ACQUISITIONS Acquisition and Integration Costs (Details) (All current acquirees, Other Acquisition and Integration Expenses, USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
All current acquirees | Other Acquisition and Integration Expenses
Business Combination, Separately Recognized Transactions [Line Items]
Legal and professional fees	$ 1,689	$ 1,130	$ 4,235	$ 4,089
Financial advisory fees	0	2,413	0	2,413
Employee costs including redundant salaries and benefits and severance	312	876	1,892	2,353
Facilities consolidation and discontinuation	364	198	1,022	1,214
Change in revenue reserves related to acquired accounts receivable	451	0	5,871	0
Legal settlement	1	0	334	2,300
Other	105	273	1,400	656
Total	$ 2,922	$ 4,890	$ 14,754	$ 13,025