Commitments and Contingencies - Narrative (Detail)	3 Months Ended
	Mar. 31, 2014 USD ($)	Mar. 31, 2013 USD ($)	Dec. 31, 2013 USD ($)	Sep. 30, 2013 USD ($)	Sep. 30, 2013 EUR (€)	Mar. 31, 2012 Affinion Group, LLC [Member]	Apr. 30, 2012 Stone Tower USD ($)	Mar. 31, 2014 Gulf Stream USD ($)	Dec. 31, 2013 Gulf Stream USD ($)
Long-term Purchase Commitment [Line Items]
Maximum exposure relating to the financial guarantees	$ 300,000
Unfunded capital commitments	830,900,000		843,700,000
Aggregate after-tax cash distribution obligation to acquire additional common units	25.00%
KBC Commitment				25,100,000	18,200,000
Ownership stake	0.06%					68.00%
Expenses related to non-cancellable contractual obligations	10,600,000	10,600,000
Cumulative revenues recognized if existing investments become worthless	4,904,000,000		4,858,000,000
Underwriting Commitments	0
Contingent consideration obligations							117,700,000
Fair value of the contingent obligation	112,900,000		121,400,000
Fair Value of Contingent Consideration liability								$ 13,600,000	$ 14,100,000