Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

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):

	2013			2012
Gross domestic accounts receivables	$	107,627		$	96,964
Gross domestic securitized accounts receivable		349,000			298,000
Gross foreign receivables		488,140			447,940
Total gross receivables		944,767			842,904
Less allowance for doubtful accounts		(22,416	)		(19,463	)
Net accounts and securitized accounts receivable	$	922,351		$	823,441

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):

	2013			2012			2011
Allowance for doubtful accounts beginning of year	$	19,463		$	15,315		$	14,256
Add:
Provision for bad debts		18,866			21,896			19,226
Less:
Write-offs		(15,913	)		(17,748	)		(18,167	)
Allowance for doubtful accounts end of year	$	22,416		$	19,463		$	15,315