Acquisitions (Details 1) (Fauchier, USD $) In Thousands, unless otherwise specified	Mar. 13, 2013
Fauchier
Cash	$ 8,156	[1]
Receivables	12,174	[1]
Amortizable asset management contracts	2,865
Indefinite-life fund management contracts	65,126
Goodwill	28,983	[1]
Other current liabilities, net (primarily accrued expenses and dividends payable)	(16,667)	[1]
Contingent consideration	21,566
Deferred tax liabilities	(15,638)
Total cash considerations	63,433
Total net assets acquired	$ 63,433

[1] Subject to adjustment for amounts ultimately realized, as provided for in the SPA