Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 35,224	$ 12,779
Accounts receivable, net	317,056	330,173
Unbilled revenue	99,876	88,907
Inventories	23,830	24,954
Other current assets	55,179	45,708
Total current assets	531,165	502,521
Property and equipment, net	256,806	245,534
Intangible assets, net	290,455	371,271
Goodwill	1,766,761	1,703,773
Other assets	46,711	35,521
Total assets	2,891,898	2,858,620
Current liabilities:
Accounts payable	93,603	76,133
Current portion of long-term debt	12,963	14,600
Deferred revenue	72,476	58,221
Current portion of self-insurance reserves	34,537	56,079
Accrued expenses and other current liabilities	117,891	137,116
Total current liabilities	331,470	342,149
Long-term debt, net	1,141,279	1,574,882
Deferred tax liabilities	67,219	125,139
Self-insurance reserves	93,400	66,519
Other liabilities	31,203	53,670
Total liabilities	1,664,571	2,162,359
Stockholders’ equity:
Preferred stock, $0.01 par value; 50,000 shares authorized; no shares issued or outstanding as of September 30, 2018 and September 30, 2017
Common stock, $0.01 par value; 500,000 shares authorized; 104,470 and 77,083 shares issued and outstanding as of September 30, 2018 and September 30, 2017, respectively	1,045	771
Additional paid-in-capital	1,426,344	894,089
Accumulated deficit	(189,636)	(178,015)
Accumulated other comprehensive loss	(10,426)	(20,584)
Total stockholders’ equity	1,227,327	696,261
Total liabilities and stockholders’ equity	$ 2,891,898	$ 2,858,620