CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Current assets:
Cash and cash equivalents	$ 105,618	$ 75,926
Accounts receivable, net	168,586	167,786
Prepaid expenses and other current assets	36,727	23,926
Total current assets	310,931	267,638
Marketable securities available for sale	13,791	11,016
Other investments	11,724	10,920
Property and equipment, net	40,703	45,122
Goodwill	804,414	798,415
Intangible assets, net	21,185	33,619
Deferred income taxes	47,204	47,598
Other assets	5,668	6,348
Total assets	1,255,620	1,220,676
Current liabilities:
Accounts payable	19,510	22,952
Accrued compensation and employee benefits	77,610	71,216
Other accrued liabilities	32,104	27,780
Deferred revenue	55,431	47,129
Current maturities on debt	142,000	77,000
Total current liabilities	326,655	246,077
Long-term debt	462,801	493,624
Other liabilities	39,627	34,147
Total liabilities	829,083	773,848
Commitments and contingencies
Stockholders’ equity:
Preferred stock ($0.01 par value; 1,000 shares authorized; none issued and outstanding)	0	0
Common stock ($0.01 par value; 200,000 shares authorized, 88,857 shares issued and 30,243 and 30,935 shares outstanding at September 30, 2017 and September 30, 2016, respectively)	302	309
Paid-in-capital	1,195,431	1,188,913
Treasury stock, at cost (58,614 and 57,922 shares at September 30, 2017 and September 30, 2016, respectively)	(2,301,097)	(2,136,760)
Retained earnings	1,598,395	1,471,377
Accumulated other comprehensive loss	(66,494)	(77,011)
Total stockholders’ equity	426,537	446,828
Total liabilities and stockholders’ equity	$ 1,255,620	$ 1,220,676