Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net earnings	$ 290,847	$ 269,493	$ 232,148
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	15,641	(18,731)	31,647
Unrealized gains (losses) on cash flow hedging arrangements:
Unrealized gains (losses)	(1,748)	(4,028)	(6,766)
Effective portion of (gains) losses included in net earnings	2,029	1,911	356
Defined benefit pension and post-retirement plans:
Net actuarial gains (losses)	(46,792)	(79,947)	(5,424)
Plan amendments and prior service cost	18,017	(274)	(405)
Amortization of actuarial (gains) losses and plan amendments and prior service cost	4,261	2,326	2,972
Defined Benefit Plans, Impact of FX on Current Year Change in OCI, net of tax	(1,931)	3,604	2,030
Total other comprehensive income (loss), net of tax	(10,523)	(95,139)	24,410
Total other comprehensive income (loss), net of tax	$ 280,324	$ 174,354	$ 256,558