Stock-Based Incentive Plans (Tables)

3 Months Ended

Mar. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Movement in Outstanding Shares of Restricted Class A Common Stock and Weighted-Average Grant Date Fair Value Per Share

The following table details the movement in our outstanding shares of restricted class A common stock and the weighted-average grant date fair value per share:

	Restricted Class A Common Stock			Weighted-Average Grant Date Fair Value Per Share
Balance as of December 31, 2016		1,309,995		$	28.68
Granted		280,938			30.54
Vested		(111,699	)		27.77
Forfeited		(3,123	)		27.37
Balance as of March 31, 2017		1,476,111		$	29.11