Minimum Lease Commitments (Tables)

12 Months Ended

Dec. 31, 2015

Leases [Abstract]

Approximate Minimum Annual Gross Rental Payments and Gross Rental Income

The approximate minimum annual gross rental payments and gross rental receipts under noncancelable agreements for office space with remaining terms in excess of one year as of December 31, 2015, are as follows (in thousands):

	Payments		Receipts
2016	$	10,515	$	5,163
2017	10,139		3,946
2018	9,725		2,688
2019	8,824		1,729
2020	9,516		1,214
2021 and thereafter	114,513		1,058
Total minimum future amounts	$	163,232	$	15,798