Stock-Based Compensation And Stock Repurchases (Tables)

9 Months Ended

Sep. 30, 2018

Stock-Based Compensation And Stock Repurchases [Abstract]

Schedule Of Fair Value Of Options, Weighted Average Assumptions

	Nine Months Ended September 30,
	2018		2017
Stock option exercise price	$	16.40	$	15.94
Risk-free interest rate		2.56%		1.66%
Expected dividend yield		—		—
Expected option life in years		3.75		3.75
Expected volatility		24.99%		24.95%
Weighted average fair value	$	3.80	$	3.45

Schedule Of Stock Options Outstanding And Exercisable

	Outstanding Stock Options - Class A Shares
	Number of Options	Weighted Average Exercise Price		Weighted Average Remaining Years of Contractual Life	Aggregate Intrinsic Value
	Class A	Class A		Class A	Class A
Balance - December 31, 2016	535,077	$	9.84	2.61	$	3,615,191
Granted	169,762		15.94	—		—
Exercised	(177,750)		7.85	—		702,840
Forfeited	(2,500)		6.23	—		—
Balance - December 31, 2017	524,589	$	12.50	3.15	$	3,054,325
Granted	126,840		16.40	—		—
Exercised	(60,000)		3.38	—		239,250
Forfeited	—		—	—		—
Balance - September 30, 2018	591,429	$	13.68	3.13	$	2,093,843

Schedule Of Restricted Stock Units Issued And Vested

	Outstanding Restricted Stock Units
	RSU Grants (in units)			Vested,	Unvested,
Grant Date	Directors	Management	Total Grants	September 30, 2018	September 30, 2018
March 10, 2016	35,147	27,381	62,528	48,837	13,691
April 11, 2016	—	5,625	5,625	1,406	4,219
March 23, 2017	30,681	32,463	63,144	46,912	16,232
August 29, 2017	—	7,394	7,394	—	7,394
January 2, 2018	29,393	—	29,393	—	29,393
April 12, 2018	—	29,596	29,596	—	29,596
April 13, 2018	—	14,669	14,669	—	14,669
July 6, 2018	—	932	932	—	932
Total	95,221	118,060	213,281	97,155	116,126