Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Minimum Rental Commitments Under Non-Cancelable Leases

The approximate minimum rental commitments for 2017 and thereafter under non-cancelable leases in effect at December 31, 2016 were as follows (in thousands):

2017	$	85,143
2018	70,863
2019	55,691
2020	47,642
2021	33,662
Thereafter	66,939
	$	359,940