Accounts and Notes Receivable and Allowance for Credit Losses (Tables)

3 Months Ended

Mar. 31, 2012

Contractual Amounts Due Under Leases

Year	Contractual Amounts Due Under Leases
Due within one year	$	112,125
Due within two years		87,656
Due within three years		78,307
Thereafter		899
Total		278,987
Less amounts representing interest		(6,156)
Present value		272,831
Current portion (included in accounts and notes receivable)		109,604
Long-term portion (included in other assets, net)	$	163,227

Allowance for Credit Losses

	March 31,		March 31,
	2012		2011
Balance, beginning of the period	$	24,247	$	44,661
Recoveries		(11,758)		(14,332)
Provisions		8,559		16,313
Balance, end of the period	$	21,048	$	46,642