Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2018	Sep. 30, 2018
Current assets:
Cash and cash equivalents	$ 17,713	$ 35,224
Accounts receivable, net	298,139	317,056
Unbilled revenue	93,222	99,876
Inventories	25,161	23,830
Other current assets	58,218	55,179
Total current assets	492,453	531,165
Property and equipment, net	255,430	256,806
Intangible assets, net	275,285	290,455
Goodwill	1,769,212	1,766,761
Other assets	44,518	46,711
Total assets	2,836,898	2,891,898
Current liabilities:
Accounts payable	81,143	93,603
Current portion of long-term debt	10,370	12,963
Deferred revenue	77,363	72,476
Current portion of self-insurance reserves	43,948	34,537
Accrued expenses and other current liabilities	85,404	117,891
Total current liabilities	298,228	331,470
Long-term debt, net	1,139,636	1,141,279
Deferred tax liabilities	62,631	67,219
Self-insurance reserves	82,444	93,400
Other liabilities	33,133	31,203
Total liabilities	1,616,072	1,664,571
Stockholders’ equity:
Preferred stock, $0.01 par value; 50,000 shares authorized; no shares issued or outstanding as of December 31, 2018 and September 30, 2018
Common stock, $0.01 par value; 500,000 shares authorized; 104,962 and 104,470 shares issued and outstanding as of December 31, 2018 and September 30, 2018, respectively	1,050	1,045
Additional paid-in-capital	1,432,247	1,426,344
Accumulated deficit	(199,555)	(189,636)
Accumulated other comprehensive loss	(12,916)	(10,426)
Total stockholders’ equity	1,220,826	1,227,327
Total liabilities and stockholders’ equity	$ 2,836,898	$ 2,891,898