Accounts Receivable

12 Months Ended

Dec. 31, 2013

Accounts Receivable

Accounts Receivable

Note 5—Accounts Receivable

        The following is a summary of trade accounts receivable at December 31, (in millions):

	2013			2012
Gross accounts receivable	$	315.5		$	297.2
Allowance for doubtful accounts		(7.9	)		(7.9	)
Accounts receivable, net	$	307.6		$	289.3

        The allowance for doubtful accounts is management's estimate of credit losses in the accounts receivable. The allowance for doubtful accounts is based on a number of factors, including an evaluation of customer credit worthiness, the age of the outstanding receivable, economic trends and historical experience. The allowance for doubtful accounts is reviewed on a quarterly basis and changes in estimates are reflected in the period in which they become known. The Company records account balances against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. Provisions for doubtful accounts are recorded in selling, general and administrative expenses in the accompanying consolidated statements of income and comprehensive income.

        The following is a summary of the activity in the Company's allowance for doubtful accounts at December 31, (in millions):

	Balance at Beginning of Period		Additions Charged to Expense		Deductions Amounts Written Off			Balance at End of Period
2013	$	7.9	$	1.3	$	(1.3	)	$	7.9
2012		5.6		3.0		(0.7	)		7.9
2011		5.1		0.9		(0.4	)		5.6