Consolidated Balance Sheets (USD $) In Thousands	12 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
Current assets:
Cash and cash equivalents	$ 477,931	$ 319,944
Accounts receivable	258,294	195,247
Inventories	280,814	219,593
Other current assets	59,347	58,877
Total current assets	1,076,386	793,661
Property, plant and equipment	84,160	91,229
Goodwill	547,184	553,462
Other intangible assets	74,616	95,396
Other assets	79,210	65,930
Total assets	1,861,556	1,599,678
Current liabilities:
Accounts payable	298,160	257,955
Accrued liabilities	172,560	182,336
Total current liabilities	470,720	440,291
Other liabilities	185,835	159,672
Total liabilities	656,555	599,963
Commitments and contingencies
Shareholders' equity:
Shares, par value CHF 0.25 - 191,606 issued and authorized and 50,000 conditionally authorized at March 31, 2011 and 2010	33,370	33,370
Additional paid-in capital		14,880
Shares in treasury, at cost, 12,433 at March 31, 2011 and 16,435 at March 31, 2010	(264,019)	(382,512)
Retained earnings	1,514,168	1,406,618
Accumulated other comprehensive loss	(78,518)	(72,641)
Total shareholders' equity	1,205,001	999,715
Total liabilities and shareholders' equity	$ 1,861,556	$ 1,599,678