CONSOLIDATED STATEMENTS OF CASH FLOWS UNAUDITED (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income (loss)	$ 54,354	$ 55,739
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation expense	13,807	12,055
Amortization expense	19,915	20,406
Other operating activities	0	103
Changes in assets and liabilities, net of effects from acquisition and divestiture of businesses:
Accounts receivable and unbilled receivables, net of provision for doubtful accounts	16,666	(58,591)
Inventories	3,040	65,161
Other current and noncurrent assets	(13,218)	30,637
Accounts payable	(3,642)	(47,754)
Accrued employee compensation	(26,073)	(22,685)
Current and noncurrent liabilities	44,046	45,346
Net cash flows from operating activities	108,895	100,417
Cash flows from investing activities:
Acquisition of businesses, net of cash received	0	(563)
Capital expenditures	(23,129)	(20,239)
Other	854	512
Net cash flows used in investing activities	(22,275)	(20,290)
Cash flows from financing activities:
Payments on Term Loans	(5,313)	(6,587)
Payments on long-term borrowings and obligations	(1,684)	0
Increase (decrease) in cash overdraft balance	(9,774)	(3,151)
Payments for Omnicare common stock repurchases	302	22,328
Proceeds for stock awards and exercise of stock options, net of stock tendered in payment	445	2,519
Dividends paid	(14,479)	(7,825)
Other	92	(840)
Net Cash Provided by (Used in) Financing Activities	(31,015)	(38,212)
Net increase (decrease) in cash and cash equivalents	55,605	41,915
Cash and cash equivalents at beginning of period	454,213	580,262
Cash and cash equivalents at end of period	$ 509,818	$ 622,177