Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Company's Accounts Receivable and Securitized Accounts Receivable

The Company’s accounts receivable and securitized accounts receivable include the following at December 31 (in thousands):

	2012			2011
Gross domestic retained receivables	$	96,964		$	84,087
Securitized gross accounts receivable		298,000			280,000
Gross foreign receivables		447,940			413,019
Total gross receivables		842,904			777,106
Less allowance for doubtful accounts		(19,463	)		(15,315	)
Net accounts receivable	$	823,441		$	761,791

Allowance for Doubtful Accounts Related to Accounts Receivable

A rollforward of the Company’s allowance for doubtful accounts related to accounts receivable for the years ended December 31 is as follows (in thousands):

	2012			2011			2010
Allowance for doubtful accounts beginning of year	$	15,315		$	14,256		$	14,764
Add:
Provision for bad debts		21,896			19,226			18,883
Less:
Write-offs		(17,748	)		(18,167	)		(19,391	)
Allowance for doubtful accounts end of year	$	19,463		$	15,315		$	14,256