Summarized Financial Information Related to Companies Accounted for Under Equity Method of Accounting (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Schedule Of Equity Method Investments [Line Items]
Cash and cash equivalents and Other current assets	$ 2,002	[1]	$ 11,268	[2]
Non-current assets	399	[1]	13,218	[2]
Total Assets	8,310	[1]	30,058	[2]
Current liabilities	11,085	[1]	21,115	[2]
Non-current liabilities and Long-term debt	65	[1]	1,397	[2]
Stockholders’ deficit	(2,840)	[1]	(5,124)	[2]
Total liabilities and stockholders’ deficit	8,310	[1]	30,058	[2]
Total carrying value	775	[1]	13,333	[2]
Cash and Cash Equivalents
Schedule Of Equity Method Investments [Line Items]
Cash and cash equivalents and Other current assets	5,909	[1]	5,572	[2]
Long-term Debt
Schedule Of Equity Method Investments [Line Items]
Non-current liabilities and Long-term debt			$ 12,670	[2]

[1] Includes (ICG voting ownership): Acquirgy (25%) and CIML (38%).

[2] Includes (ICG voting ownership): Acquirgy (25%), Freeborders (31%) and WhiteFence (36%).