Acquisitions (Details) (USD $)	0 Months Ended	3 Months Ended				9 Months Ended
	Aug. 01, 2014	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013		Aug. 01, 2014
Business Combinations [Abstract]
Purchase price	$ 14,600,000
Payments to acquire businesses		8,100,000		500,000		9,785,000		1,858,000
Contingent consideration										5,900,000
Goodwill acquired										11,500,000
Customer relationship intangible assets acquired										1,600,000
Transaction costs		$ 566,000	[1]	$ 0	[1]	$ 566,000	[1]	$ 0	[1]

[1] See Note (C), "Acquisitions," for additional information.