Financing Receivable, Allowance For Credit Loss, Forecast Period

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- Definition

Financing Receivable, Credit Loss, Expense (Reversal), Period Increase (Decrease)

+ References

No definition available.

+ Details

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

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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

No definition available.

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- Definition

Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

+ References

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- Definition

Amount of credit loss expense (reversal of expense) for financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(11))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

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Allowance for Credit Losses - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Jan. 01, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Adjustment to allowance for credit loss	$ 108,348	$ 120,998	$ 108,348	$ 120,998	$ 109,636	$ 117,612	$ 114,609		$ 62,224
Provision for credit losses on loans	2,302	19,302	7,612	123,564
Provision for credit losses	1,085	(1,816)	1,476	727
COVID-19
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, credit loss, expense (reversal), period increase (decrease)	14,100	17,500	115,600	124,300
Provision for credit losses on loans	3,400		8,700
Provision for credit losses	1,100		$ 1,500
Forecast period			2 years
Commercial and industrial \| Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Adjustment to allowance for credit loss	26,239	14,211	$ 26,239	14,211	$ 14,426	$ 16,100	$ 19,164		15,681
Provision for credit losses on loans	$ 11,599	$ (4,155)	$ 14,552	$ 62,949
Impact of new accounting standard
Financing Receivable, Allowance for Credit Loss [Line Items]
Adjustment to allowance for credit loss									27,352
Impact of new accounting standard \| ASU No. 2016-13
Financing Receivable, Allowance for Credit Loss [Line Items]
Adjustment to allowance for credit loss								$ 27,400
Impact of new accounting standard \| S&T legacy loans \| ASU No. 2016-13
Financing Receivable, Allowance for Credit Loss [Line Items]
Adjustment to allowance for credit loss								8,200
Impact of new accounting standard \| Commercial and industrial \| Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Adjustment to allowance for credit loss									$ 7,853
Impact of new accounting standard \| Commercial and industrial \| Commercial \| ASU No. 2016-13
Financing Receivable, Allowance for Credit Loss [Line Items]
Adjustment to allowance for credit loss								9,900
Impact of new accounting standard \| DNB \| ASU No. 2016-13
Financing Receivable, Allowance for Credit Loss [Line Items]
Adjustment to allowance for credit loss								$ 9,300