Condensed Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 451,712	$ 400,597
Restricted cash on deposit	81,105	68,096
Accounts receivable, less allowance of $4,089 in 2011 and $5,187 in 2010	180,624	155,465
Inventories	296,510	293,625
Refundable and prepaid income taxes	40,547	40,740
Other current assets	40,199	44,602
Total current assets	1,090,697	1,003,125
Property, plant and equipment, net	251,904	256,098
Goodwill	309,069	306,888
Intangible assets, net	148,957	153,390
Notes receivable from joint venture partner, less allowance of $5,200 in 2011 and 2010	13,915	13,915
Other non-current assets	41,729	39,292
Total assets	1,856,271	1,772,708
Current liabilities
Current portion of long-term debt		30,000
Accounts payable	119,752	105,900
Liability related to joint venture partner injunction	81,105	68,096
Accrued income taxes	4,815	8,321
Accrued employee costs	28,850	37,932
Deferred revenue	7,731	9,417
Other current liabilities	29,421	24,658
Total current liabilities	271,674	284,324
Long-term debt	120,000	90,000
Deferred income taxes	23,632	23,499
Uncertain tax positions	12,898	14,796
Pension liabilities	52,292	58,107
Other non-current liabilities	27,294	25,364
Stockholders' equity:
Preferred stock, $.01 par value: Authorized 2,000,000 shares, no shares issued or outstanding
Common stock, $.01 par value: Authorized 90,000,000 shares; 30,752,606 shares issued in 2011 and 30,725,792 shares issued in 2010	307	307
Capital in excess of par value	582,628	578,948
Retained earnings	723,154	667,882
Treasury stock (208,157 shares in 2011 and 202,556 shares in 2010, at cost)	(7,427)	(7,234)
Accumulated other comprehensive income (loss)	8,499	(3,119)
Total OM Group, Inc. stockholders' equity	1,307,161	1,236,784
Noncontrolling interests	41,320	39,834
Total equity	1,348,481	1,276,618
Total liabilities and equity	$ 1,856,271	$ 1,772,708