Restructuring, integration and other charges (Details) (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Dec. 31, 2011	Jan. 01, 2011
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring, integration and other charges	$ 34,505,000	$ 29,112,000	$ 34,505,000	$ 57,179,000
Fiscal 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	28,938,000
Integration costs	3,449,000
Acquisition costs	3,066,000
Reversal of excess prior year restructuring reserves	(948,000)
Pre-tax restructuring, integration and other charges	34,505,000
After tax restructuring, integration and other charges	23,563,000
Restructuring, integration and other charges per share on a diluted basis	$ 0.16
Fiscal Year 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	28,938,000
Activity related to the restructuring reserves
Cash payments	(7,862,000)
Non-cash write downs	(1,719,000)
Other, principally foreign currency translation	(196,000)
Restructuring Reserve, Ending Balance	19,161,000		19,161,000
Fiscal Year 2012 [Member] | Severance Reserves [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	19,792,000
Activity related to the restructuring reserves
Cash payments	(7,327,000)
Non-cash write downs	0
Other, principally foreign currency translation	(191,000)
Restructuring Reserve, Ending Balance	12,274,000		12,274,000
Fiscal Year 2012 [Member] | Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	7,406,000
Activity related to the restructuring reserves
Cash payments	(17,000)
Non-cash write downs	(1,719,000)
Other, principally foreign currency translation	7,000
Restructuring Reserve, Ending Balance	5,677,000		5,677,000
Fiscal Year 2012 [Member] | Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,740,000
Activity related to the restructuring reserves
Cash payments	(518,000)
Non-cash write downs	0
Other, principally foreign currency translation	(12,000)
Restructuring Reserve, Ending Balance	1,210,000		1,210,000
Fiscal Year 2011 [Member]
Activity related to the restructuring reserves
Restructuring Reserve, Beginning Balance			19,135,000
Cash payments			(7,861,000)
Restructuring Reserve, Accrual Adjustment			(572,000)
Other, principally foreign currency translation			(962,000)
Restructuring Reserve, Ending Balance	9,740,000		9,740,000
Fiscal Year 2011 [Member] | Severance Reserves [Member]
Activity related to the restructuring reserves
Restructuring Reserve, Beginning Balance			9,803,000
Cash payments			(5,874,000)
Restructuring Reserve, Accrual Adjustment			(211,000)
Other, principally foreign currency translation			(594,000)
Restructuring Reserve, Ending Balance	3,124,000		3,124,000
Fiscal Year 2011 [Member] | Facility Exit Costs [Member]
Activity related to the restructuring reserves
Restructuring Reserve, Beginning Balance			8,294,000
Cash payments			(1,693,000)
Restructuring Reserve, Accrual Adjustment			(229,000)
Other, principally foreign currency translation			(335,000)
Restructuring Reserve, Ending Balance	6,037,000		6,037,000
Fiscal Year 2011 [Member] | Other [Member]
Activity related to the restructuring reserves
Restructuring Reserve, Beginning Balance			1,038,000
Cash payments			(294,000)
Restructuring Reserve, Accrual Adjustment			(132,000)
Other, principally foreign currency translation			(33,000)
Restructuring Reserve, Ending Balance	579,000		579,000
Fiscal 2010 And Prior [Member]
Activity related to the restructuring reserves
Restructuring Reserve, Beginning Balance			8,914,000
Cash payments			(2,863,000)
Restructuring Reserve, Accrual Adjustment			(420,000)
Other, principally foreign currency translation			(286,000)
Restructuring Reserve, Ending Balance	5,345,000		5,345,000
Fiscal 2010 And Prior [Member] | Severance Reserves [Member]
Activity related to the restructuring reserves
Restructuring Reserve, Beginning Balance			316,000
Cash payments			(27,000)
Restructuring Reserve, Accrual Adjustment			(36,000)
Other, principally foreign currency translation			(27,000)
Restructuring Reserve, Ending Balance	226,000		226,000
Fiscal 2010 And Prior [Member] | Facility Exit Costs [Member]
Activity related to the restructuring reserves
Restructuring Reserve, Beginning Balance			6,632,000
Cash payments			(2,774,000)
Restructuring Reserve, Accrual Adjustment			(384,000)
Other, principally foreign currency translation			(83,000)
Restructuring Reserve, Ending Balance	3,391,000		3,391,000
Fiscal 2010 And Prior [Member] | Other [Member]
Activity related to the restructuring reserves
Restructuring Reserve, Beginning Balance			1,966,000
Cash payments			(62,000)
Restructuring Reserve, Accrual Adjustment			0
Other, principally foreign currency translation			(176,000)
Restructuring Reserve, Ending Balance	$ 1,728,000		$ 1,728,000