Business Acquisitions (Details) - USD ($) $ in Thousands	Jul. 01, 2015	Dec. 31, 2015	Jun. 30, 2015
Business Acquisition [Line Items]
Goodwill		$ 556,256	$ 550,366
Business Acquisition, Bayside Business Solutions [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Jul. 01, 2015
Payments to Acquire Businesses, Gross	$ 10,000
Current assets	1,922
Long-term assets	253
Identifiable intangible assets	5,005
Total liabilities assumed	(3,064)
Total identifiable net assets	4,116
Goodwill	5,884
Net assets acquired	$ 10,000
Business Acquisition, Purchase Price Allocation, Goodwill, Expected Tax Deductible Percent	0.00%
Cash Acquired from Acquisition	$ 1,725
Business Combination, Acquired Receivables, Fair Value	178
Business Combination, Acquired Receivables, Gross Contractual Amount	178
Business Combination, Acquired Receivables, Estimated Uncollectible	0
Business Acquisition, Transaction Costs	55
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	1,730
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	(310)
Customer Relationships [Member] | Business Acquisition, Bayside Business Solutions [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 3,402
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Computer Software, Intangible Asset [Member] | Business Acquisition, Bayside Business Solutions [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 659
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Other Intangible Assets [Member] | Business Acquisition, Bayside Business Solutions [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 944
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	20 years