SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2014

Valuation and Qualifying Accounts [Abstract]

SCHEDULE II. VALUTAION AND QUALIFYING ACCOUNTS

SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS

Allowance for Doubtful Accounts

The transactions in the allowance for doubtful accounts for the years ended December 31 were as follows (in thousands):

	2014			2013			2012
Balance, beginning of year	$	39,292		$	34,560		$	31,328
Provision	15,092			15,587			10,459
Write-offs	(13,333		)	(10,855		)	(7,227		)
Balance, end of year	$	41,051		$	39,292		$	34,560