Share-Based Compensation and Employee Ownership Plans (Tables)

3 Months Ended

Mar. 31, 2020

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, 2020 and 2019:

	Three Months Ended March 31, 2020			Three Months Ended March 31, 2019
	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	5,364,486	$	16.67	5,962,295	$	15.73
Granted	2,140,932	17.39		1,781,949	16.97
Vested	(640,084)	14.63		(768,468)	16.69
Canceled	(87,348)	14.80		(233,333)	14.12
Forfeited	(30,562)	15.86		(144,346)	13.84
Ending balance outstanding	6,747,424	$	17.12	6,598,097	$	16.05

Included in the restricted share and restricted stock unit activity are performance-linked restricted stock units of 1,033,333 which were awarded in March 2016 and April 2019. Of the awards granted, 145,986 have vested and 320,681 have been canceled, as they did not meet the performance criteria, through March 31, 2020. The remaining awards, included in the outstanding balance as of March 31, 2020, vest between December 2020 and December 2021 and will be earned only to the extent that the Company attains specified market conditions relating to its volume-weighted average share price and total shareholder return in relation to certain benchmark indices and performance goals relating to aggregate net income and average return on shareholder equity. The actual number of RSUs ultimately earned could vary from zero, if performance goals are not met, to as much as 200% of the targeted award. Each RSU is equal to the one share of the Company's Class A common stock. Compensation expense is recognized to the extent that it is probable that the Company will attain the performance goals.