XML 37 R35.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Long-Term Debt (Details) (USD $) | 0 Months Ended |  | 0 Months Ended |  |  | 0 Months Ended |  |  |  |  |  |  | 0 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2012 | Dec. 31, 2011 | May 15, 2012 Maximum | May 15, 2012 Minimum | May 15, 2012 Leverage Ratio Greater Than or Equal to 3 | May 15, 2012 Leverage Ratio Less Than 3 but Greater Than or Equal to 2 | May 15, 2012 Leverage Ratio Less Than 2 | Sep. 30, 2012 Term Loan Facility | Dec. 31, 2011 Term Loan Facility | May 15, 2012 Term Loan Facility $100 million term A loan facility, due May 2017 | Sep. 30, 2012 Term Loan Facility $100 million term A loan facility, due May 2017 | Dec. 31, 2011 Term Loan Facility $100 million term A loan facility, due May 2017 | Sep. 30, 2012 Term Loan Facility $365 million term B loan facility, due May 2019 | May 15, 2012 Term Loan Facility $365 million term B loan facility, due May 2019 | Dec. 31, 2011 Term Loan Facility $365 million term B loan facility, due May 2019 | May 15, 2012 Term Loan Facility $365 million term B loan facility, due May 2019 Eurodollar | May 15, 2012 Term Loan Facility $365 million term B loan facility, due May 2019 Base Rate | May 15, 2012 Term Loan Facility Revolving Loans and Term A Loans Eurodollar Maximum | May 15, 2012 Term Loan Facility Revolving Loans and Term A Loans Eurodollar Minimum | May 15, 2012 Term Loan Facility Revolving Loans and Term A Loans Base Rate Maximum | May 15, 2012 Term Loan Facility Revolving Loans and Term A Loans Base Rate Minimum | May 15, 2012 Term Loan Facility Senior Secured Credit Agreement | May 15, 2012 Term Loan Facility Senior Secured Credit Agreement Federal Funds Rate | May 15, 2012 Term Loan Facility Senior Secured Credit Agreement One-Month Eurodollar Rate | Sep. 30, 2012 Revolving Credit Facility | Dec. 31, 2011 Revolving Credit Facility | Sep. 30, 2012 Revolving Credit Facility $75 million revolving credit facility, due May 2017 | May 15, 2012 Revolving Credit Facility $75 million revolving credit facility, due May 2017 | Dec. 31, 2011 Revolving Credit Facility $75 million revolving credit facility, due May 2017 | May 15, 2012 Revolving Credit Facility $75 million revolving credit facility, due May 2017 Letters of Credit
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Secured Debt | $ 439,088,000 | $ 86,750,000 |  |  |  |  |  | $ 0 | $ 43,750,000 |  | $ 95,000,000 | $ 0 | $ 334,088,000 |  | $ 0 |  |  |  |  |  |  |  |  |  | $ 0 | $ 43,000,000 | $ 10,000,000 |  | $ 0 |
Face amount of term loan |  |  |  |  |  |  |  |  |  | 100,000,000 |  |  |  | 365,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75,000,000 |  |
Term of instrument |  |  |  |  |  |  |  |  |  | 5 years |  |  |  | 7 years |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |
Letter of Credit, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,000,000
Increase to borrowing capacity available under credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75,000,000 |  |  |  |  |  |  |  |
Description of variable rate basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | federal funds rate | one-month Eurodollar rate |  |  |  |  |  |
Basis spread on variable rate borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.75% | 2.75% | 3.25% | 2.75% | 2.25% | 1.75% |  | 0.50% | 1.00% |  |  |  |  |  |
Revolving credit facility, unused portion, commitment fee percentage |  |  |  |  | 0.50% | 0.40% | 0.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Frequency of amortization payment |  |  |  |  |  |  |  |  |  | quarterly amortization payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly amortization payments |  |  |  |  |  |  |  |  |  | $ 2,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Leverage ratio | 2.96 |  | 4.50 | 3.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition Debt Instrument, Term of Instrument + References No definition available. + Details
Name: | asgn_DebtInstrumentTermOfInstrument
Namespace Prefix: | asgn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Maximum borrowing capacity under the borrowing facility for letters of credit. + References No definition available. + Details
Name: | asgn_LetterOfCreditMaximumBorrowingCapacity
Namespace Prefix: | asgn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The leverage ratio as defined in the credit agreement. + References No definition available. + Details
Name: | asgn_LeverageRatio
Namespace Prefix: | asgn_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line of Credit Facility, Increase in Additional Principal Amount + References No definition available. + Details
Name: | asgn_LineOfCreditFacilityIncreaseInAdditionalPrincipalAmount
Namespace Prefix: | asgn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentDescriptionOfVariableRateBasis
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 21 -Paragraph 16, 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Description of the frequency of periodic payments (monthly, quarterly, annual). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentFrequencyOfPeriodicPayment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of the required periodic payments including both interest and principal payments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentPeriodicPayment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
Name: | us-gaap_SecuredDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant