Consolidated Statements of Stockholders' Equity - shares	Total	Non-Voting Shares Conversion Inc (Dec)	Non-Voting Shares Conversion (Decrease)	Voting Common Stock	Class B Non-Voting	Preferred Stock	Common Stock Voting Common Stock	Common Stock Voting Common Stock Restricted Stock-Based Compensation	Common Stock Voting Common Stock Restricted Stock-Based Compensation Surrendered	Common Stock Class B Non-Voting	Common Stock Non-Voting Common Stock Equivalents
Preferred Stock, Shares Issued						513,250
Preferred Stock, Shares Outstanding						513,250
Common Stock, Shares, Outstanding				78,973,869
Common Stock, Shares, Issued, Acquisitions								(587,731)	(169,152)
Stock Purchased Under Dividend Reinvestment Plan							5,268
Preferred Stock, Shares Issued	513,250
Preferred Stock, Shares Outstanding	513,250					513,250
Common Stock, Shares, Outstanding	156,790,349						157,651,752			477,321
Common Stock, Shares, Issued, Acquisitions	(157,651,752)				(477,321)			(55,422)	(230,773)		(10,829,990)
Stock Purchased Under Dividend Reinvestment Plan							20,505
Stock Repurchased During Period, Shares	0
Conversion of Stock, Description		1,039,390	(1,039,390)
Preferred Stock, Shares Issued	513,250
Preferred Stock, Shares Outstanding	513,250					513,250
Common Stock, Shares, Outstanding	158,346,529				477,321		158,557,735			477,321
Common Stock, Shares, Issued, Acquisitions	(158,557,735)				(477,321)			54,555	(99,357)		(9,790,600)