XML 74 R61.htm IDEA: XBRL DOCUMENT v3.22.0.1

Leases - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lease cost	$ 135.3	$ 121.8	$ 120.7
Lessee, Operating lease liability, Lease not yet commenced, Payments due	82.0
Selling and Marketing Expense [Member]
Lease cost	124.3	110.2	109.1
General and Administrative Expense [Member]
Lease cost	$ 11.0	$ 11.6	$ 11.6

X

- Definition

LesseeOperatingLeaseLiabilityLeaseNotYetCommencedPaymentsDue.

+ References

No definition available.

+ Details

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

X

- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971

+ Details

Name:	us-gaap_LeaseCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_SellingAndMarketingExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: