Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 95,108	$ 221,467
Short-term investments	170	6,788
Accounts receivable, net	139,737	110,455
Inventories	103,622	82,657
Current deferred tax assets, net	84,541	45,725
Other current assets	24,226	17,864
Total current assets	447,404	484,956
Deferred tax assets, net	141,064	194,597
Goodwill	143,510	1,152
Intangible assets, net	61,996	3,031
Property, plant and equipment, net	47,086	36,320
Other assets, net	28,230	29,209
Total assets	869,290	749,265
Current liabilities:
Accounts payable	92,607	72,120
Payroll and related expenses	32,540	20,155
Deferred revenue	47,234	36,227
Accrued expenses	35,118	24,949
Total current liabilities	207,499	153,451
Long-term debt	85,000
Pension and other postretirement benefits liabilities	124,058	95,922
Long-term deferred revenue	28,960	23,752
Other long-term liabilities	15,344	14,911
Commitments and contingencies
Shareholder's Equity:
Common stock (250,000 shares authorized, 62,956 and 62,594 shares issued and 59,717 and 60,191 outstanding)	636	625
Additional paid-in capital	697,597	694,291
Accumulated deficit	(210,327)	(179,570)
Accumulated other comprehensive loss	(79,477)	(54,117)
Total equity	408,429	461,229
Total liabilities and equity	$ 869,290	$ 749,265