CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 1,232,817	$ 1,100,416
Accounts receivable, less allowance of $4,790 and $5,709 as of March 31, 2019 and December 31, 2018, respectively	92,841	89,192
Prepaid expenses and other current assets	20,713	23,690
Total current assets	1,346,371	1,213,298
Long-term investments	10,070	10,070
Deferred income taxes, net	6,451	7,469
Property and equipment, net	85,978	83,303
Lease right-of-use assets	112,042	0
Goodwill	1,612,065	1,611,535
Intangible assets, net	275,750	288,911
Deferred commission costs, net	77,375	76,031
Deposits and other assets	7,274	7,432
Income tax receivable	14,908	14,908
Total assets	3,548,284	3,312,957
Current liabilities:
Accounts payable	7,919	6,327
Accrued wages and commissions	49,264	45,588
Accrued expenses	36,291	29,821
Deferred gain on the sale of building	0	2,523
Income taxes payable	22,536	14,288
Deferred rent	0	4,153
Lease liabilities	26,062	0
Deferred revenue	56,155	51,459
Total current liabilities	198,227	154,159
Deferred gain on the sale of building	0	13,669
Deferred rent	0	31,944
Deferred income taxes, net	76,682	69,857
Income taxes payable	17,443	17,386
Lease and other long-term liabilities	127,318	4,000
Total liabilities	419,670	291,015
Total stockholders’ equity	3,128,614	3,021,942
Total liabilities and stockholders’ equity	$ 3,548,284	$ 3,312,957