Premiums Receivable (Tables)

12 Months Ended

Dec. 31, 2012

Premiums Receivable [Abstract]

Components of premiums receivable

	December 31,
	2012			2011
	(In thousands)
Premiums receivable	$	148,374		$	126,796
Allowance for doubtful accounts		(6,424	)		(5,573	)
Premiums receivable, net	$	141,950		$	121,223

Summarizes the activity in the allowance for doubtful accounts

	December 31,
	2012			2011			2010
	(In thousands)
Balance, beginning of year	$	5,573		$	5,104		$	4,917
Provision for bad debts		2,230			1,209			915
Write-offs		(1,379	)		(740	)		(728	)
Balance, end of year	$	6,424		$	5,573		$	5,104