Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Preferred stock, par value (USD per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	100,000,000us-gaap_PreferredStockSharesAuthorized	100,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares outstanding	0us-gaap_PreferredStockSharesOutstanding	0us-gaap_PreferredStockSharesOutstanding
Class A Common Stock [Member]
Common stock, par value (USD per share)	$ 0.001	$ 0.001
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares outstanding	81,981,119	39,665,473
Class B Common Stock [Member]
Common stock, par value (USD per share)	$ 0.001	$ 0.001
Common stock, shares authorized	1,000,000	1,000,000
Common stock, shares outstanding	39	40

Face amount or stated value per share of common stock.

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