Goodwill and Other Intangible Assets Components of Other Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Amortized:
Gross amortized other intangible assets	$ 81,435	$ 75,091
Accumulated Amortization	(18,900)	(13,268)
Net amortized other intangible assets	62,535	61,823
Total other intangible assets, net	107,795	103,011
Non-compete agreements
Amortized:
Total estimated life	5 years
Gross amortized other intangible assets	540	540
Dealer/customer related
Amortized:
Total estimated life	7 years
Gross amortized other intangible assets	65,728	59,244
Developed technology
Amortized:
Gross amortized other intangible assets	15,167	15,307
Developed technology | Minimum [Member]
Amortized:
Total estimated life	5 years
Developed technology | Maximum
Amortized:
Total estimated life	7 years
Brand names
Non-amortizable - indefinite lived:
Non-amortizable, Net	$ 45,260	$ 41,188