Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018
Current assets:
Cash and cash equivalents	$ 645	$ 129,927	$ 16,000
Accounts receivable, less allowance of $23,058, $17,584 and $16,493 as of March 31, 2019, September 30, 2018 and March 31, 2018, respectively	869,760	1,090,533	832,823
Inventories, net	1,031,183	936,047	1,005,577
Prepaid expenses and other current assets	332,100	244,360	240,315
Total current assets	2,233,688	2,400,867	2,094,715
Property and equipment, net	271,022	280,407	294,222
Goodwill	2,490,326	2,491,779	2,381,620
Intangibles, net	1,229,949	1,334,366	1,410,302
Other assets, net	1,243	1,243	1,511
Total assets	6,226,228	6,508,662	6,182,370
Current liabilities:
Accounts payable	510,434	880,872	593,559
Accrued expenses	453,889	611,539	348,050
Current portions of long-term debt/obligations	19,988	19,661	19,597
Total current liabilities	984,311	1,512,072	961,206
Borrowings under revolving lines of credit, net	416,614	92,442	424,528
Long-term debt, net	2,494,673	2,494,725	2,493,889
Deferred income taxes, net	110,064	106,994	91,101
Long-term obligations under equipment financing and other, net	8,527	13,639	18,313
Other long-term liabilities	5,702	5,290	10,617
Total liabilities	4,019,891	4,225,162	3,999,654
Commitments and contingencies (Note 9)
Convertible preferred stock; $0.01 par value; aggregate liquidation preference $400,000; 400,000 shares authorized, issued and outstanding as of March 31, 2019, September 30, 2018 and March 31, 2018	399,195	399,195	399,195
Stockholders' equity:
Common stock (voting); $0.01 par value; 100,000,000 shares authorized; 68,475,871, 68,135,790 and 68,043,284 shares issued and outstanding as of March 31, 2019, September 30, 2018 and March 31, 2018, respectively	684	681	680
Undesignated preferred stock; 5,000,000 shares authorized, none issued or outstanding	0	0	0
Additional paid-in capital	1,073,243	1,067,040	1,056,248
Retained earnings	752,855	833,834	743,127
Accumulated other comprehensive income (loss)	(19,640)	(17,250)	(16,534)
Total stockholders' equity	1,807,142	1,884,305	1,783,521
Total liabilities and stockholders' equity	$ 6,226,228	$ 6,508,662	$ 6,182,370