Share-Based Payments, Deferred Compensation and Employee Ownership Plans (Tables)

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity

Restricted shares and restricted stock units are referred to collectively as restricted stock. The following table summarizes the Company's restricted share and restricted stock unit activity for the three months ended March 31, 2021 and 2020:

	Three Months Ended March 31, 2021			Three Months Ended March 31, 2020
	Nonvested Restricted Class A Common Shares and Class A Common Restricted Stock Units	Weighted-Average Grant Date Fair Value		Nonvested Restricted Class A Common Shares and Class A Common Restricted Stock Units	Weighted-Average Grant Date Fair Value
Beginning balance outstanding	5,450,191	$	17.56	5,364,486	$	16.67
Granted	1,593,941	34.85		2,140,932	17.39
Vested	(291,062)	16.11		(640,084)	14.63
Canceled	—	—		(87,348)	14.80
Forfeited	(8,134)	20.22		(30,562)	15.86
Ending balance outstanding	6,744,936	$	21.71	6,747,424	$	17.12