Rental expense and commitments (Tables)

12 Months Ended

Dec. 31, 2011

Operating Leased Assets [Line Items]

Schedule of Rent Expense [Table Text Block]

Year		Minimum payments
		(In thousands)
2012	$	41,054
2013		38,790
2014		37,189
2015		35,179
2016		30,921
Later years		193,478
	$	376,611