Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets Measured on Recurring Basis

The following table sets forth the fair values and methods used for measuring the fair values of financial instruments on a recurring basis, except those for which the carrying values approximate fair values:

		Fair Value
Financial Instrument	Hierarchy	March 31, 2024		December 31, 2023
		(Dollars in thousands)
Marketable securities
Debt securities (available-for-sale)	Level 1	$	79,236	$	78,250
Mortgage loans held-for-sale, net	Level 2	$	283,787	$	258,212
Derivative and financial instruments, net (Note 17)
Interest rate lock commitments	Level 2	$	2,342	$	5,118
Forward sales of mortgage-backed securities	Level 2	$	(1,231)	$	(5,388)
Mandatory delivery forward loan sale commitments	Level 2	$	127	$	(816)
Best-effort delivery forward loan sale commitments	Level 2	$	16	$	(4)

Schedule of Debt Securities, Available-for-Sale

The estimated fair value, gross unrealized holding gains, gross unrealized holding losses and amortized cost for debt securities by major classification are as follows:

	March 31, 2024								December 31, 2023
	(Dollars in thousands)
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
U.S. Government	$	79,231	$	5	$	—	$	79,236	$	78,185	$	65	$	—	$	78,250
Total Debt Securities	$	79,231	$	5	$	—	$	79,236	$	78,185	$	65	$	—	$	78,250

Schedule of Fair Value of Senior Notes

The estimated values of the senior notes in the following table are based on Level 2 inputs, which primarily reflect estimated prices for our senior notes that were provided by multiple sources.

	March 31, 2024				December 31, 2023
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(Dollars in thousands)
$300 million 3.850% Senior Notes due January 2030, net	$	298,274	$	277,798	$	298,207	$	273,580
$350 million 2.500% Senior Notes due January 2031, net	347,783		300,592		347,708		286,957
$500 million 6.000% Senior Notes due January 2043, net	491,411		506,608		491,351		464,658
$350 million 3.966% Senior Notes due August 2061, net	346,148		275,204		346,138		227,262
Total	$	1,483,616	$	1,360,202	$	1,483,404	$	1,252,457