Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 29, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 268,256	$ 300,507
Short-term investments in marketable securities	32,887	61,688
Short-term restricted cash	13,512	15,698
Receivables, net of allowances for doubtful accounts of $2,936 and $2,990	235,081	227,354
Inventories	163,502	176,440
Deferred tax assets	8,824	8,225
Other current assets	31,010	35,503
Total current assets	753,072	825,415
Non-current investments in marketable securities	123,006	85,865
Long-term restricted cash	33,081	38,369
Property, plant and equipment, net of accumulated depreciation of $124,971 and $132,807	154,104	163,794
Intangible assets, net of accumulated amortization of $29,661 and $28,930	50,228	54,111
Goodwill	166,923	170,773
Deferred tax assets	8,334	6,605
Non-current inventories	49,019	50,731
Other assets, net	22,073	22,155
Total Assets	1,359,840	1,417,818
Current Liabilities:
Accounts payable	71,539	78,308
Accrued payroll liabilities	32,688	38,599
Accrued warranty reserves	13,147	13,005
Short-term deferred revenue	99,127	96,924
Income taxes payable	5,688	5,299
Accrued restructuring, reorganization, relocation and severance	3,584	9,161
Other current liabilities	55,859	56,146
Total current liabilities	281,632	297,442
Long-term deferred revenue	34,054	34,021
Deferred tax liabilities	7,425	9,576
Other liabilities	37,078	35,454
Commitments and contingencies
Shareholders’ Equity:
Preferred stock - 500 shares authorized; none issued and outstanding	0	0
Common stock - 70,000 shares authorized; 41,715 and 41,797 shares issued and outstanding, no par value	603,585	607,250
Retained earnings	479,086	461,586
Accumulated other comprehensive loss	(83,020)	(27,511)
Total Shareholders’ Equity	999,651	1,041,325
Total Liabilities and Shareholders’ Equity	$ 1,359,840	$ 1,417,818