CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Current assets:
Cash and cash equivalents	$ 106,426	$ 90,023
Accounts receivable, net	297,427	266,742
Prepaid expenses and other current assets	51,853	39,624
Total current assets	455,706	396,389
Marketable securities	20,222	18,059
Other investments	1,643	1,697
Property and equipment, net	53,027	48,837
Goodwill	803,542	800,890
Intangible assets, net	14,139	14,536
Deferred income taxes	6,006	13,805
Other assets	79,163	36,254
Total assets	1,433,448	1,330,467
Current liabilities:
Accounts payable	23,118	20,251
Accrued compensation and employee benefits	106,240	84,292
Other accrued liabilities	32,454	31,025
Deferred revenue	111,016	103,335
Current maturities on debt	218,000	235,000
Total current liabilities	490,828	473,903
Long-term debt	606,790	528,944
Other liabilities	46,063	40,183
Total liabilities	1,143,681	1,043,030
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 28,944 and 29,015 shares outstanding at September 30, 2019 and September 30, 2018, respectively)	289	290
Paid-in-capital	1,225,365	1,211,051
Treasury stock, at cost (59,913 and 59,842 shares at September 30, 2019 and September 30, 2018, respectively)	(2,802,450)	(2,612,007)
Retained earnings	1,956,648	1,764,524
Accumulated other comprehensive loss	(90,085)	(76,421)
Total stockholders’ equity	289,767	287,437
Total liabilities and stockholders’ equity	$ 1,433,448	$ 1,330,467