CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Current assets:
Cash and cash equivalents	$ 115,848	$ 75,926
Accounts receivable, net	141,394	167,786
Prepaid expenses and other current assets	51,987	23,926
Total current assets	309,229	267,638
Marketable securities available for sale	12,224	11,016
Other investments	10,920	10,920
Property and equipment, net	42,728	45,122
Goodwill	792,420	798,415
Intangible assets, net	26,311	33,619
Deferred income taxes	47,761	47,598
Other assets	5,475	6,348
Total assets	1,247,068	1,220,676
Current liabilities:
Accounts payable	18,692	22,952
Accrued compensation and employee benefits	48,154	71,216
Other accrued liabilities	25,527	27,780
Deferred revenue	64,906	47,129
Current maturities on debt	107,000	77,000
Total current liabilities	264,279	246,077
Long-term debt	518,720	493,624
Other liabilities	36,968	34,147
Total liabilities	819,967	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 30,962 and 30,935 shares outstanding at March 31, 2017 and September 30, 2016, respectively)	310	309
Paid-in-capital	1,162,936	1,185,076
Treasury stock, at cost (57,895 and 57,922 shares at March 31, 2017 and September 30, 2016, respectively)	(2,187,837)	(2,136,760)
Retained earnings	1,536,961	1,475,214
Accumulated other comprehensive loss	(85,269)	(77,011)
Total stockholders’ equity	427,101	446,828
Total liabilities and stockholders’ equity	$ 1,247,068	$ 1,220,676