Benefit Obligations (Details Textual) (USD $)	12 Months Ended				12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011 International pension plans [Member]	Dec. 31, 2010 International pension plans [Member]	Dec. 31, 2011 Domestic pension plans [Member]	Dec. 31, 2011 Non-qualified supplemental pension plan [Member]	Dec. 31, 2011 LSI 401(k) defined contribution plan [Member]	Dec. 31, 2010 LSI 401(k) defined contribution plan [Member]	Dec. 31, 2009 LSI 401(k) defined contribution plan [Member]	Dec. 31, 2011 Pension Benefits [Member]	Dec. 31, 2010 Pension Benefits [Member]	Dec. 31, 2009 Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Obligations related to the Company's international pension plans			$ 22,200,000	$ 21,400,000						$ 1,463,079,000	$ 1,331,137,000	$ 1,274,415,000
Assets for certain of the Company's international pension plans			12,300,000	10,600,000						867,241,000	868,809,000	819,410,000
Company's contribution to pension plans					64,300,000	700,000				65,112,000	31,027,000
Accumulated benefit obligation			20,500,000	19,400,000						1,453,690,000	1,322,394,000
Minimum amount of cash held to meet near-term expenses as required by trust agreement						1,000,000
Non-qualified supplemental pension plan assets target allocation in fixed-income securities						70.00%
Non-qualified supplemental pension plan assets target allocation in equity securities						30.00%
Company contributions	94,400,000						18,700,000	20,500,000	3,800,000
Actual gain on plan assets										19,721,000	95,967,000
Benefit Obligations (Textual) [Abstract]
Interest per year on cash balance accounts		4.00%
Target asset allocation for plan assets in public equity securities		55.00%
Target asset allocation for plan assets in fixed-income securities		40.00%
Target asset allocation for plan assets in real estate securities		5.00%
Current target allocations for post-retirement benefit plan assets in equity securities		40.00%
Estimated prior service cost that will be amortized from accumulated other comprehensive loss into pension costs	38,000
Estimated transitional asset cost that will be amortized from accumulated other comprehensive loss into pension costs	19,000
Estimated net actuarial loss that will be amortized from accumulated other comprehensive loss into pension costs	13,900,000
Estimated net actuarial loss that will be amortized from accumulated other comprehensive loss into post-retirement costs	$ 1,900,000
Current target allocations for post-retirement benefit plan assets in fixed-income securities		60.00%
Gains smoothing period		5 years