Accounts Receivable (Tables)

3 Months Ended

Mar. 31, 2012

Accounts Receivable [Abstract]

Components Of Accounts Receivable

	As of
	March 31, 2012			December 31, 2011
Gross accounts receivable	$	158,548		$	156,790
Accounts receivable reserves		(1,434	)		(1,560	)
Accounts receivable, net	$	157,114		$	155,230