months Ended				0 Months Ended	12 Months Ended					0 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2013 Long-Term Incentive Plan [Member] Common Class A [Member]	Jul. 23, 2013 Long-Term Incentive Plan [Member] Restricted Stock Units (RSUs) [Member]	Dec. 31, 2013 Long-Term Incentive Plan [Member] Restricted Stock Units (RSUs) [Member]	Dec. 31, 2013 General and Administrative Expense [Member]	Dec. 31, 2013 Vesting Period, End of Current Year [Member]	Dec. 31, 2013 Vesting Period, End of First Anniversary [Member]	Dec. 31, 2013 Vesting Period, End of Second Anniversary [Member]	Jul. 23, 2013 Board of Directors [Member] Long-Term Incentive Plan [Member] Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options			$ 4,300,000
Shares that may be issued (in shares)				1,834,300
Award vesting, percentage								33.33%	33.33%	33.33%
Expiration period				10 years
Shares granted in period (in shares)			430,333		430,333
Accrued vesting (in shares)			140,778			140,778
Grant date fair value						6,500,000
Share based compensation	$ 0	$ 0					$ 2,200,000
Vesting period											1 year