Subsequent Events (Details) (USD $) In Millions, except Share data, unless otherwise specified				0 Months Ended		0 Months Ended
	Jul. 17, 2013 Subsequent Event [Member]	Jun. 30, 2013 Spigit [Member]	Jul. 17, 2013 UCP [Member] Subsequent Event [Member] director	Jul. 17, 2013 Common Class A [Member] UCP [Member] Subsequent Event [Member]	Jul. 17, 2013 Common Class B [Member] UCP [Member] Subsequent Event [Member] security	Jul. 17, 2013 IPO [Member] Common Class A [Member] UCP [Member] Subsequent Event [Member]	Aug. 01, 2013 Equity Method Investee, Spigit [Member] Subsequent Event [Member]	Aug. 01, 2013 Equity Method Investee, Spigit [Member] Spigit [Member] Subsequent Event [Member]
Subsequent Event [Line Items]
Equity Method Investment, Ownership Percentage		27.00%					22.60%	30.00%
Shares issued during period, shares						7,750,000
Share price (in dollars per share)						$ 15
Proceeds from IPO				$ 108.1
Number of Securities Outstanding					2
Voting Interest Controlled by Parent			57.70%
Voting Interest Not Controlled by Parent			42.30%
Number of individuals, parent has rights to nominated on board of directors			2
Percentage ownership required to maintain right to elect two members to board of directors			25.00%
Percentage ownership required to maintain right to elect a members to board of directors			10.00%
Percentage of cash payment from subsidiary for increases in tax basis			85.00%
Percentage of cash savings realized from increase in tax basis	15.00%