Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Current assets:
Cash and cash equivalents	$ 10,942	$ 35,224
Accounts receivable, net	346,833	317,056
Unbilled revenue	102,348	99,876
Inventories	25,239	23,830
Other current assets	38,177	55,179
Total current assets	523,539	531,165
Property and equipment, net	278,252	256,806
Intangible assets, net	263,495	290,455
Goodwill	1,806,542	1,766,761
Other assets	44,058	46,711
Total assets	2,915,886	2,891,898
Current liabilities:
Accounts payable	97,542	93,603
Current portion of long-term debt	10,370	12,963
Deferred revenue	62,675	72,476
Current portion of self-insurance reserves	40,283	34,537
Accrued expenses and other current liabilities	133,988	117,891
Total current liabilities	344,858	331,470
Long-term debt, net	1,145,833	1,141,279
Deferred tax liabilities	56,415	67,219
Self-insurance reserves	85,895	93,400
Other liabilities	28,056	31,203
Total liabilities	1,661,057	1,664,571
Stockholders’ equity:
Preferred stock, $0.01 par value; 50,000 shares authorized; no shares issued or outstanding as of June 30, 2019 and September 30, 2018
Common stock, $0.01 par value; 500,000 shares authorized; 104,842 and 104,470 shares issued and outstanding as of June 30, 2019 and September 30, 2018, respectively	1,049	1,045
Additional paid-in-capital	1,438,167	1,426,344
Accumulated deficit	(171,452)	(189,636)
Accumulated other comprehensive loss	(12,935)	(10,426)
Total stockholders’ equity	1,254,829	1,227,327
Total liabilities and stockholders’ equity	$ 2,915,886	$ 2,891,898