DEBT (Tables)

12 Months Ended

Dec. 31, 2011

DEBT

Schedule of long-term obligations

	2011			2010
Notes payable 2.1% – 16.5%, due in monthly and annual installments through 2015	$	5,654		$	7,916
Senior unsecured notes 6.6%, due in installments through 2011		—			21,555
Senior unsecured notes 5.1%, due in 2011		—			25,000
Senior unsecured notes 5.4%, due in 2013		25,000			25,000
Senior unsecured notes 2.3%, due in 2015		16,000			16,000
Senior unsecured notes 6.0%, due in 2016		50,000			50,000
Senior unsecured notes 6.0%, due in 2018		75,000			75,000
Senior unsecured notes 3.8%, due in 2020		84,000			84,000
Capital lease obligations		3,372			4,428
		259,026			308,899
Current maturities of long-term obligations		(4,116	)		(50,126	)
Total long-term obligations	$	254,910		$	258,773