Other Assets, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Assets held in Rabbi Trust	$ 35,413	$ 29,134
ROU assets for operating leases, net	18,344
Equity method investment	8,169	0
Capitalized software, net	8,759	4,828
Deferred loan costs, net	855	1,182
Interest rate swap derivative instrument	0	900
Other non-current assets	1,298	620
Total Other assets, net	72,838	36,664
Accumulated amortization of capitalized software	$ 34,200	$ 34,100