Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 30, 2017
Current Assets:
Cash and cash equivalents	$ 544,585	$ 688,087
Short-term investments	5,446	4,455
Receivables, net	240,836	190,426
Inventories	30,535	33,209
Prepaid expenses and other	66,979	63,811
Total current assets	888,381	979,988
Property, plant and equipment, net of accumulated depreciation of $685,212 and $658,377, respectively	248,165	251,342
Goodwill	661,341	666,009
Acquired intangibles, net	238,385	278,835
Long-term receivables	4,395	12,239
Other assets	232,540	230,301
Total assets	2,273,207	2,418,714
Current Liabilities:
Revolving credit facility	0	85,000
Accounts payable and accrued liabilities	212,153	221,101
Current portion of deferred revenue	329,168	336,297
Total current liabilities	541,321	642,398
Long-Term Liabilities:
Long-term portion of deferred revenue	49,343	61,513
Long-term debt	345,113	644,369
Other long-term liabilities	80,013	81,232
Total long-term liabilities	474,469	787,114
Commitments and contingencies
Stockholders' Equity:
Common stock and capital in excess of par value	1,897,749	1,829,950
Treasury stock, at cost	(1,292,265)	(1,178,121)
Retained earnings	674,284	341,003
Accumulated other comprehensive loss	(22,351)	(3,630)
Total stockholders’ equity	1,257,417	989,202
Total liabilities and stockholders’ equity	$ 2,273,207	$ 2,418,714