Retirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Retirement Benefit Plans

Defined Benefit Pension Plans

	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
Service cost	$	26		$	26		$	53		$	53
Interest cost		169			155			334			313
Expected return on plan assets		(149	)		(119	)		(295	)		(244	)
Recognized net actuarial loss		—			36			—			74
Net period benefit cost	$	46		$	98		$	92		$	196