The below fair value tables relate to our TRP pension plan assets (in thousands):



Pension Plan Assets
Fair value measurement as of Dec. 31, 2018
	Level 1		Level 2		Level 3		Total
Assets:
Cash and other	$	958	$	—	$	—	$	958
Corporate stock	83,489		—		—		83,489
Interest in registered investment companies	39,007		—		—		39,007
Total	$	123,454	$	—	$	—	$	123,454
Pension plan investments valued using net asset value as a practical expedient:
Common collective trust - equities							$	104,993
Common collective trust - fixed income							158,580
Hedge funds							16,126
Partnership/joint venture interests							4,397
Total fair value of plan assets							$	407,550



Fair value measurement as of Dec. 31, 2017
	Level 1		Level 2		Level 3		Total
Assets:
Cash and other	$	935	$	—	$	—	$	935
Corporate stock	82,698		—		—		82,698
Interest in registered investment companies	45,186		—		—		45,186
Total	$	128,819	$	—	$	—	$	128,819
Pension plan investments valued using net asset value as a practical expedient:
Common collective trust - equities							$	117,778
Common collective trust - fixed income							170,977
Hedge funds							15,756
Partnership/joint venture interests							5,819
Total fair value of plan assets							$	439,149