Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments And Contingencies Disclosure [Abstract]

Future Minimum Annual Rental Commitments under Various Non-cancellable Operating Leases

Rental Commitments

Future minimum annual rental commitments as of December 31, 2018 under various non-cancellable operating leases for our office facilities, which expire at various dates through 2032, are as follows:

Rental Commitments for Years Ended December 31,
amounts in thousands
2019	$	12,907
2020		12,470
2021		11,542
2022		10,354
2023		9,379
2024-2032		28,268
Total Minimum Operating Lease Payments	$	84,920