CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Sep. 30, 2016
Current assets:
Cash and cash equivalents	$ 130,667	$ 75,926
Accounts receivable, net	140,265	167,786
Prepaid expenses and other current assets	51,033	23,926
Total current assets	321,965	267,638
Marketable securities available for sale	13,049	11,016
Other investments	11,697	10,920
Property and equipment, net	42,143	45,122
Goodwill	799,791	798,415
Intangible assets, net	23,582	33,619
Deferred income taxes	40,856	47,598
Other assets	5,271	6,348
Total assets	1,258,354	1,220,676
Current liabilities:
Accounts payable	16,673	22,952
Accrued compensation and employee benefits	62,616	71,216
Other accrued liabilities	30,708	27,780
Deferred revenue	65,028	47,129
Current maturities on debt	224,000	77,000
Total current liabilities	399,025	246,077
Long-term debt	387,767	493,624
Other liabilities	38,807	34,147
Total liabilities	825,599	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 30,720 and 30,935 shares outstanding at June 30, 2017 and September 30, 2016, respectively)	307	309
Paid-in-capital	1,175,118	1,185,076
Treasury stock, at cost (58,137 and 57,922 shares at June 30, 2017 and September 30, 2016, respectively)	(2,229,984)	(2,136,760)
Retained earnings	1,562,188	1,475,214
Accumulated other comprehensive loss	(74,874)	(77,011)
Total stockholders’ equity	432,755	446,828
Total liabilities and stockholders’ equity	$ 1,258,354	$ 1,220,676