Loss contingency claims settled amount.

No definition available.

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- Definition

Loss contingency number of plaintiffs, dismissed.

+ References

No definition available.

+ Details

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- Definition

Number of firefighters whose claims may be considered as part of this settlement offer.

+ References

No definition available.

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- Definition

Settlement offer amount to each firefighter who has already filed a lawsuit and is eligible to be part of the settlement.

+ References

No definition available.

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- Definition

Settlement offer amount to each firefighter who has not filed a case and is eligible to be part of the settlement.

+ References

No definition available.

+ Details

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- Definition

Amount awarded from other party in judgment or settlement of litigation.

+ References

No definition available.

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- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
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-Name Accounting Standards Codification
-Section 50
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-URI https://asc.fasb.org//1943274/2147482425/460-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI https://asc.fasb.org//1943274/2147483076/450-20-50-4

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147483076/450-20-50-4

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI https://asc.fasb.org//1943274/2147483076/450-20-50-9

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Number of claims dismissed.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The number of claims settled and dismissed during the period.

+ References

+ Details

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI https://asc.fasb.org//1943274/2147483076/450-20-50-9

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- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

+ Details

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- Definition

Number of plaintiffs that have filed claims pertaining to a loss contingency.

+ References

+ Details

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- Definition

Number of pending claims pertaining to a loss contingency.

+ References

+ Details

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- References

No definition available.

+ Details

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Legal Proceedings - Additional Information (Details)								1 Months Ended												4 Months Ended	5 Months Ended	6 Months Ended	7 Months Ended	12 Months Ended				36 Months Ended	180 Months Ended
Legal Proceedings - Additional Information (Details)	Dec. 20, 2021 USD ($) Plaintiff	Apr. 25, 2017 USD ($)	Feb. 24, 2017 Plaintiff	Sep. 17, 2014 Case Plaintiff	Nov. 30, 2012 Plaintiff	Apr. 29, 2011 USD ($)	Apr. 22, 2011 USD ($) Plaintiff	Mar. 31, 2018 USD ($) Plaintiff	Nov. 30, 2017 Plaintiff	Aug. 31, 2017 Plaintiff	May 31, 2016 Plaintiff	Nov. 30, 2015 Plaintiff	Jan. 31, 2015 case	Jan. 31, 2015 Plaintiff	Jan. 31, 2015 Case	Dec. 31, 2014 Plaintiff	Mar. 31, 2014 Plaintiff	Dec. 31, 2012 Plaintiff	Nov. 30, 2011 Plaintiff	Jul. 31, 2013 Plaintiff	Dec. 31, 2015 Plaintiff case	Oct. 31, 2016 Plaintiff Case	Oct. 31, 2012 Plaintiff case	Dec. 31, 2017 USD ($) Plaintiff	Dec. 31, 2010 USD ($) Plaintiff case	Dec. 31, 2009 USD ($) Plaintiff	Dec. 31, 2008 Plaintiff	Dec. 31, 2009 case Plaintiff	Dec. 31, 2013 case Plaintiff	Jan. 04, 2011 Plaintiff
Loss Contingencies
Number of plaintiffs								921
Settlement offer per eligible plaintiff who has already filed a lawsuit \| $								$ 700
Settlement offer per eligible plaintiff who has not already filed a lawsuit \| $								$ 300
Number of firefighters considered as part of the settlement								2,160
Number of plaintiffs cases dismissed					2
Loss Contingency, Settlement [Abstract]
Litigation Settlement, Amount Awarded from Other Party \| $		$ 100,000
Chicago Firefighter Plaintiffs
Loss Contingencies
Number of plaintiffs			1,770
Responsive Settlement Candidates
Loss Contingencies
Number of plaintiffs																								717
SettlementCandidates [Domain]
Loss Contingencies
Number of plaintiffs	462																							1,090
Settlement Agreement
Loss Contingencies
Number of plaintiffs							1,069
Hearing loss settlement \| $						$ 3,800,000
Litigation settlement, amount awarded to other party \| $							$ 3,600,000
Circuit Court Of Cook County
Loss Contingencies
Number of plaintiffs																													2,816
Number of new claims filed \| case																													40
Number of claims settled and dismissed																											27
Court Of Common Pleas Philadelphia County
Loss Contingencies
Damages maximum amount \| $																									$ 100,000
Number of claimants settled																														1,125
Number of claims dismissed \| case																												1
Number of claims settled and dismissed \| case																									2			3
Erie County Firefighter Plaintiffs \| Court Of Common Pleas Philadelphia County
Loss Contingencies
Number of plaintiffs																	61
District of Columbia Firefighter Plaintiffs \| Federal Court, Eastern District of Pennsylvania
Loss Contingencies
Number of plaintiffs														11							193
Number of new claims filed \| case													1
Outside Chicago Firefighter Plaintiffs \| CookCountyandDupageCounty
Loss Contingencies
Litigation settlement, amount awarded to other party \| $	$ 200,000
Lackawanna Firefighter Plaintiffs \| Lackawanna County Pennsylvania
Loss Contingencies
Number of plaintiffs										70
Number of new claims filed										5
Florida Firefighters Plaintiffs
Loss Contingencies
Number of plaintiffs																						1,084
Chicago Firefighter Plaintiffs
Loss Contingencies
Number of plaintiffs																		3	8
Chicago Firefighter Plaintiffs \| Circuit Court Of Cook County
Loss Contingencies
Number of plaintiffs																										9
Litigation settlement, amount awarded to other party \| $																								$ 700		$ 400,000
New Jersey Firefighter Plaintiffs \| Superior Court of New Jersey, Union County
Loss Contingencies
Number of plaintiffs												34
Philadelphia Firefighter Plaintiffs \| Court Of Common Pleas Philadelphia County
Loss Contingencies
Number of plaintiffs									1					70	7	3							20	155	9			71
Number of new claims filed \| case													2								9		20
Number of claims dismissed \| case																							5
New York City Firefighter Plaintiffs \| Lackawanna County Pennsylvania
Loss Contingencies
Number of plaintiffs										1
Pittsburgh Firefighter Plaintiffs \| Allegheny County Pennsylvania
Loss Contingencies
Number of plaintiffs																				247
Number of new claims filed																				19
Number of claims dismissed											55
New Jersey Firefighter Plaintiffs
Loss Contingencies
Number of plaintiffs																						194
Number of new claims filed \| Case																						9
Buffalo Firefighter Plaintiffs \| Supreme Court of State of New York Erie County
Loss Contingencies
Number of plaintiffs				193
Number of new claims filed \| Case				20