Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 66.6	$ 75.7
Trade and other accounts receivable (less allowances of $4.7 million and $3.8 million respectively)	206.2	292.0
Inventories (less allowances of $18.3 million and $14.5 million respectively):
Finished goods	171.3	173.9
Raw materials	68.5	70.7
Total inventories	239.8	244.6
Prepaid expenses	7.9	14.7
Prepaid income taxes	8.1	2.5
Other current assets	0.2	0.8
Total current assets	528.8	630.3
Net property, plant and equipment	204.2	198.7
Operating lease right-of-use assets	29.7	32.4
Goodwill	367.2	363.0
Other intangible assets	78.6	113.5
Deferred tax assets	9.4	9.1
Pension asset	120.0	115.9
Other non-current assets	5.8	5.9
Total assets	1,343.7	1,468.8
Current liabilities:
Accounts payable	81.8	122.0
Accrued liabilities	125.7	154.0
Current portion of finance leases	0.4	1.0
Current portion of plant closure provisions	5.2	5.6
Current portion of accrued income taxes	5.4	10.3
Current portion of operating lease liabilities	11.3	10.6
Total current liabilities	229.8	303.5
Long-term debt	0.0	58.6
Finance leases, net of current portion	0.2	0.5
Plant closure provisions, net of current portion	52.7	43.7
Accrued income taxes, net of current portion	32.4	36.2
Unrecognized tax benefits	15.5	16.4
Operating lease liabilities, net of current portion	18.5	21.9
Deferred tax liabilities	47.2	49.6
Pension liabilities and post-employment benefits	18.7	17.8
Other non-current liabilities	2.7	1.7
Equity:
Common stock, $0.01 par value, authorized 40,000,000 shares, issued 29,554,500 shares	0.3	0.3
Additional paid-in capital	334.4	330.4
Treasury stock (4,974,805 and 5,047,278 shares at cost, respectively)	(93.7)	(93.3)
Retained earnings	748.8	755.5
Accumulated other comprehensive loss	(64.3)	(74.4)
Total Innospec stockholders' equity	925.5	918.5
Non-controlling interest	0.5	0.4
Total equity	926.0	918.9
Total liabilities and equity	$ 1,343.7	$ 1,468.8

Prepaid Expense Current Excluding Tax

No definition available.

Name:	iosp_PrepaidExpenseCurrentExcludingTax
Namespace Prefix:	iosp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).