Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 28, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 272,441	$ 384,170
Short-term investments in marketable securities	92,589	108,191
Short-term restricted cash	11,988	18,798
Receivables, net of allowances for doubtful accounts of $2,854 and $2,969	219,203	194,418
Inventories	190,394	181,725
Deferred tax assets	9,890	15,114
Other current assets	42,648	28,324
Total current assets	839,153	930,740
Non-current investments in marketable securities	77,005	47,278
Long-term restricted cash	38,953	32,718
Property, plant and equipment, net of accumulated depreciation of $137,808 and $125,405	166,520	157,829
Intangible assets, net of accumulated amortization of $27,231 and $19,385	59,371	47,197
Goodwill	177,820	136,152
Deferred tax assets	9,156	1,751
Non-current inventories	53,845	62,104
Other assets, net	17,693	10,315
Total Assets	1,439,516	1,426,084
Current Liabilities:
Accounts payable	79,584	73,247
Accrued payroll liabilities	36,842	45,146
Accrued warranty reserves	12,128	12,705
Short-term deferred revenue	92,386	91,563
Income taxes payable	12,435	4,579
Accrued restructuring, reorganization, relocation and severance	6,462	50
Other current liabilities	55,907	46,324
Total current liabilities	295,744	273,614
Long-term deferred revenue	33,255	30,744
Deferred tax liabilities	10,405	8,931
Other liabilities	33,883	35,227
Commitments and contingencies
Shareholders’ Equity:
Preferred stock - 500 shares authorized; none issued and outstanding	0	0
Common stock - 70,000 shares authorized; 41,844 and 42,136 shares issued and outstanding, no par value	623,092	637,482
Retained earnings	438,564	392,958
Accumulated other comprehensive income	4,573	47,128
Total Shareholders’ Equity	1,066,229	1,077,568
Total Liabilities and Shareholders’ Equity	$ 1,439,516	$ 1,426,084