Subsequent Events (Details) (USD $)	3 Months Ended		1 Months Ended	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Apr. 30, 2015	Jun. 30, 2015
Subsequent Event [Line Items]
Proceeds from sales of and distributions from companies	$ 2,192,000	$ 77,187,000
Drive Factor [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Proceeds from sales of and distributions from companies			8,900,000
Amount held in escrow			1,100,000
Gain on sale of business				$ 5,900,000