XML 34 R39.htm IDEA: XBRL DOCUMENT v2.4.0.8

Financial Instruments and Marketable Securities (Future Maturities Of Available-For-Sale Securities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost, Maturities Less Than Twelve Months	$ 197
Available-for-sale Securities, Fair Value, Maturities Less Than Twelve Months	451
Available-for-sale Securities, Amortized Cost, Maturities Greater Than Twelve Months	0
Available-for-sale Securities, Fair Value, Maturities Greater Than Twelve Months	0
Common Stock
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost, Maturities Less Than Twelve Months	197
Available-for-sale Securities, Fair Value, Maturities Less Than Twelve Months	451
Available-for-sale Securities, Amortized Cost, Maturities Greater Than Twelve Months	0
Available-for-sale Securities, Fair Value, Maturities Greater Than Twelve Months	$ 0

X

- Definition

Available-for-sale Securities, Amortized cost, Greater than twelve months

+ References

No definition available.

+ Details

Name:	fast_AvailableForSaleSecuritiesAmortizedCostGreaterThanTwelveMonths
Namespace Prefix:	fast_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Available-for-sale Securities, Amortized Cost, Less Than Twelve Months

+ References

No definition available.

+ Details

Name:	fast_AvailableForSaleSecuritiesAmortizedCostLessThanTwelveMonths
Namespace Prefix:	fast_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Available-for-sale Securities, Fair Value, Less than Twelve Months

+ References

No definition available.

+ Details

Name:	fast_AvailableForSaleSecuritiesFairValueLessThanTwelveMonths
Namespace Prefix:	fast_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Available-for-sale Securities, Fair Value, Maturity greater than twelve months

+ References

No definition available.

+ Details

Name:	fast_AvailableForSaleSecuritiesFairValueMaturityGreaterThanTwelveMonths
Namespace Prefix:	fast_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

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