Consolidated Balance Sheets (Parenthetical) - shares shares in Thousands	Dec. 31, 2015	Dec. 31, 2014
Preferred Stock, Shares Authorized	300	300
Preferred Stock, Shares Outstanding	0	0
Treasury Stock, Shares	3,194	3,187
Common Stock
Common Stock, Shares Authorized	100,000	100,000
Common Stock, Shares, Issued	35,024	34,219
Class B Common Shares
Common Stock, Shares Authorized	12,000	12,000
Common Stock, Shares, Issued	734	1,085