Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 16,429	$ 12,779
Restricted cash	150	213
Accounts receivable, net	343,565	330,173
Unbilled revenue	102,305	88,907
Inventories	21,031	24,954
Other current assets	55,868	45,495
Total current assets	539,348	502,521
Property and equipment, net	260,536	245,534
Intangible assets, net	305,287	371,271
Goodwill	1,772,222	1,703,773
Other assets	41,839	35,521
Total assets	2,919,232	2,858,620
Current liabilities:
Accounts payable	84,001	76,133
Current portion of long-term debt	14,600	14,600
Deferred revenue	76,665	58,221
Current portion of self-insurance reserves	38,019	56,079
Accrued expenses and other current liabilities	154,568	137,116
Total current liabilities	367,853	342,149
Long-term debt, net	1,643,142	1,574,882
Deferred tax liabilities	72,513	125,139
Self-insurance reserves	80,791	66,519
Other liabilities	33,564	53,670
Total liabilities	2,197,863	2,162,359
Stockholders’ equity:
Common stock, $0.01 par value; 185,000 shares authorized; 77,895 and 77,083 shares issued and outstanding as of June 30, 2018 and September 30, 2017, respectively	769	771
Additional paid-in-capital	912,027	894,089
Accumulated deficit	(178,688)	(178,015)
Accumulated other comprehensive loss	(12,739)	(20,584)
Total stockholders’ equity	721,369	696,261
Total liabilities and stockholders’ equity	$ 2,919,232	$ 2,858,620