Debt (Tables)

3 Months Ended

Mar. 31, 2013

Debt Disclosure [Abstract]

Outstanding Debt Balances

Outstanding debt balances were as follows:

	March 31, 2013		December 31, 2012
Notes payable:
Uncommitted lines of credit	$	54,082	$	33,916
Other	565		296
	$	54,647	$	34,212
Long-term debt:
Credit facility	$	382,000	$	300,000
Senior notes	225,000		300,000
Industrial development revenue bonds	11,900		11,900
Other	5,146		5,634
	$	624,046	$	617,534