No definition available.

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- Definition

Line of Credit Facility, Additional Borrowing Capacity

+ References

No definition available.

+ Details

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Namespace Prefix:	comp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Additional Borrowing Capacity Percentage Threshold To Assets

+ References

No definition available.

+ Details

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Namespace Prefix:	comp_
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Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Expiration Month And Year

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Line of credit facility maximum borrowing capacity sublimit.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Minimum Liquidity

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Net leverage ratio

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Description of any adjustments made to the stated rate to determine the effective rate.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
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- Definition

Amount, before accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Identification of whether the entity has been in compliance with any credit facility debt covenants during the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

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Namespace Prefix:	us-gaap_
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Debt - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended
	Jul. 31, 2020	Mar. 31, 2021	Dec. 31, 2020
Concierge Revolving Credit Facility [Member]
Debt [Line Items]
Maximum borrowing capacity	$ 75.0
Interest rate basis	3.00
Unused capacity commitment fee percentage	0.50%
Line of credit facility expiration month and year		2022
Debt instrument interest rate	3.22%
Line of credit		$ 10.2	$ 8.4
Covenant compliance		the Company was in compliance with the covenants under the Concierge Facility.
Debt issuance costs		$ 1.4
Revolving Credit Facility [Member]
Debt [Line Items]
Maximum borrowing capacity		$ 350.0
Interest rate basis		1.00
Unused capacity commitment fee percentage		0.175%
Line of credit facility expiration month and year		2026
Additional borrowing capacity		$ 250.0
Additional borrowing capacity percentage threshold to assets		18.50%
Net leverage ratio		4.50
Letters of credit		$ 125.0
Minimum liquidity		$ 150.0
Revolving Credit Facility [Member] \| Other Current Assets [Member]
Debt [Line Items]
Covenant compliance		the Company was in compliance with the covenants under the Revolving Credit Facility.
Debt issuance costs		$ 1.4
Revolving Credit Facility [Member] \| Base Rate [Member]
Debt [Line Items]
Interest rate basis		0.50
Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt [Line Items]
Interest rate basis		1.50
Revolving Credit Facility [Member] \| Federal Funds Effective Swap Rate [Member]
Debt [Line Items]
Interest rate basis		0.50
Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) Swap Rate [Member]
Debt [Line Items]
Interest rate basis		1.00
Revolving Credit Facility [Member] \| Debt Default Interest Rate [Member]
Debt [Line Items]
Interest rate basis		2.0