Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Rental Commitments under Office and Equipment Leases

Future minimum rental commitments under such office and equipment leases as at December 31, 2015 are as follows:

(Expressed in thousands)
2016	$	40,577
2017	36,989
2018	34,749
2019	29,105
2020	21,549
2021 and thereafter	113,982
	$	276,951