Earnings (Loss) Per Share Data (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Weighted Average Stock Price to include additional shares in diluted share calculation [Table Text Block]

The Company is required to include additional shares in its diluted shares outstanding calculation based on the treasury stock method when the average Omnicare stock market price for the applicable period exceeds the following amounts:

Convertible Debt	Price
3.75% convertible senior subordinated notes, due 2025	$	27.05
4.00% junior subordinated convertible debentures, due 2033	$	40.82
3.25% convertible senior debentures, due 2035	$	78.29
3.75% convertible senior subordinated notes, due 2042	$	41.19

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following is a reconciliation of the basic and diluted earnings per share (“EPS”) computations for both the numerator and denominator (in thousands, except per share data):

	Three months ended June 30,					Six months ended June 30,
2013:	Income (Numerator)		Common Shares(Denominator)	Per Common Share Amounts		Income (Numerator)		Common Shares(Denominator)		Per Common Share Amounts
Basic EPS
Net income	52,219		102,867	$	0.51	106,573		103,038		$	1.03
Effect of Dilutive Securities
Convertible securities	71		6,402			142		5,078
Stock options, units and awards	—		662			—		620
Diluted EPS
Net income plus assumed conversions	$	52,290	109,931	$	0.48	$	106,715	$	108,736	$	0.98
2012:
Basic EPS
Net income	$	18,692	110,580	$	0.17	$	74,431	111,033		$	0.67
Effect of Dilutive Securities
Convertible securities	72		2,309			143		3,314
Stock options, warrants, units and awards	—		583			—		640
Diluted EPS
Net income plus assumed conversions	$	18,764	113,472	$	0.17	$	74,574	$	114,987	$	0.65