Self-Insurance Reserve (Changes In Self Insurance Reserve) (Details) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Self-Insurance Reserve [Abstract]
Beginning balance	$ 19,076,000	$ 7,475,000	$ 16,998,000	$ 5,103,000
Self-insurance expense provisions	2,444,000	2,678,000	4,559,000	5,050,000
Payments	(43,000)		(80,000)
Self-insurance adjustment	0	0	0	0
Ending balance	$ 21,477,000	$ 10,153,000	$ 21,477,000	$ 10,153,000

Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.24)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_SelfInsuranceReserve
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant