Related Party Transactions - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended			3 Months Ended				12 Months Ended
	Dec. 31, 2011	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Board of Directors Chairman	Jun. 30, 2009 Board of Directors Chairman	Dec. 31, 2011 Board of Directors Chairman Airplane	Dec. 31, 2011 Board of Directors Chairman Vehicle	Dec. 31, 2009 Immediate Family Member of Management or Principal Owner
Related Party Transaction [Line Items]
Purchase of airplane	$ 2,800,000	$ 78,211,000	$ 87,636,000	$ 83,140,000
Related party transaction amount							2,800,000	21,000
Brokerage fees paid					80,000
Cost of Sponsoring Driver for NASCAR Nationwide Series									1,600,000
Expenses Paid For Promotional Event									$ 22,000
Number of Class A Common Stock converted						750,000
Number of Nonvoting Common Stock issued						624,503