Commitments and Contingencies (Tables)

6 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule Of Future Minimum Rental Payments For Operating Leases

Remaining fiscal 2018	$	67,830
2019	119,054
2020	103,724
2021	92,310
2022	90,032
Thereafter	198,910
Total(1)	$	671,860

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	(7,454		)
Adjustments and other	977
Balance as of September 30, 2017	$	33,211

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

(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)	$	83,174		$	435,884		$	23,400		$	2,500		$	544,958
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
Fair value adjustments	(15,250		)	—			(1,300		)	—			(16,550		)
Foreign exchange and accretion	(14		)	840			83			(7		)	902
Balance as of September 30, 2017	$	2,180		$	12,858		$	3,624		$	2,500		$	21,162
Balance Sheet Classification
Current Contingent consideration	$	—		$	12,858		$	3,624		$	2,500		$	18,982
Non-current Contingent consideration	2,180			—			—			—			2,180
Balance as of September 30, 2017	$	2,180		$	12,858		$	3,624		$	2,500		$	21,162

(1) Using the applicable exchange rate as of September 30, 2017, for amounts denominated in currencies other than the U.S. dollar.

(2) Includes amounts related to the acquisition of PK Investments on December 31, 2015.