Share-based Compensation and Non-Qualified Deferred Compensation Plan (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement, Noncash Expense [Abstract]

Summary of Share Incentive Plans

A summary of activity under our share incentive plans for the nine months ended September 30, 2020 is shown below:

	Nonvested Share Awards Outstanding	Weighted Average Exercise /  Grant Price
Nonvested share awards outstanding at December 31, 2019	264,654	$	90.44
Granted	180,332	113.56
Vested	(196,446)	95.12
Forfeited	(9,079)	103.51
Total nonvested share awards outstanding at September 30, 2020	239,461	$	103.52