Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Summary of Fair Value Assets Associated with Pension Plan

The following table sets forth assets associated with the pension plan in “Note 16—Retirement and Other Benefits Plans” that are accounted for at fair value by Level within the fair value hierarchy.

Fair value as of December 31, 2018 (in thousands):

	Level 1		Level 2		Level 3		Total
Mutual funds	$	2,539	$	—	$	—	$	2,539
Fixed income		—		10,168		—		10,168
Cash and cash equivalents		361		—		—		361
	$	2,900	$	10,168	$	—	$	13,068

Fair value as of December 31, 2019 (in thousands):

	Level 1		Level 2		Level 3		Total
Mutual funds		2,987		—		—		2,987
Fixed income		—		10,447		—		10,447
Cash and cash equivalents		334		—		—		334
		3,321		10,447		—		13,768

Schedule of Fair Value of Redeemable Common Stock Associated Employee Stock Ownership Plan

The following table sets forth redeemable common stock associated with the ESOP in “Note 16—Retirement and Other Benefits Plans” that is accounted for at fair value by Level within the fair value hierarchy.

Fair value as of December 31, 2018 (in thousands):

	Level 1		Level 2		Level 3		Total
Redeemable Common Stock	$	—	$	—	$	1,876,309	$	1,876,309
	$	—	$	—	$	1,876,309	$	1,876,309

Schedule of Reconciliation Fair Value Measurements Using Significant Unobservable Inputs

The following table presents a reconciliation of the beginning and ending balances of the fair value measurements using significant unobservable inputs (Level 3) (in thousands):

	2018			2019
Balance at beginning of year	$	1,855,305			1,876,309
Purchases of treasury stock		(125,814	)		(6,219	)
Contributions of treasury stock to ESOP		47,043			—
Share price adjustment		99,775			883,436
Transfer to permanent equity		—			(2,753,526	)
Balance at end of year	$	1,876,309			—