Commitments and Contingencies (Tables)

12 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule Of Future Minimum Rental Payments For Operating Leases

2019	$	130,615
2020	112,001
2021	98,682
2022	93,167
2023	85,434
Thereafter	113,296
Total(1)	$	633,195

Lease Liability Reserve Roll Forward [Table Text Block]

Balance as of March 31, 2016	$	52,240
Accrued charges for vacated and subleased space (1) (2)	9,454
Payments, net	(16,531		)
Adjustments and other	(5,475		)
Balance as of March 31, 2017	39,688
Payments, net	(13,019		)
Adjustments and other	2,580
Balance as of March 31, 2018	$	29,249

(1) Included in Occupancy expense in the Consolidated Statements of Income (Loss)

(2) Includes $9,069 related to the restructuring of Permal for the combination with EnTrust

Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table Text Block]

	RARE Infrastructure			Martin Currie			QS Investors			Other(2)			Total
Acquisition Date	October 21, 2015			October 1, 2014			May 30, 2014			Various
Maximum Remaining Contingent Consideration(1)	$	81,465		$	—		$	23,400		$	1,900		$	106,765
Contingent Consideration Liability
Balance as of March 31, 2016	$	27,145		$	41,222		$	13,749		$	2,469		$	84,585
Initial purchase accounting accrual	—			—			—			2,000			2,000
Payment	—			—			(6,587		)	—			(6,587		)
Fair value adjustments	(10,000		)	(25,000		)	(2,500		)	(2,000		)	(39,500		)
Foreign exchange and accretion	299			(4,204		)	179			38			(3,688		)
Balance as of March 31, 2017	17,444			12,018			4,841			2,507			36,810
Initial purchase accounting accrual	—			—			—			1,900			1,900
Payment	—			—			—			(3,242		)	(3,242		)
Fair value adjustments	(17,413		)	(13,355		)	(1,300		)	739			(31,329		)
Foreign exchange and accretion	(31		)	1,337			166			(4		)	1,468
Balance as of March 31, 2018	$	—		$	—		$	3,707		$	1,900		$	5,607
Balance Sheet Classification
Current Contingent consideration	$	—		$	—		$	3,707		$	—		$	3,707
Non-current Contingent consideration	—			—			—			1,900			1,900
Balance as of March 31, 2018	$	—		$	—		$	3,707		$	1,900		$	5,607

(1) Using the applicable exchange rate as of March 31, 2018, for amounts denominated in currencies other than the U.S. dollar.

(2) Includes amounts related to two small acquisitions completed in December 2017 and the acquisition of PK Investments on December 31, 2015.