Commitments, Contingencies and Guarantees (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Commitments for Noncancelable Operating Leases

Future minimum annual rentals (exclusive of month-to-month leases, real estate taxes, maintenance and certain other charges) under these leases at December 31, 2017 are as follows (in thousands):

2018	$	94,734
2019	84,110
2020	68,195
2021	62,507
2022	59,844
Thereafter	638,441
	1,007,831
Less:  sublease income	(29,633		)
	$	978,198

Schedule of commitments

The following table summarizes commitments associated with certain business activities (in millions):

	Expected Maturity Date
	2018		2019		2020 and 2021		2022 and 2023		2024 and Later		Maximum Payout
Equity commitments (1)	$	33.5	$	0.2	$	18.7	$	—	$	125.8	$	178.2
Loan commitments (1)	277.7		—		56.5		—		—		334.2
Mortgage-related and other purchase commitments	—		177.7		—		—		—		177.7
Underwriting commitments	11.0		—		—		—		—		11.0
Forward starting reverse repos (2)	3,211.1		—		—		—		—		3,211.1
Forward starting repos (2)	2,987.9		—		—		—		—		2,987.9
Other unfunded commitments (1)	218.8		122.9		18.3		153.0		—		513.0
	$	6,740.0	$	300.8	$	93.5	$	153.0	$	125.8	$	7,413.1

(1) Equity commitments, loan commitments and other unfunded commitments are presented by contractual maturity date. The amounts are however mostly available on demand.

(2) At December 31, 2017, $3,207.4 million within forward starting securities purchased under agreements to resell and $2,982.8 million within securities sold under agreements to repurchase settled within three business days.

Schedule of Notional Amounts Associated with Derivative Contracts Meeting Definition Of Guarantee

The following table summarizes the notional amounts associated with our derivative contracts meeting the definition of a guarantee under GAAP as of December 31, 2017 (in millions):

	Expected Maturity Date
Guarantee Type	2018		2019		2020 and 2021		2022 and 2023		2024 and Later		Notional/ Maximum Payout
Derivative contracts – non-credit related	$	24,454.8	$	2,420.2	$	150.5	$	45.9	$	466.3	$	27,537.7
Written derivative contracts – credit related	—		42.0		20.5		155.7		—		218.2
Total derivative contracts	$	24,454.8	$	2,462.2	$	171.0	$	201.6	$	466.3	$	27,755.9