Income Taxes (Schedule of Deferred Tax Assets and Deferred Tax Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jan. 02, 2016
Deferred tax assets:
Accrued expenses	$ 25,454	$ 27,555
Tax credits and separate return net operating losses	27,762	29,265
Share based compensation	81,133	69,555
Contract and service revenues and costs	59,217	0
Other	9,723	16,334
Total deferred tax assets	203,289	142,709
Deferred tax liabilities:
Software development costs	(275,888)	(216,435)
Depreciation and amortization	(133,424)	(133,242)
Prepaid expenses	(30,255)	(25,655)
Contract and service revenues and costs	0	(10,684)
Other	(3,050)	(3,589)
Total deferred tax liabilities	(442,617)	(389,605)
Net deferred tax liability	$ (239,328)	$ (246,896)