CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Current assets
Cash and cash equivalents	$ 156,852	$ 197,708
Marketable securities	35	46,281
Accounts receivable, net	163,105	125,192
Inventories	104,786	96,986
Prepaid expenses and other current assets	40,441	31,741
Current assets held for sale	61,665	66,148
Total current assets	526,884	564,056
Property, plant and equipment, net	98,330	59,988
Long-term marketable securities	2,874	7,237
Long-term deferred tax assets	25,345	43,798
Goodwill	490,545	255,876
Intangible assets, net	262,195	99,956
Other assets	21,126	5,294
Non-current assets held for sale	65,561	59,052
Total assets	1,492,860	1,095,257
Current liabilities
Current portion of long term debt	6,326	2,000
Accounts payable	47,789	44,724
Deferred revenue	30,598	25,884
Accrued warranty and retrofit costs	7,190	6,340
Accrued compensation and benefits	28,629	29,322
Accrued restructuring costs	280	659
Accrued income taxes payable	7,784	6,746
Accrued expenses and other current liabilities	33,655	30,405
Current liabilities held for sale	12,741	18,537
Total current liabilities	174,992	164,617
Long-term debt	534,748	194,071
Long-term tax reserves	15,044	1,102
Long-term deferred tax liabilities	16,025	7,135
Long-term pension liabilities	4,865	4,255
Other long-term liabilities	8,953	5,547
Non-current liabilities held for sale	107	698
Total liabilities	754,734	377,425
Commitments and contingencies (Note 16)
Stockholders' Equity
Preferred stock, $0.01 par value - 1,000,000 shares authorized, no shares issued or outstanding
Common stock, $0.01 par value - 125,000,000 shares authorized, 85,681,274 shares issued and 72,219,405 shares outstanding at June 30, 2019, 84,164,130 shares issued and 70,702,261 shares outstanding at September 30, 2018	857	841
Additional paid-in capital	1,915,138	1,898,434
Accumulated other comprehensive income	14,586	13,587
Treasury stock, at cost- 13,461,869 shares	(200,956)	(200,956)
Accumulated deficit	(991,499)	(994,074)
Total stockholders' equity	738,126	717,832
Total liabilities and stockholders' equity	$ 1,492,860	$ 1,095,257