Business Acquisition Acquiree operating results to date since acquisition (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
Revenues	$ 380,585	$ 314,027	$ 245,535
Net income	23,979	16,178	10,389
MTS-Medication Technologies [Member]
Business Acquisition [Line Items]
Revenues		47,200
Non-acute care solutions [Member]
Business Acquisition [Line Items]
Revenues	95,919	53,867
Non-acute care solutions [Member] | MTS-Medication Technologies [Member]
Business Acquisition [Line Items]
Net income		$ 2,900