Unaudited Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 269,908	$ 292,146
Restricted cash on deposit	94,495	92,813
Accounts receivable, less allowance of $5,213 in 2012 and $4,793 in 2011	241,965	212,152
Inventories	598,593	615,018
Refundable and prepaid income taxes	41,992	42,480
Other current assets	58,893	54,833
Total current assets	1,305,846	1,309,442
Property, plant and equipment, net	486,100	482,313
Goodwill	545,110	544,471
Intangible assets, net	450,857	433,275
Notes receivable from joint venture partner, less allowance of $3,100 in 2012 and $3,100 in 2011	16,015	16,015
Other non-current assets	86,461	84,207
Total assets	2,890,389	2,869,723
Current liabilities
Current portion of long-term debt	10,837	13,265
Accounts payable	132,374	170,466
Liability related to joint venture partner injunction	94,495	92,813
Accrued income taxes	22,506	19,806
Accrued employee costs	41,784	49,699
Deferred income taxes	18,807	23,449
Other current liabilities	83,696	79,026
Total current liabilities	404,499	448,524
Long-term debt	667,474	663,167
Deferred income taxes	143,911	129,945
Pension liabilities	205,882	204,248
Purchase price of VAC payable to seller	86,525	86,513
Other non-current liabilities	60,353	62,032
Stockholders' equity:
Preferred stock, $.01 par value: Authorized 2,000,000 shares, no shares issued or outstanding	0	0
Common stock, $.01 par value: Authorized 90,000,000 shares; 32,103,501 shares issued in 2012 and 32,073,642 shares issued in 2011	321	320
Capital in excess of par value	627,922	625,515
Retained earnings	717,733	705,784
Treasury stock (216,695 shares in 2012 and 208,157 shares in 2011, at cost)	(7,681)	(7,427)
Accumulated other comprehensive income (loss)	(60,952)	(93,399)
Total OM Group, Inc. stockholders' equity	1,277,343	1,230,793
Noncontrolling interests	44,402	44,501
Total equity	1,321,745	1,275,294
Total liabilities and equity	$ 2,890,389	$ 2,869,723