XML 59 R47.htm IDEA: XBRL DOCUMENT v3.10.0.1

Warehouse Receivables & Warehouse Lines of Credit - Summary of Warehouse Lines of Credit in Place (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017	Sep. 21, 2018	Aug. 18, 2018	Jul. 31, 2018	Jul. 02, 2018	Feb. 01, 2018	Jan. 27, 2018	Jan. 09, 2018
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Carrying Value	$ 1,579,740,000	$ 910,766,000
Warehouse Agreement Borrowings [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Maximum Facility Size	2,300,000,000	3,000,000,000
Carrying Value	$ 1,579,740,000	910,766,000
Warehouse Agreement Borrowings [Member] | JP Morgan [Member] | Pricing at daily one-month LIBOR plus 1.45%, maturing October 23, 2018 [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Current Maturity	Oct. 23, 2018
Maximum Facility Size	$ 1,000,000,000	1,000,000,000
Carrying Value	$ 870,446,000	$ 192,180,000
Line of credit over LIBOR rate	1.45%	1.45%
Warehouse Agreement Borrowings [Member] | JP Morgan [Member] | Pricing at daily one-month LIBOR plus 2.75%, maturing October 23, 2018 [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Current Maturity	Oct. 23, 2018
Maximum Facility Size	$ 25,000,000	$ 25,000,000
Carrying Value		$ 5,800,000
Line of credit over LIBOR rate	2.75%	2.75%
Warehouse Agreement Borrowings [Member] | Fannie Mae ASAP Program [Member] | Pricing at daily one-month LIBOR plus 1.35%, with a LIBOR floor of 0.35%, Cancelable anytime [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Current Maturity	Cancelable anytime
Maximum Facility Size	$ 450,000,000	$ 450,000,000
Carrying Value	$ 34,655,000	$ 205,827,000
Line of credit over LIBOR rate	1.35%	1.35%
Line of credit, LIBOR floor rate	0.35%	0.35%
Warehouse Agreement Borrowings [Member] | TD Bank [Member] | Pricing at daily one-month LIBOR plus 1.20%, maturing June 30, 2019 [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Current Maturity	Jun. 30, 2019
Maximum Facility Size	$ 400,000,000	$ 800,000,000	$ 625,000,000		$ 800,000,000		$ 400,000,000
Carrying Value	$ 296,487,000	$ 225,416,000
Line of credit over LIBOR rate	1.20%	1.20%
Warehouse Agreement Borrowings [Member] | Bank of America (BofA) [Member] | Pricing at daily one-month LIBOR plus 1.30%, maturing June 4, 2019 [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Current Maturity	Jun. 04, 2019
Maximum Facility Size	$ 225,000,000	$ 337,500,000		$ 225,000,000		$ 337,500,000		$ 225,000,000
Carrying Value	$ 220,348,000	$ 130,443,000
Line of credit over LIBOR rate	1.30%	1.30%
Warehouse Agreement Borrowings [Member] | Capital One [Member] | Pricing at daily one-month LIBOR plus 1.35%, maturing July 27, 2019 [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Current Maturity	Jul. 27, 2019
Maximum Facility Size	$ 200,000,000	$ 387,500,000	$ 200,000,000		$ 375,000,000				$ 200,000,000
Carrying Value	$ 157,804,000	$ 151,100,000
Line of credit over LIBOR rate	1.35%	1.35%

X

- Definition

Line of credit facility expiration term.

+ References

No definition available.

+ Details

Name:	cbg_LineOfCreditFacilityExpirationTerm
Namespace Prefix:	cbg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This element represents the minimum amount for the debt instrument's basis spread over the variable interest rate on a debt instrument.

+ References

No definition available.

+ Details

Name:	cbg_LineOfCreditLondonInterBankOfferRateFloor
Namespace Prefix:	cbg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Warehouse receivables and warehouse lines of credit.

+ References

No definition available.

+ Details

Name:	cbg_WarehouseReceivablesAndWarehouseLinesOfCreditLineItems
Namespace Prefix:	cbg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
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://fasb.org/us-gaap/role/ref/legacyRef
-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

+ Details

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

X

- Definition

Carrying value as of the balance sheet date of the outstanding short-term borrowings under a revolving line of credit used by mortgage bankers to finance the origination or purchase of loans.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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

X

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_WarehouseAgreementBorrowingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=cbg_JPMorganMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=cbg_WarehouseLineOfCreditOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=cbg_WarehouseLineOfCreditTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=cbg_FannieMaeASAPProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=cbg_WarehouseLineOfCreditThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=cbg_TDBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=cbg_WarehouseLineOfCreditFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=cbg_BankOfAmericaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=cbg_WarehouseLineOfCreditFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=cbg_CapitalOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=cbg_WarehouseLineOfCreditSixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: