Business Acquisitions (Intangible Assets Acquired) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014
Qatarlyst
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired intangible assets, Fair Value	$ 5,396
Acquired intangible assets, Weighted Average Useful Life (in years)	10 years 3 months
Qatarlyst | Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired intangible assets, Fair Value	4,761
Acquired intangible assets, Weighted Average Useful Life (in years)	11 years 0 months
Qatarlyst | Developed Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired intangible assets, Fair Value	635
Acquired intangible assets, Weighted Average Useful Life (in years)	5 years 0 months
Qatarlyst | Noncompete Agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired intangible assets, Fair Value	0
Acquired intangible assets, Weighted Average Useful Life (in years)	0 years
Qatarlyst | Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired intangible assets, Fair Value	0
Acquired intangible assets, Weighted Average Useful Life (in years)	0 years
Curepet, Healthcare Magic, Vertex, Oakstone, I3 [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired intangible assets, Fair Value		6,872
Acquired intangible assets, Weighted Average Useful Life (in years)		8 years 9 months
Curepet, Healthcare Magic, Vertex, Oakstone, I3 [Member] | Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired intangible assets, Fair Value		5,275
Acquired intangible assets, Weighted Average Useful Life (in years)		9 years 11 months 10 days
Curepet, Healthcare Magic, Vertex, Oakstone, I3 [Member] | Developed Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired intangible assets, Fair Value		1,236
Acquired intangible assets, Weighted Average Useful Life (in years)		4 years 1 month 30 days
Curepet, Healthcare Magic, Vertex, Oakstone, I3 [Member] | Noncompete Agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired intangible assets, Fair Value		226
Acquired intangible assets, Weighted Average Useful Life (in years)		7 years
Curepet, Healthcare Magic, Vertex, Oakstone, I3 [Member] | Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired intangible assets, Fair Value		$ 135
Acquired intangible assets, Weighted Average Useful Life (in years)		5 years 6 months 3 days