Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following tables provide the financial assets and liabilities carried at fair value measured on a recurring basis (in thousands):

As of December 31, 2019			Fair value measurements at reporting date using:
	Total Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
Assets:
Assets held in rabbi trusts	$	5,169	$	53	$	5,116	$	—
As of December 31, 2018			Fair value measurements at reporting date using:
	Total Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
Assets:
Assets held in rabbi trusts	$	4,641	$	87	$	4,554	$	—