XML 59 R43.htm IDEA: XBRL DOCUMENT v3.19.3

Sale of Receivables (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Sale of Receivables [Abstract]
Sale of receivables to financial institutions	$ 199.6	$ 224.4	$ 560.6	$ 566.0
Charge related to sale of receivables	$ 5.6	$ 7.3	$ 17.7	$ 19.0

X

- Definition

The amount of receivables sold during the period.

+ References

No definition available.

+ Details

Name:	smp_SaleOfReceivables
Namespace Prefix:	smp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The amount of charges incurred relating to the sale of receivables during the reporting period.

+ References

No definition available.

+ Details

Name:	smp_SaleOfReceivablesRelatedCharges
Namespace Prefix:	smp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_ReceivablesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration