Corporate income tax rate.

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- Definition

Effective income tax rate continuing operations excluding impact of net deferred tax liability.

+ References

No definition available.

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- Definition

Income Tax Disclosure [Line Items]

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No definition available.

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- Definition

Income Tax Examination, Years Open for Examination

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No definition available.

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- Definition

Amount of income tax expense (benefit) for remeasurement of deferred tax from change in tax rate pursuant to Tax Cuts and Jobs Act.

+ References

No definition available.

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(2))
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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-Publisher FASB
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-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
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- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
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Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Dec. 31, 2017	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Line Items]
Effective tax rate		28.80%	23.80%
Provisional remeasurement of deferred tax liabilities resulted in an discrete tax benefit		$ 0	$ 11,200,000
Effective income tax rate excluding impact of net deferred tax liability		28.80%	33.90%
Unrecognized income tax benefits		$ 0
Federal
Income Tax Disclosure [Abstract]
Number of years for examination		4 years
Federal \| Tax Year 2017
Income Tax Disclosure [Line Items]
Corporate income tax rate	35.00%
Federal \| Tax Year2019
Income Tax Disclosure [Line Items]
Corporate income tax rate		21.00%
New York
Income Tax Disclosure [Abstract]
Number of years for examination		4 years
Connecticut
Income Tax Disclosure [Abstract]
Number of years for examination		4 years
Pennsylvania
Income Tax Disclosure [Abstract]
Number of years for examination		4 years
New Jersey
Income Tax Disclosure [Abstract]
Number of years for examination		5 years