CBRE (CBRE) 10-K 1 Mar 19 2018 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2018	Feb. 14, 2019	Jun. 29, 2018
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	FY
Trading Symbol	CBG
Entity Registrant Name	CBRE GROUP, INC.
Entity Central Index Key	1,138,118
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		335,834,731
Entity Public Float			$ 16.2

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 777,219	$ 751,774
Restricted cash	86,725	73,045
Receivables, less allowance for doubtful accounts of $60,348 and $46,789 at December 31, 2018 and 2017, respectively	3,668,591	3,112,289
Warehouse receivables	1,342,468	928,038
Contract assets	307,020	273,053
Prepaid expenses	254,892	215,336
Income taxes receivable	71,684	49,628
Other current assets	245,611	227,421
Total Current Assets	6,754,210	5,630,584
Property and equipment, net	721,692	617,739
Goodwill	3,652,309	3,254,740
Other intangible assets, net of accumulated amortization of $1,180,393 and $1,000,738 at December 31, 2018 and 2017, respectively	1,441,308	1,399,112
Investments in unconsolidated subsidiaries	216,174	238,001
Deferred tax assets, net	51,703	98,746
Other assets, net	619,397	479,474
Total Assets	13,456,793	11,718,396
Current Liabilities:
Accounts payable and accrued expenses	1,919,827	1,573,672
Accrued bonus and profit sharing	1,189,395	1,078,345
Compensation and employee benefits payable	1,121,179	904,434
Contract liabilities	82,227	100,615
Income taxes payable	68,100	70,634
Short-term borrowings:
Warehouse lines of credit (which fund loans that U.S. Government Sponsored Enterprises have committed to purchase)	1,328,761	910,766
Other		16
Total short-term borrowings	1,328,761	910,782
Current maturities of long-term debt	3,146	8
Other current liabilities	90,745	74,454
Total Current Liabilities	5,803,380	4,712,944
Long-term debt, net of current maturities	1,767,260	1,999,603
Non-current tax liabilities	172,626	140,792
Deferred tax liabilities, net	107,425	147,218
Other liabilities	596,200	543,225
Total Liabilities	8,446,891	7,543,782
Commitments and contingencies
CBRE Group, Inc. Stockholders’ Equity:
Class A common stock; $0.01 par value; 525,000,000 shares authorized; 336,912,783 and 339,459,138 shares issued and outstanding at December 31, 2018 and 2017, respectively	3,369	3,395
Additional paid-in capital	1,149,013	1,220,508
Accumulated earnings	4,504,684	3,443,007
Accumulated other comprehensive loss	(718,269)	(552,414)
Total CBRE Group, Inc. Stockholders’ Equity	4,938,797	4,114,496
Non-controlling interests	71,105	60,118
Total Equity	5,009,902	4,174,614
Total Liabilities and Equity	$ 13,456,793	$ 11,718,396

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
Receivables, allowance for doubtful accounts	$ 60,348	$ 46,789
Other intangible assets, accumulated amortization	$ 1,180,393	$ 1,000,738
Class A common stock, par value	$ 0.01	$ 0.01
Class A common stock, shares authorized	525,000,000	525,000,000
Class A common stock, shares issued	336,912,783	339,459,138
Class A common stock, shares outstanding	336,912,783	339,459,138

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Revenue	$ 21,340,088	$ 18,628,787	$ 17,369,108
Costs and expenses:
Cost of services	16,449,212	14,305,099	13,420,911
Operating, administrative and other	3,365,773	2,858,720	2,780,301
Depreciation and amortization	451,988	406,114	366,927
Total costs and expenses	20,266,973	17,569,933	16,568,139
Gain on disposition of real estate	14,874	19,828	15,862
Operating income	1,087,989	1,078,682	816,831
Equity income from unconsolidated subsidiaries	324,664	210,207	197,351
Other income	93,020	9,405	4,688
Interest income	8,585	9,853	8,051
Interest expense	107,270	136,814	144,851
Write-off of financing costs on extinguished debt	27,982
Income before provision for income taxes	1,379,006	1,171,333	882,070
Provision for income taxes	313,058	467,757	296,900
Net income	1,065,948	703,576	585,170
Less: Net income attributable to non-controlling interests	2,729	6,467	12,091
Net income attributable to CBRE Group, Inc.	$ 1,063,219	$ 697,109	$ 573,079
Basic income per share:
Net income per share attributable to CBRE Group, Inc.	$ 3.13	$ 2.06	$ 1.71
Weighted average shares outstanding for basic income per share	339,321,056	337,658,017	335,414,831
Diluted income per share:
Net income per share attributable to CBRE Group, Inc.	$ 3.10	$ 2.05	$ 1.69
Weighted average shares outstanding for diluted income per share	343,122,741	340,783,556	338,424,563

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income	$ 1,065,948	$ 703,576	$ 585,170
Other comprehensive (loss) income:
Foreign currency translation (loss) gain	(161,384)	218,001	(235,614)
Amounts reclassified from accumulated other comprehensive loss to interest expense, net of $876, $3,066 and $4,443 income tax expense for the years ended December 31, 2018, 2017 and 2016, respectively	2,439	4,964	6,839
Unrealized gains (losses) on interest rate swaps, net of $254 and $362 income tax expense and $929 income tax benefit for the years ended December 31, 2018, 2017 and 2016, respectively	708	585	(1,431)
Unrealized holding (losses) gains on available for sale debt securities, net of $349 income tax benefit and $1,685 and $250 income tax expense for the years ended December 31, 2018, 2017 and 2016, respectively	(971)	2,737	384
Pension liability adjustments, net of $269 and $2,601 income tax expense and $13,057 income tax benefit for the years ended December 31, 2018, 2017 and 2016, respectively	1,315	12,701	(63,749)
Other, net of $3,550 income tax benefit, $342 income tax expense and $3,705 income tax benefit for the years ended December 31, 2018, 2017 and 2016, respectively	(5,070)	364	(12,091)
Total other comprehensive (loss) income	(166,927)	239,352	(305,662)
Comprehensive income	899,021	942,928	279,508
Less: Comprehensive income attributable to non-controlling interests	1,657	6,879	12,108
Comprehensive income attributable to CBRE Group, Inc.	897,364	$ 936,049	$ 267,400
Accounting Standards Update 2016-01
Other comprehensive (loss) income:
Adoption of Accounting Standards Update 2016-01, net of $2,141 income tax benefit for the year ended December 31, 2018	$ (3,964)

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Amounts reclassified from accumulated other comprehensive loss to interest expense, income tax expense	$ 876	$ 3,066	$ 4,443
Unrealized (losses) gains on interest rate swaps and interest rate caps, income tax expense (benefit)	254	362	(929)
Unrealized holding (losses) gains on available for sale securities, income tax expense (benefit)	(349)	1,685	250
Pension liability adjustments, income tax expense (benefit)	269	2,601	(13,057)
Other, income tax expense (benefit)	(3,550)	$ 342	$ (3,705)
Accounting Standards Update 2016-01
Adoption of Accounting Standards Update 2016-01, income tax benefit	$ (2,141)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,065,948	$ 703,576	$ 585,170
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	451,988	406,114	366,927
Amortization and write-off of financing costs on extinguished debt	35,175	10,783	10,935
Gains related to mortgage servicing rights, premiums on loan sales and sales of other assets	(229,376)	(200,386)	(201,362)
Gain associated with remeasuring our investment in a previously unconsolidated subsidiary to fair value as of the date we acquired the remaining interest	(100,420)
Gains on disposition of real estate held for investment	(3,197)		(9,901)
Net realized and unrealized losses (gains) from investments	7,400	(9,405)	(4,688)
Equity income from unconsolidated subsidiaries	(324,664)	(210,207)	(197,351)
Provision for doubtful accounts	19,760	8,044	4,711
Deferred income taxes	(11,401)	(7,161)	(9,403)
Compensation expense for equity awards	128,171	93,087	63,484
Proceeds from sale of mortgage loans	20,230,676	18,052,756	15,833,633
Origination of mortgage loans	(20,591,602)	(17,655,104)	(15,297,471)
Increase (decrease) in warehouse lines of credit	417,995	(343,887)	(496,128)
Distribution of earnings from unconsolidated subsidiaries	336,925	211,855	195,702
Tenant concessions received	38,400	19,337	22,547
Purchase of equity securities	(99,789)	(110,570)	(87,765)
Proceeds from sale of equity securities	75,120	68,547	105,866
Proceeds from securities sold, not yet purchased	12,721	13,320	17,932
Securities purchased to cover short sales	(12,530)	(13,840)	(19,017)
Increase in receivables, prepaid expenses and other assets (including contract assets)	(777,630)	(540,117)	(336,342)
Increase in accounts payable and accrued expenses and other liabilities (including contract liabilities)	273,782	159,145	15,382
Increase in compensation and employee benefits payable and accrued bonus and profit sharing	270,371	148,714	123,653
(Increase) decrease in net income taxes receivable/payable	(47,074)	108,151	(6,334)
Other operating activities, net	(35,500)	(18,341)	(63,195)
Net cash provided by operating activities	1,131,249	894,411	616,985
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(227,803)	(178,042)	(191,205)
Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired	(322,573)	(118,427)	(21,077)
Contributions to unconsolidated subsidiaries	(62,802)	(68,700)	(66,816)
Distributions from unconsolidated subsidiaries	61,709	63,664	46,775
Net proceeds from disposition of real estate held for investment	14,174		44,326
Purchase of equity securities	(21,402)	(15,584)	(15,506)
Proceeds from sale of equity securities	16,314	15,587	16,954
Purchase of available for sale debt securities	(23,360)	(19,280)	(22,155)
Proceeds from the sale of available for sale debt securities	5,792	15,790	18,097
Other investing activities, net	(733)	2,392	40,083
Net cash used in investing activities	(560,684)	(302,600)	(150,524)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from senior term loans	1,002,745	200,000
Repayment of senior term loans	(450,000)	(751,876)	(136,250)
Proceeds from revolving credit facility	3,258,000	1,521,000	2,909,000
Repayment of revolving credit facility	(3,258,000)	(1,521,000)	(2,909,000)
Repayment of 5.00% senior notes (including premium)	(820,000)
Proceeds from notes payable on real estate	7,599	4,333	25,001
Repayment of notes payable on real estate	(19,058)	(12,556)	(38,046)
Repayment of debt assumed in acquisition of FacilitySource	(26,295)
Repurchase of common stock	(161,034)
Acquisition of businesses (cash paid for acquisitions more than three months after purchase date)	(18,660)	(24,006)	(21,034)
Units repurchased for payment of taxes on equity awards	(29,386)	(29,549)	(27,426)
Non-controlling interest contributions	25,355	5,301	2,272
Non-controlling interest distributions	(13,413)	(8,715)	(19,133)
Payment of financing costs	(2,088)	(7,999)	(5,618)
Other financing activities, net	(2,365)	(2,675)	(443)
Net cash used in financing activities	(506,600)	(627,742)	(220,677)
Effect of currency exchange rate changes on cash and cash equivalents and restricted cash	(24,840)	29,338	(27,539)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	39,125	(6,593)	218,245
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD	824,819	831,412	613,167
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD	863,944	824,819	831,412
Cash paid during the period for:
Interest	104,165	117,164	125,800
Income taxes, net	$ 375,849	$ 356,997	$ 294,848

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parenthetical)	Dec. 31, 2018	Dec. 31, 2017
5.00% Senior Notes [Member]
Debt Instrument Interest Rate Stated Percentage	5.00%	5.00%

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Class A Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Earnings [Member]	Minimum Pension Liability [Member]	Foreign Currency Translation and Other [Member]	Non-controlling Interests [Member]
Beginning balance at Dec. 31, 2015	$ 2,759,070	$ 3,342	$ 1,106,758	$ 2,088,227	$ (101,921)	$ (383,754)	$ 46,418
Beginning balance (in shares) at Dec. 31, 2015	334,230,496
Adoption of Accounting Standards Update, net of tax | Adoption of New Revenue Recognition Guidance, Accounting Standards Update 2014-09 [Member]	$ 87,885			87,885
Adoption of Accounting Standards Update, net of tax | Accounting Standards Update 2016-09 [Member]	1,681		4,975	(3,294)
Net income (As Adjusted)	585,170			573,079			12,091
Pension liability adjustments, net of tax	(63,749)				(63,749)
Stock options exercised	$ 915	1	914
Stock options exercised (in shares)	89,727
Restricted stock awards vesting		30	(30)
Restricted stock awards vesting (in shares)	2,955,142
Compensation expense for equity awards	$ 63,484		63,484
Units repurchased for payment of taxes on equity awards	$ (27,426)		(27,426)
Repurchase of common stock (in Shares)	0
Amounts reclassified from accumulated other comprehensive loss to interest expense, net of tax	$ 6,839					6,839
Unrealized (losses) gains on interest rate swaps, net of tax	(1,431)					(1,431)
Unrealized holding gains (losses) on available for sale debt securities, net of tax	384					384
Foreign currency translation (loss) gain (As Adjusted)	(235,614)					(235,631)	17
Contributions from non-controlling interests	2,272						2,272
Distributions to non-controlling interests	(19,133)						(19,133)
Other	$ (14,447)		(3,449)			(12,091)	1,093
Other (in shares)	4,084
Ending balance at Dec. 31, 2016	$ 3,145,900	3,373	1,145,226	2,745,897	(165,670)	(625,684)	42,758
Ending balance (in shares) at Dec. 31, 2016	337,279,449
Net income (As Adjusted)	$ 703,576			697,109			6,467
Pension liability adjustments, net of tax	12,701				12,701
Non-cash issuance of common stock related to acquisition	$ 11,693	5	11,688
Non-cash issuance of common stock related to acquisition (in shares)	495,828
Restricted stock awards vesting		17	(17)
Restricted stock awards vesting (in shares)	1,660,269
Compensation expense for equity awards	$ 93,087		93,087
Units repurchased for payment of taxes on equity awards	$ (29,549)		(29,549)
Repurchase of common stock (in Shares)	0
Amounts reclassified from accumulated other comprehensive loss to interest expense, net of tax	$ 4,964					4,964
Unrealized (losses) gains on interest rate swaps, net of tax	585					585
Unrealized holding gains (losses) on available for sale debt securities, net of tax	2,737					2,737
Foreign currency translation (loss) gain (As Adjusted)	218,001					217,589	412
Contributions from non-controlling interests	5,301						5,301
Distributions to non-controlling interests	(8,715)						(8,715)
Acquisition of non- controlling interests	12,671						12,671
Other	$ 1,662		73	1		364	1,224
Other (in shares)	23,592
Ending balance at Dec. 31, 2017	$ 4,174,614	3,395	1,220,508	3,443,007	(152,969)	(399,445)	60,118
Ending balance (in shares) at Dec. 31, 2017	339,459,138
Adoption of Accounting Standards Update, net of tax | Accounting Standards Update 2016-01 [Member]	$ (3,964)			3,964		(3,964)
Net income (As Adjusted)	1,065,948			1,063,219			2,729
Pension liability adjustments, net of tax	$ 1,315				1,315
Restricted stock awards vesting		14	(14)
Restricted stock awards vesting (in shares)	1,424,462
Compensation expense for equity awards	$ 128,171		128,171
Reclassification of stock incentive plan award from an equity award to a liability award	(9,074)		(9,074)
Units repurchased for payment of taxes on equity awards	(29,386)		(29,386)
Repurchase of common stock	$ (161,034)	(40)	(160,994)
Repurchase of common stock (in Shares)	(3,980,656)
Amounts reclassified from accumulated other comprehensive loss to interest expense, net of tax	$ 2,439					2,439
Unrealized (losses) gains on interest rate swaps, net of tax	708					708
Unrealized holding gains (losses) on available for sale debt securities, net of tax	(971)					(971)
Foreign currency translation (loss) gain (As Adjusted)	(161,384)					(160,312)	(1,072)
Contributions from non-controlling interests	25,355						25,355
Distributions to non-controlling interests	(13,413)						(13,413)
Other	$ (13,386)		(198)	(5,506)	3,747	(8,817)	(2,612)
Other (in shares)	9,839
Ending balance at Dec. 31, 2018	$ 5,009,902	$ 3,369	$ 1,149,013	$ 4,504,684	$ (147,907)	$ (570,362)	$ 71,105
Ending balance (in shares) at Dec. 31, 2018	336,912,783

Nature of Operations

Nature of Operations	12 Months Ended
	Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Nature of Operations	1. Nature of Operations CBRE Group, Inc., a Delaware corporation (which may be referred to in these financial statements as the “company”, “we”, “us” and “our”), was incorporated on February 20, 2001. We are the world’s largest commercial real estate services and investment firm, based on 2018 revenue, with leading global market positions in our leasing, property sales, occupier outsourcing and valuation businesses. Our business is focused on providing services to both occupiers of and investors in real estate. For occupiers, we provide facilities management, project management, transaction (both property sales and leasing) and consulting services, among others. For investors, we provide capital markets (property sales, commercial mortgage brokerage, loan origination and servicing), leasing, investment management, property management, valuation and development services, among others. We generate revenue from both management fees (large multi-year portfolio and per-project contracts) and commissions on transactions. As of December 31, 2018, we operated in more than 480 offices worldwide with over 90,000 employees, excluding independent affiliates, providing commercial real estate services under the “CBRE” brand name, investment management services under the “CBRE Global Investors” brand name and development services under the “Trammell Crow Company” brand name.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Significant Accounting Policies	2. Significant Accounting Policies Principles of Consolidation The accompanying consolidated financial statements include our accounts and those of our consolidated subsidiaries, which are comprised of variable interest entities in which we are the primary beneficiary and voting interest entities, in which we determined we have a controlling financial interest, under the “ Consolidations Variable Interest Entities (VIEs) We determine whether an entity is a VIE and, if so, whether it should be consolidated by utilizing judgments and estimates that are inherently subjective. Our determination of whether an entity in which we hold a direct or indirect variable interest is a VIE is based on several factors, including whether the entity’s total equity investment at risk upon inception is sufficient to finance the entity’s activities without additional subordinated financial support. We make judgments regarding the sufficiency of the equity at risk based first on a qualitative analysis, and then a quantitative analysis, if necessary. We analyze any investments in VIEs to determine if we are the primary beneficiary. In evaluating whether we are the primary beneficiary, we evaluate our direct and indirect economic interests in the entity. A reporting entity is determined to be the primary beneficiary if it holds a controlling financial interest in the VIE. Determining which reporting entity, if any, has a controlling financial interest in a VIE is primarily a qualitative approach focused on identifying which reporting entity has both (1) the power to direct the activities of a VIE that most significantly impact such entity’s economic performance and (2) the obligation to absorb losses or the right to receive benefits from such entity that could potentially be significant to such entity. Performance of that analysis requires the exercise of judgment. We consider a variety of factors in identifying the entity that holds the power to direct matters that most significantly impact the VIE’s economic performance including, but not limited to, the ability to direct financing, leasing, construction and other operating decisions and activities. In addition, we consider the rights of other investors to participate in those decisions, to replace the manager and to sell or liquidate the entity. We determine whether we are the primary beneficiary of a VIE at the time we become involved with a variable interest entity and reconsider that conclusion continually. We consolidate any VIE of which we are the primary beneficiary and disclose significant VIEs of which we are not the primary beneficiary, if any, as well as disclose our maximum exposure to loss related to VIEs that are not consolidated (see Note 6). Voting Interest Entities (VOEs) For VOEs, we consolidate the entity if we have a controlling financial interest. We have a controlling financial interest in a VOE if (i) for legal entities other than limited partnerships, we own a majority voting interest in the VOE or, for limited partnerships and similar entities, we own a majority of the entity’s kick-out rights through voting limited partnership interests and (ii) non-controlling shareholders or partners do not hold substantive participating rights and no other conditions exist that would indicate that we do not control the entity. Other Investments Our investments in unconsolidated subsidiaries in which we have the ability to exercise significant influence over operating and financial policies, but do not control, or entities which are variable interest entities in which we are not the primary beneficiary are accounted for under the equity method. We eliminate transactions with such equity method subsidiaries to the extent of our ownership in such subsidiaries. Accordingly, our share of the earnings from these equity-method basis companies is included in consolidated net income. All other investments held on a long-term basis are valued at cost less any impairment in value. Marketable Securities We account for investments in marketable debt securities in accordance with the “ Investments – Debt and Equity Securities As described in the “New Accounting Pronouncements” footnote 3, we adopted ASU 2016-01, “ Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities Impairment Evaluation Impairment losses are recognized upon evidence of other-than-temporary losses of value. When testing for impairment on investments that are not actively traded on a public market, we generally use a discounted cash flow approach to estimate the fair value of our investments and/or look to comparable activities in the marketplace. Management’s judgment is required in developing the assumptions for the discounted cash flow approach. These assumptions include net asset values, internal rates of return, discount and capitalization rates, interest rates and financing terms, rental rates, timing of leasing activity, estimates of lease terms and related concessions, etc. When determining if impairment is other-than-temporary, we also look to the length of time and the extent to which fair value has been less than cost as well as the financial condition and near-term prospects of each investment. Based on our review, we did not record any significant other-than-temporary impairment losses during the years ending December 31, 2018, 2017 and 2016. Use of Estimates Our consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (U.S.), or GAAP, which require management to make estimates and assumptions about future events. These estimates and assumptions affect the amounts of assets, liabilities, revenue and expenses we report. Such estimates include the value of goodwill, intangibles and other long-lived assets, accounts receivable, investments in unconsolidated subsidiaries and assumptions used in the calculation of income taxes, retirement and other post-employment benefits, among others. These estimates and assumptions are based on management’s best judgment, and are evaluated on an ongoing basis and adjusted, as needed, using historical experience and other factors, including consideration of the macroeconomic environment. As future events and their effects cannot be forecast with precision, actual results could differ significantly from these estimates. Changes in estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods. Cash and Cash Equivalents Cash and cash equivalents generally consist of cash and highly liquid investments with an original maturity of three months or less. Included in the accompanying consolidated balance sheets as of December 31, 2018 and 2017 is cash and cash equivalents of $155.2 million and $123.8 million, respectively, from consolidated funds and other entities, which are not available for general corporate use. We also manage certain cash and cash equivalents as an agent for our investment and property and facilities management clients. These amounts are not included in the accompanying consolidated balance sheets (see Fiduciary Funds Restricted Cash Included in the accompanying consolidated balance sheets as of December 31, 2018 and 2017 is restricted cash of $86.7 million and $73.0 million, respectively. The balances primarily include restricted cash set aside to cover funding obligations as required by contracts executed by us in the ordinary course of business. Fiduciary Funds The accompanying consolidated balance sheets do not include the net assets of escrow, agency and fiduciary funds, which are held by us on behalf of clients and which amounted to $5.9 billion and $4.0 billion at December 31, 2018 and 2017, respectively. Concentration of Credit Risk Financial instruments that potentially subject us to credit risk consist principally of trade receivables and interest-bearing investments. Users of real estate services account for a substantial portion of trade receivables and collateral is generally not required. The risk associated with this concentration is limited due to the large number of users and their geographic dispersion. We place substantially all of our interest-bearing investments with several major financial institutions to limit the amount of credit exposure with any one financial institution. Property and Equipment Property and equipment, which includes leasehold improvements, is stated at cost, net of accumulated depreciation. Depreciation and amortization of property and equipment is computed primarily using the straight-line method over estimated useful lives ranging up to 10 years. Leasehold improvements are amortized over the term of their associated leases, excluding options to renew, since such leases generally do not carry prohibitive penalties for non-renewal. We capitalize expenditures that significantly increase the life of our assets and expense the costs of maintenance and repairs. We review property and equipment for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If this review indicates that such assets are considered to be impaired, the impairment is recognized in the period the changes occur and represents the amount by which the carrying value exceeds the fair value of the asset. Certain costs related to the development or purchase of internal-use software are capitalized. Internal-use software costs that are incurred in the preliminary project stage are expensed as incurred. Significant direct consulting costs and certain payroll and related costs, which are incurred during the development stage of a project are generally capitalized and amortized over a three-year period (except for enterprise software development platforms, which range from three to seven years) when placed into production. Goodwill and Other Intangible Assets Our acquisitions require the application of purchase accounting, which results in tangible and identifiable intangible assets and liabilities of the acquired entity being recorded at fair value. The difference between the purchase price and the fair value of net assets acquired is recorded as goodwill. The majority of our goodwill balance has resulted from our acquisition of CBRE Services, Inc. (CBRE Services) in 2001 (the 2001 Acquisition), our acquisition of Insignia Financial Group, Inc. (Insignia) in 2003 (the Insignia Acquisition), our acquisition of the Trammell Crow Company in 2006 (the Trammell Crow Company Acquisition), our acquisition of substantially all of the ING Group N.V. (ING) Real Estate Investment Management (REIM) operations in Europe and Asia, as well as substantially all of Clarion Real Estate Securities (CRES) in 2011 (collectively referred to as the REIM Acquisitions), our acquisition of Norland Managed Services Ltd (Norland) in 2013 (the Norland Acquisition), our acquisition of Johnson Controls, Inc. (JCI)’s Global Workplace Solutions (JCI-GWS) business in 2015 and our acquisition of FacilitySource Holdings, LLC (FacilitySource) in 2018 We are required to test goodwill and other intangible assets deemed to have indefinite useful lives for impairment at least annually, or more often if circumstances or events indicate a change in the impairment status, in accordance with ASC Topic 350, “ Intangibles – Goodwill and Other Deferred Financing Costs Costs incurred in connection with financing activities are generally deferred and amortized over the terms of the related debt agreements ranging up to ten years. D ebt issuance costs related to a recognized debt liability are presented in the accompanying consolidated balance sheets as a direct deduction from the carrying amount of that debt liability. Accounting Standards Update (ASU) 2015-15, “Interest—Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements” permits classifying debt issuance costs associated with a line of credit arrangement as an asset, regardless of whether there are any outstanding borrowings on the arrangement. During 2018, we redeemed in full our $800.0 million aggregate outstanding principal amount of 5.00% senior notes. In connection with this early redemption, we incurred costs, including a $20.0 million premium paid and the write-off of $8.0 million of unamortized deferred financing costs, both of which were included in write-off of financing costs on extinguished debt in the accompanying consolidated statements of operations. During 2017, we entered into a new credit agreement providing for a $750.0 million tranche A term loan facility and a $2.8 billion revolving credit facility. During the year ended December 31, 2017, in connection with these financing activities, we incurred approximately $8.0 million of financing costs. On March 21, 2016, we executed an amendment to our 2015 amended and restated credit agreement which, among other things, extended the maturity on our revolving credit facility and increased the borrowing capacity under our revolving credit facility. In connection with this amendment, we incurred approximately $5.4 million of financing costs. See Note 11 for additional information on activities associated with our debt. Revenue Recognition We account for revenue in accordance with ASC Topic 606, “ Revenue from Contracts with Customers Other Assets and Deferred Costs – Contracts with Customers The following is a description of principal activities – separated by reportable segments – from which we generate revenue. For more detailed information about our reportable segments, see Notes 17 and 18. The Americas, Europe, Middle East and Africa (EMEA), and Asia Pacific The Americas segment is our largest segment of operations and provides a comprehensive range of services throughout the U.S., in the largest regions of Canada and in key markets in Latin America. The primary services offered consist of the following: property leasing, property sales, mortgage services, appraisal and valuation, occupier outsourcing and property management services. Our EMEA and Asia Pacific segments generally provide services similar to the Americas business segment. The EMEA segment has operations primarily in Europe, while the Asia Pacific segment has operations in Asia, Australia and New Zealand. Property Leasing and Property Sales We provide strategic advice and execution for owners, investors, and occupiers of real estate in connection with the leasing of office, industrial and retail space. We also offer clients fully integrated property sales services under the CBRE Capital Markets brand. We are compensated for our services in the form of a commission and, in some instances may earn various forms of variable incentive consideration. Our commission is paid upon the occurrence of certain contractual event(s) which may be contingent. For example, a portion of our leasing commission may be paid upon signing of the lease by the tenant, with the remaining paid upon occurrence of another future contingent event (e.g. payment of first month’s rent or tenant move-in). For leases, we typically satisfy our performance obligation at a point in time when control is transferred; generally, at the time of the first contractual event where there is a present right to payment. We look to history, experience with a customer, and deal specific considerations as part of the most likely outcome estimation approach to support our judgement that the second contingency (if applicable) will be met. Therefore, we typically accelerate the recognition of the revenue associated with the second contingent event. For sales, our commission is typically paid at the closing of the sale, which represents transfer of control for services to the customer. In addition to our commission, we may recognize other forms of variable consideration which can include, but are not limited to, commissions subject to concession or claw back and volume based discounts or rebates. We assess variable consideration on a contract by contract basis, and when appropriate, recognize revenue based on our assessment of the outcome (using the most likely outcome approach or weighted probability) and historical results, if comparable and representative. We recognize variable consideration if it is deemed probable that there will not be significant reversal in the future. Mortgage Originations and Loan Sales We offer clients commercial mortgage and structured financing services. Fees from services within our mortgage brokerage business that are in the scope of Topic 606 include fees earned for the brokering of commercial mortgage loans primarily through relationships established with investment banking firms, national and regional banks, credit companies, insurance companies and pension funds. We are compensated for our brokerage services via a fee paid upon successful placement of a commercial mortgage borrower with a lender who will provide financing. The fee earned is contingent upon the funding of the loan, which represents the transfer of control for services to the customer. Therefore, we typically satisfy our performance obligation at the point in time of the funding of the loan. We also earn fees from the origination and sale of commercial mortgage loans for which the company retains the servicing rights. These fees are governed by the “ Fair Value Measurements and Disclosures Transfers and Servicing Valuation Services We provide valuation services that include market-value appraisals, litigation support, discounted cash flow analyses, feasibility studies as well as consulting services such as property condition reports, hotel advisory and environmental consulting. We are compensated for valuation services in the form of a fee, which is payable on the occurrence of certain events (e.g., a portion on the delivery of a draft report with the remaining on the delivery of the final report). For consulting services, we may be paid based on the occurrence of time or event-based milestones (such as the delivery of draft reports). We typically satisfy our performance obligation for valuation services as services are rendered over time. Occupier Outsourcing Services We provide a broad suite of services to occupiers of real estate, including facilities management, project management, transaction management and strategic consulting. Facilities management involves the day-to-day management of client-occupied space and includes headquarter buildings, regional offices, administrative offices, data centers and other critical facilities, manufacturing and laboratory facilities, distribution facilities and retail space. Contracts for facilities management services are often structured so we are reimbursed for client-dedicated personnel costs and subcontracted vendor costs as well as associated overhead expenses plus a monthly fee, and, in some cases, annual incentives tied to agreed-upon performance targets, with any penalties typically capped. In addition, we have contracts for facilities management services based on fixed fees or guaranteed maximum prices. Fixed fee contracts are typically structured where an agreed upon scope of work is delivered for a fixed price while guaranteed maximum price contracts are structured with an agreed upon scope of work that will be provided to the client for a not to exceed price. Facilities management services represent a series of distinct daily services rendered over time. Consistent with the transfer of control for distinct, daily services to the customer, revenue is typically recognized at the end of each period for the fees associated with the services performed. Project management services are often provided on a portfolio wide or programmatic basis. Revenues from project management services generally includes fixed management fees, variable fees, and incentive fees if certain agreed-upon performance targets are met. Revenues from project management may also include reimbursement of payroll and related costs for personnel providing the services and subcontracted vendor costs. Project management services represent a series of distinct daily services rendered over time. Consistent with the transfer of control for distinct, daily services to the customer, revenue is typically recognized at the end of each period for the fees associated with the services performed. The amount of revenue recognized is presented gross for any services provided by our employees, as we control them. This is evidenced by our obligation for their performance and our ability to direct and redirect their work, as well as negotiate the value of such services. The amount of revenue recognized related to the majority of facilities management contracts and certain project management arrangements is presented gross (with offsetting expense recorded in cost of services) for reimbursements of costs of third-party services because we control those services that are delivered to the client. In the instances when we do not control third-party services delivered to the client, we report revenues net of the third-party reimbursements. In addition to our management fee, we receive various types of variable consideration which can include, but is not limited to; key performance indicator bonuses or penalties which may be linked to subcontractor performance, gross maximum price, glidepaths, savings guarantees, shared savings, or fixed fee structures. We assess variable consideration on a contract by contract basis, and when appropriate, recognize revenue based on our assessment of the outcome (using the most likely outcome approach or weighted probability) and historical results, if comparable and representative. Using management assessment, historical results and statistics, we recognize revenue if it is deemed probable there will not be significant reversal in the future. Property Management Services We provide property management services on a contractual basis for owners of and investors in office, industrial and retail properties. These services include construction management, marketing, building engineering, accounting and financial services. We are compensated for our services through a monthly management fee earned based on either a specified percentage of the monthly rental income, rental receipts generated from the property under management or a fixed fee. We are also often reimbursed for our administrative and payroll costs directly attributable to the properties under management. Property management services represent a series of distinct daily services rendered over time. Consistent with the transfer of control for distinct, daily services to the customer, revenue is recognized at the end of each period for the fees associated with the services performed. The amount of revenue recognized is presented gross for any services provided by our employees, as we control them. We generally do not control third-party services delivered to property management clients. As such, we report revenues net of third-party reimbursements. Global Investment Management Our Global Investment Management business segment provides investment management services to pension funds, insurance companies, sovereign wealth funds, foundations, endowments and other institutional investors seeking to generate returns and diversification through investment in real estate. We sponsor investment programs that span the risk/return spectrum in: North America, Europe, Asia and Australia. We are typically compensated in the form of a base management fee, disposition fees, acquisition fees and incentive fees in the form of performance fees or carried interest based on fund type (open or closed ended, respectively). For the base management fee, we typically satisfy the performance obligation as service is rendered over time pursuant to the series guidance. Consistent with the transfer of control for distinct, daily services to the customer, revenue is recognized at the end of each period for the fees associated with the services performed. For acquisition and disposition services, we typically satisfy the performance obligation at a point in time (at acquisition or upon disposition). For contracts with contingent fees, including performance fees, incentive fees and carried interest, we assess variable consideration on a contract by contract basis, and when appropriate, recognize revenue based on our assessment of the outcome (using the most likely outcome approach or weighted probability) and historical results, if comparable and representative. Revenue associated with performance fees and carried interest are typically constrained due to volatility in the real estate market, a broad range of possible outcomes, and other factors in the market that are outside of our control. Development Services Our Development Services business segment consists of real estate development and investment activities in the United States to users of and investors in commercial real estate, as well as for our own account. We pursue opportunistic, risk-mitigated development and investment in commercial real estate across a wide spectrum of property types, including: industrial, office and retail properties; healthcare facilities of all types (medical office buildings, hospitals and ambulatory surgery centers); and residential/mixed-use projects. We pursue development and investment activity on behalf of our clients on a fee basis with no, or limited, ownership interest in a property, in partnership with our clients through co-investment – either on an individual project basis or through programs with certain strategic capital partners or for our own account with 100% ownership. Development services represent a series of distinct daily services rendered over time. Consistent with the transfer of control for distinct, daily services to the customer, revenue is recognized at the end of each period for the fees associated with the services performed. Fees are typically payable monthly over the service term or upon contractual defined events, like project milestones. In addition to development fee revenue, we receive various types of variable consideration which can include, but is not limited to, contingent lease-up bonuses, cost saving incentives, profit sharing on sales and at-risk fees. We assess variable consideration on a contract by contract basis, and when appropriate, recognize revenue based on our assessment of the outcome (using the most likely outcome approach or weighted probability) and historical results, if comparable and representative. We accelerate revenue if it is deemed probable there will not be significant reversal in the future. Accounts Receivable and Allowance for Doubtful Accounts We record accounts receivable for our unconditional rights to consideration arising from our performance under contracts with customers. The carrying value of such receivables, net of the allowance for doubtful accounts, represents their estimated net realizable value. We estimate our allowance for doubtful accounts for specific accounts receivable balances based on historical collection trends, the age of outstanding accounts receivables and existing economic conditions associated with the receivables. Past-due accounts receivable balances are written off when our internal collection efforts have been unsuccessful. As a practical expedient, we do not adjust the promised amount of consideration for the effects of a significant financing component when we expect, at contract inception, that the period between our transfer of a promised service to a customer and when the customer pays for that service will be one year or less. We do not typically include extended payment terms in our contracts with customers. Remaining Performance Obligations Remaining performance obligations represent the aggregate transaction prices for contracts where our performance obligations have not yet been satisfied. As of December 31, 2018, the aggregate amount of transaction price allocated to remaining performance obligations in our property leasing business was not significant. We apply the practical expedient related to remaining performance obligations that are part of a contract that has an original expected duration of one year or less and the practical expedient related to variable consideration from remaining performance obligations pursuant to the series guidance. All of our remaining performance obligations apply to one of these practical expedients. Contract Assets and Contract Liabilities Contract assets represent assets for revenue that has been recognized in advance of billing the customer and for which the right to bill is contingent upon something other than the passage of time. This is common for contingent portions of commissions in brokerage and incentive fees present in various businesses. Billing requirements vary by contract but are generally structured around fixed monthly fees, reimbursement of employee and other third-party costs, and the achievement or completion of certain contingent events. When we receive consideration, or such consideration is unconditionally due, from a customer prior to transferring services to the customer under the terms of the services contract, we record deferred revenue, which represents a contract liability. We recognize the contract liability as revenue once we have transferred control of service to the customer and all revenue recognition criteria are met. Contract assets and contract liabilities are determined for each contract on a net basis. For contract assets, we classify the short-term portion as a separate line item within current assets and the long-term portion within other assets, long-term in the accompanying consolidated balance sheets. For contract liabilities, we classify the short-term portion as a separate line item within current liabilities and the long-term portion within other liabilities, long-term in the accompanying consolidated balance sheets. Contract Costs Contract costs primarily consist of upfront costs incurred to obtain or to fulfill a contract. These costs are typically found within our Occupier Outsourcing business line. Such costs relate to transition costs to fulfill contracts prior to services being rendered and are included within other intangible assets in the accompanying consolidated balance sheets. Capitalized transition costs are amortized based on the transfer of services to which the assets relate which can vary on a contract by contract basis, and are included in cost of services in the accompanying consolidated statement of operations. For contract costs that are recognized as assets, we periodically review for impairment. Applying the contract cost practical expedient, we recognize the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets that we otherwise would have recognized is one year or less. Business Promotion and Advertising Costs The costs of business promotion and advertising are expensed as incurred. Business promotion and advertising costs of $74.8 million, $63.1 million and $65.8 million were included in operating, administrative and other expenses for the years ended December 31, 2018, 2017 and 2016, respectively. Foreign Currencies The financial statements of subsidiaries located outside the U.S. are generally measured using the local currency as the functional currency. The assets and liabilities of these subsidiaries are translated at the rates of exchange at the balance sheet date, and income and expenses are translated at the average monthly rate. The resulting translation adjustments are included in the accumulated other comprehensive loss component of equity. Gains and losses resulting from foreign currency transactions are included in the results of operations. Comprehensive Income Comprehensive income consists of net income and other comprehensive (loss) income. In the accompanying consolidated balance sheets, accumulated other comprehensive loss primarily consists of foreign currency translation adjustments, fees associated with the termination of interest rate swaps, unrealized gains (losses) on interest rate swaps, unrealized holding (losses) gains on available for sale debt securities and pension liability adjustments. Foreign currency translation adjustments exclude any income tax effect given that earnings of non-U.S. subsidiaries are deemed to be reinvested for an indefinite period of time (see Note 14). Warehouse Receivables Our wholly-owned subsidiary CBRE Capital Markets, Inc. (CBRE Capital Markets) is a Federal

New Accounting Pronouncements

New Accounting Pronouncements	12 Months Ended
	Dec. 31, 2018
Accounting Changes And Error Corrections [Abstract]
New Accounting Pronouncements	3. New Accounting Pronouncements Recently Adopted Accounting Pronouncements The FASB previously issued five ASUs related to revenue recognition (“new revenue recognition guidance”). The ASUs issued were: (1) in May 2014, ASU 2014‑09, “Revenue from Contracts with Customers (Topic 606);” n March 2016, ASU 2016‑08, “Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net);” (3) in “ Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing;” (4) in “ Revenue from Contracts with Customers (Topic 606): Narrow-scope Improvements and Practical Expedients;” and (5) in December 2016, ASU 2016‑20, “Technical Corrections and Improvements to Topic 606, Revenue From Contracts with Customers.” We evaluated the impact of the updated principal versus agent guidance on our consolidated financial statements. Under former GAAP, certain third-party costs associated with our facilities and project management contracts were accounted for on a net basis because the contracts include provisions such as “pay when paid” that mitigate payment risk with respect to services provided by third parties to our clients. Under the new revenue recognition guidance, control of the services before transfer to the client is the primary factor in determining principal versus agent assessments. Payment risk is no longer a determining factor under Topic 606. We have determined that we control the services provided by third parties on behalf of certain of our facilities and project management clients. Accordingly, under the new guidance, we are accounting for the cost of services provided by third parties and the related reimbursement revenue on a gross basis. The following table presents the effects of the adoption of the new revenue recognition guidance on our consolidated balance sheet as of December 31, 2017 (dollars in thousands): As Reported Adoption of New Revenue Recognition Guidance As Adjusted Receivables $ 3,207,285 $ (94,996 ) $ 3,112,289 Contract assets — 273,053 273,053 Total current assets 5,452,527 178,057 5,630,584 Other assets, net 422,965 56,509 479,474 Total assets 11,483,830 234,566 11,718,396 Accounts payable and accrued expenses 1,674,287 (100,615 ) 1,573,672 Accrued bonus and profit sharing 1,072,976 5,369 1,078,345 Compensation and employee benefits payable 803,504 100,930 904,434 Contract liabilities — 100,615 100,615 Total current liabilities 4,606,645 106,299 4,712,944 Deferred tax liabilities, net 114,017 33,201 147,218 Total liabilities 7,404,282 139,500 7,543,782 Accumulated earnings 3,348,385 94,622 3,443,007 Accumulated other comprehensive loss (552,858 ) 444 (552,414 ) Total CBRE Group, Inc. stockholders' equity 4,019,430 95,066 4,114,496 Total liabilities and equity 11,483,830 234,566 11,718,396 The following tables present the effects of the adoption of the new revenue recognition guidance on our consolidated statements of operations for the years ended December 31, 2017 and 2016 (dollars in thousands, except share amounts): Year Ended December 31, 2017 As Reported Adoption of New Revenue Recognition Guidance As Adjusted Revenue $ 14,209,608 $ 4,419,179 $ 18,628,787 Cost of services 9,893,226 4,411,873 14,305,099 Operating, administrative and other 2,858,654 66 2,858,720 Operating income 1,071,442 7,240 1,078,682 Income before provision for income taxes 1,164,093 7,240 1,171,333 Provision for income taxes 466,147 1,610 467,757 Net income 697,946 5,630 703,576 Net income attributable to CBRE Group, Inc. 691,479 5,630 697,109 Earnings per share: Basic income per share $ 2.05 $ 0.01 $ 2.06 Diluted income per share 2.03 0.02 2.05 Year Ended December 31, 2016 As Reported Adoption of New Revenue Recognition Guidance As Adjusted Revenue $ 13,071,589 $ 4,297,519 $ 17,369,108 Cost of services 9,123,727 4,297,184 13,420,911 Operating, administrative and other 2,781,310 (1,009 ) 2,780,301 Operating income 815,487 1,344 816,831 Income before provision for income taxes 880,726 1,344 882,070 Provision for income taxes 296,662 238 296,900 Net income 584,064 1,106 585,170 Net income attributable to CBRE Group, Inc. 571,973 1,106 573,079 Earnings per share: Basic income per share $ 1.71 $ — $ 1.71 Diluted income per share 1.69 — 1.69 See Note 2 for further discussion of the effects of the adoption of the new revenue recognition guidance on our significant accounting policies. In January 2016, the FASB issued ASU 2016‑01, “Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities.” In August 2016, the FASB issued ASU 2016‑15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments.” • An accounting policy election was made in the first quarter of 2018 to classify distributions from all of our equity method investments based on the • Purchase price payments made related to acquisitions more than three months after the acquisition closed are to be reflected as cash flows from financing activities (assuming they do not exceed the amount recorded in the initial measurement period). If we record an increase to the estimated purchase price liability post-measurement period, then such increase (i.e. amounts we pay out above and beyond initial estimate of liability) would get recorded as an operating cash flow. This resulted in $24.0 million and $21.0 million of cash paid for acquisitions being reclassified from cash used in investing activities to cash used in financing activities for the years ended December 31, 2017 and 2016, respectively; • Payments for debt prepayment or debt extinguishment costs, including third-party costs, premiums paid, and other fees paid to lenders that are directly related to the debt prepayment or debt extinguishment are to be reflected as cash used in financing activities. During the year ended December 31, 2018, we paid a $20.0 million premium in connection with the early redemption of our 5.00% senior notes (see Note 11). Such premium has been reflected in cash used in financing activities in the consolidated statement of cash flows for the year ended December 31, 2018. In November 2016, the FASB issued ASU 2016‑18, “Statement of Cash Flows (Topic 230): Restricted Cash.” Recent Accounting Pronouncements Pending Adoption The FASB previously issued four ASUs related to leases. The ASUs issued were: (1) in February 2016, ASU 2016-02, “Leases (Topic 842)” “Codification Improvements to Topic 842, Leases” “Target Improvements” “Leases (Topic 842): Narrow-Scope Improvements for Lessors.” We plan to adopt these ASUs in the first quarter of 2019 by using the optional transitional method associated with a cumulative-effect adjustment to the opening balance of retained earnings. Therefore, comparative financial statements presented for prior periods will not be impacted by adoption. We will elect certain practical expedients, including the package of transition practical expedients and the practical expedient to forego separating lease and non-lease components in our lessee contracts. We will make an accounting policy election to exempt short-term leases of 12 months or less from balance sheet recognition requirements associated with the new standard; fixed rental payments for short-term leases will be recognized as a straight-line expense over the lease term. We estimate that, as a result of the adoption of the leasing guidance, the consolidated balance sheet as of January 1, 2019 will reflect between $1.2 billion to $1.4 billion of additional lease liabilities. We expect to record corresponding right-of-use assets below this range, reflecting adjustments for items such as prepaid and deferred rent, unamortized initial direct costs, and unamortized lease incentive balances. We do not expect that the adoption of the leasing guidance will have a material impact on our consolidated statements of operations. The FASB previously issued two ASUs related to financial instruments – credit losses. The ASUs issued were: (1) in June 2016, ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” “Codification Improvements to Topic 326, Financial Instruments—Credit Losses.” In January 2017, the FASB issued ASU 2017‑04, “Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” In March 2017, the FASB issued ASU 2017‑08, “Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities.” The FASB previously issued two ASUs related to derivatives and hedging. The ASUs issued were: (1) in August 2017, ASU 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities” “Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting.” In February 2018, the FASB issued ASU 2018‑02, “Income Statement—Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” In July 2018, the FASB issued ASU 2018‑09, “Codification Improvements.” In August 2018, the FASB issued ASU 2018‑13, “Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement.” In August 2018, the FASB issued ASU 2018‑14, “Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans.” In October 2018, the FASB issued ASU 2018‑17, “Consolidation (Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities.” In November 2018, the FASB issued ASU 2018‑18, “Collaborative Arrangements (Topic 808): Clarifying the Interaction Between Topic 808 and Topic 606.”

FacilitySource Acquisition

FacilitySource Acquisition	12 Months Ended
	Dec. 31, 2018
Business Combinations [Abstract]
FacilitySource Acquisition	4. FacilitySource Acquisition On June 12, 2018, CBRE Jason Acquisition LLC (Merger Sub), our wholly-owned subsidiary, and FacilitySource Holdings, LLC (FacilitySource), WP X Finance, LP and Warburg Pincus X Partners, LP (collectively, the Stockholders) entered into a stock purchase agreement and plan of merger (the Merger Agreement). As part of the Merger Agreement, (i) we purchased from the Stockholders all the outstanding shares of capital stock of FS WP Holdco, Inc (Blocker Corp), which owned 1,686,013 Class A units (the Blocker Units) and (ii) immediately following the acquisition of Blocker Corp, Merger Sub merged with FacilitySource, with FacilitySource continuing as the surviving company and our wholly-owned subsidiary within our Americas segment (the FacilitySource Acquisition), with the remaining Blocker Units not held by Blocker Corp. canceled and converted into the right to receive cash consideration as set forth in the Merger Agreement. The estimated net initial purchase price was approximately $266.5 million, with $263.0 million paid in cash. We financed the transaction with cash on hand and borrowings under our revolving credit facility. We completed the FacilitySource Acquisition to help us (i) build a tech-enabled supply chain capability for the occupier outsourcing industry and (ii) drive meaningfully differentiated outcomes for leading occupiers of real estate. The following represents a summary of the excess purchase price over the estimated fair value of net assets acquired (dollars in thousands): Estimated purchase price $ 266,465 Add: Estimated fair value of net liabilities assumed (see table below) 8,632 Excess purchase price over estimated fair value of net assets acquired $ 275,097 The preliminary purchase accounting related to the FacilitySource Acquisition has been recorded in the accompanying consolidated financial statements. The excess purchase price over the estimated fair value of net assets acquired has been recorded to goodwill. The goodwill arising from the FacilitySource Acquisition consists largely of the synergies and economies of scale expected from combining the operations acquired from FacilitySource with ours. We are currently assessing if any portion of the goodwill recorded in connection with the FacilitySource Acquisition will be deductible for tax purposes, but do not expect any tax deductible goodwill to be significant. Given the complexity of the transaction, the calculation of the fair value of certain assets and liabilities acquired, primarily income tax items, is still preliminary. The purchase price allocation is expected to be completed as soon as practicable, but no later than one year from the acquisition date. The following table summarizes the aggregate estimated fair values of the assets acquired and the liabilities assumed in the FacilitySource Acquisition (dollars in thousands): Assets Acquired: Cash and cash equivalents $ 2,627 Receivables, net 37,902 Prepaid expenses 477 Property and equipment 41,680 Other intangible assets 48,200 Other assets 114 Total assets acquired 131,000 Liabilities Assumed: Accounts payable and accrued expenses 48,273 Accrued bonus and profit sharing 5,036 Compensation and employee benefits payable 1,472 Line of credit and term loan 26,295 Deferred tax liabilities, net 57,428 Other liabilities 1,128 Total liabilities assumed 139,632 Estimated Fair Value of Net Liabilities Assumed $ (8,632 ) The following is a summary of the preliminary estimate of the amortizable intangible assets and depreciable computer software acquired in connection with the FacilitySource Acquisition (dollars in thousands): As of December 31, 2018 Asset Class Weighted Average Amortization/ Depreciation Period Amount Assigned at Acquisition Date Accumulated Amortization and Depreciation Net Carrying Value Intangibles Trade name 20 years $ 37,200 $ 1,007 $ 36,193 Customer relationships 6.67 years 11,000 894 10,106 Total amortizable intangible assets acquired 16.96 years $ 48,200 $ 1,901 $ 46,299 Property and Equipment Computer software 10 years $ 38,800 $ 2,102 $ 36,698 Upon close of the FacilitySource Acquisition, we immediately repaid the line of credit and term loan assumed from FacilitySource. The accompanying consolidated statement of operations for the year ended December 31, 2018 includes revenue, an operating loss and a net loss of $121.6 million, ($3.9) million and ($2.9) million, respectively attributable to the FacilitySource Acquisition. This does not include direct transaction and integration costs of $6.7 million and depreciation and amortization expense of $4.0 million related to computer software and intangible assets acquired, all of which were incurred during the year ended December 31, 2018 in connection with the FacilitySource Acquisition. Unaudited pro forma results, assuming the FacilitySource Acquisition had occurred as of January 1, 2016 for purposes of the pro forma disclosures for the years ended December 31, 2018, 2017 and 2016 are presented below. They include certain adjustments for increased depreciation and amortization expense related to acquired computer software and intangible assets as well as increased interest expense associated with borrowings under our revolving credit facility used to fund the acquisition, as follows (dollars in thousands): Year Ended December 31, 2018 2017 2016 Depreciation expense $ 1,253 $ 3,054 $ 3,298 Amortization expense 1,019 2,190 2,190 Interest expense 2,748 6,098 6,098 Pro forma adjustments also include the removal of historical amortization of goodwill recorded by FacilitySource before we acquired them and $6.7 million of direct costs incurred by us during the year ended December 31, 2018 as well as the tax impact of all pro forma adjustments for all periods presented. These unaudited pro forma results have been prepared for comparative purposes only and do not purport to be indicative of what operating results would have been had the FacilitySource Acquisition occurred on January 1, 2016 and may not be indicative of future operating results (dollars in thousands, except share data): Year Ended December 31, 2018 2017 2016 Revenue $ 21,437,014 $ 18,778,312 $ 17,472,602 Operating income 1,089,738 1,058,834 794,495 Net income attributable to CBRE Group, Inc. 1,061,916 680,392 555,332 Basic income per share: Net income per share attributable to CBRE Group, Inc. $ 3.13 $ 2.02 $ 1.66 Weighted average shares outstanding for basic income per share 339,321,056 337,658,017 335,414,831 Diluted income per share: Net income per share attributable to CBRE Group, Inc. $ 3.09 $ 2.00 $ 1.64 Weighted average shares outstanding for diluted income per share 343,122,741 340,783,556 338,424,563

Warehouse Receivables & Warehou

Warehouse Receivables & Warehouse Lines of Credit	12 Months Ended
	Dec. 31, 2018
Warehouse Receivables And Warehouse Lines Of Credit [Abstract]
Warehouse Receivables & Warehouse Lines of Credit	5. Warehouse Receivables & Warehouse Lines of Credit A rollforward of our warehouse receivables is as follows (dollars in thousands): Beginning balance at December 31, 2017 $ 928,038 Origination of mortgage loans 20,591,602 Gains (premiums on loan sales) 56,000 Proceeds from sale of mortgage loans: Sale of mortgage loans (20,174,676 ) Cash collections of premiums on loan sales (56,000 ) Proceeds from sale of mortgage loans (20,230,676 ) Net decrease in mortgage servicing rights included in warehouse receivables (2,496 ) Ending balance at December 31, 2018 $ 1,342,468 The following table is a summary of our warehouse lines of credit in place as of December 31, 2018 and 2017 (dollars in thousands): December 31, 2018 December 31, 2017 Lender Current Maturity Pricing Maximum Facility Size Carrying Value Maximum Facility Size Carrying Value JP Morgan Chase Bank, N.A. (JP Morgan) 10/21/2019 daily one-month LIBOR plus 1.30% $ 985,000 $ 871,680 $ 1,000,000 $ 192,180 JP Morgan 10/21/2019 daily one-month LIBOR plus 2.75% 15,000 — 25,000 5,800 Fannie Mae Multifamily As Soon As Pooled Plus Agreement and Multifamily As Soon As Pooled Sale Agreement (ASAP) Program Cancelable anytime daily one-month LIBOR plus 1.35%, with a LIBOR floor of 0.35% 450,000 149,089 450,000 205,827 TD Bank, N.A. (TD Bank) (1) 6/30/2019 daily one-month LIBOR plus 1.20% 400,000 165,945 800,000 225,416 Bank of America, N.A. (BofA) (2) 6/4/2019 daily one-month LIBOR plus 1.30% 425,000 21,852 337,500 130,443 Capital One, N.A. (Capital One) (3) 7/27/2019 daily one-month LIBOR plus 1.35% 325,000 120,195 387,500 151,100 $ 2,600,000 $ 1,328,761 $ 3,000,000 $ 910,766 (1) Line was temporarily increased from $400.0 million to $800.0 million to accommodate 2017 year-end volume. Maximum facility reverted to $400.0 million on February 1, 2018. (2) Line was temporarily increased from $225.0 million to $337.5 million to accommodate 2017 year-end volume. Maximum facility reverted back to $225.0 million on January 27, 2018. During 2018, an additional $200.0 million line of credit was added. (3) Line was temporarily increased from $200.0 million to $387.5 million to accommodate 2017 year-end volume. Maximum facility reverted back to $200.0 million on January 9, 2018. During 2018, the maximum facility size was increased to $325.0 million. During the year ended December 31, 2018, we had a maximum of $2.8 billion of warehouse lines of credit principal outstanding.

Variable Interest Entities (VIE

Variable Interest Entities (VIEs)	12 Months Ended
	Dec. 31, 2018
Equity Method Investments And Joint Ventures [Abstract]
Variable Interest Entities (VIEs)	6. Variable Interest Entities (VIEs) We hold variable interests in certain VIEs in our Global Investment Management and Development Services segments which are not consolidated as it was determined that we are not the primary beneficiary. Our involvement with these entities is in the form of equity co-investments and fee arrangements. As of December 31, 2018 and 2017, our maximum exposure to loss related to the VIEs which are not consolidated was as follows (dollars in thousands): December 31, 2018 2017 Investments in unconsolidated subsidiaries $ 23,266 $ 26,273 Other current assets 3,827 3,401 Co-investment commitments 22,363 2,364 Maximum exposure to loss $ 49,456 $ 32,038

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	7 . Fair Value Measurements The “Fair Value Measurements and Disclosures” • Level 1 – Quoted prices in active markets for identical assets or liabilities. • Level 2 – Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. • Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs. There were no significant transfers in or out of Level 1 and Level 2 during the years ended December 31, 2018 and 2017. The following tables present the fair value of assets and liabilities measured at fair value on a recurring basis as of December 31, 2018 and 2017 (dollars in thousands): As of December 31, 2018 Fair Value Measured and Recorded Using Level 1 Level 2 Level 3 Total Assets Available for sale securities: Debt securities: U.S. treasury securities $ 3,138 $ — $ — $ 3,138 Debt securities issued by U.S. federal agencies — 11,196 — 11,196 Corporate debt securities — 27,201 — 27,201 Asset-backed securities — 5,017 — 5,017 Collateralized mortgage obligations — 2,224 — 2,224 Total available for sale debt securities 3,138 45,638 — 48,776 Equity securities 153,762 — — 153,762 Warehouse receivables — 1,342,468 — 1,342,468 Total assets at fair value $ 156,900 $ 1,388,106 $ — $ 1,545,006 Liabilities Interest rate swaps $ — $ 1,070 $ — $ 1,070 Securities sold, not yet purchased 3,133 — — 3,133 Total liabilities at fair value $ 3,133 $ 1,070 $ — $ 4,203 As of December 31, 2017 Fair Value Measured and Recorded Using Level 1 Level 2 Level 3 Total Assets Available for sale securities: Debt securities: U.S. treasury securities $ 3,820 $ — $ — $ 3,820 Debt securities issued by U.S. federal agencies — 4,901 — 4,901 Corporate debt securities — 20,023 — 20,023 Asset-backed securities — 3,577 — 3,577 Collateralized mortgage obligations — 2,366 — 2,366 Total available for sale debt securities 3,820 30,867 — 34,687 Equity securities 133,595 — — 133,595 Warehouse receivables — 928,038 — 928,038 Total assets at fair value $ 137,415 $ 958,905 $ — $ 1,096,320 Liabilities Interest rate swaps $ — $ 4,766 $ — $ 4,766 Securities sold, not yet purchased 3,431 — — 3,431 Foreign currency exchange forward contracts — 55 — 55 Total liabilities at fair value $ 3,431 $ 4,821 $ — $ 8,252 During the year ended December 31, 2018, we recorded a gain of $100.4 million associated with remeasuring our 50% investment in a previously unconsolidated subsidiary in New England to fair value as of the date we acquired the remaining 50% controlling interest. Fair value of this investment in unconsolidated subsidiary at acquisition date was $110.1 million, based upon the purchase price paid for the remaining 50% interest acquired, excluding the estimated control premium paid, which falls under Level 3 of the fair value hierarchy. Such gain was reflected in other income in our Americas segment in the accompanying consolidated statements of operations for the year ended December 31, 2018. There were no significant non-recurring fair value measurements recorded during the years ended December 31, 2017 and 2016. The fair values of the warehouse receivables are primarily calculated based on already locked in security buy prices. At December 31, 2018 and 2017, all of the warehouse receivables included in the accompanying consolidated balance sheets were either under commitment to be purchased by Freddie Mac or had confirmed forward trade commitments for the issuance and purchase of Fannie Mae or Ginnie Mae mortgage backed securities that will be secured by the underlying loans (See Notes 2 and 5). These assets are classified as Level 2 in the fair value hierarchy as a substantial majority of inputs are readily observable. The valuation of interest rate swaps and foreign currency exchange forward contracts is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate and foreign currency exchange forward curves. The fair values of interest rate swaps and foreign currency exchange forward contracts are determined using the market standard methodology of netting the discounted future estimated cash payments/receipts. The estimated cash flows are based on an expectation of future interest rates or foreign currency exchange rates using forward curves derived from observable market interest rate and foreign currency exchange forward curves. Fair value measurements for our available for sale debt securities are obtained from independent pricing services which utilize observable market data that may include quoted market prices, dealer quotes, market spreads, cash flows, the U.S. treasury yield curve, trading levels, market consensus prepayment speeds, credit information and the instrument's terms and conditions. The equity securities and securities sold, not yet purchased are primarily in the U.S. and are generally valued at the last reported sales price on the day of valuation or, if no sales occurred on the valuation date, at the mean of the bid and asked prices on such date. FASB ASC Topic 825, “ Financial Instruments • Cash and Cash Equivalents and – These balances include cash and cash equivalents as well as restricted cash with maturities of less than three months. The carrying amount approximates fair value due to the short-term maturities of these instruments. • Receivables, less Allowance for Doubtful Accounts – Due to their short-term nature, fair value approximates carrying value. • Warehouse Receivables – These balances are carried at fair value. The primary source of value is either a contractual purchase commitment from Freddie Mac or a confirmed forward trade commitment for the issuance and purchase of a Fannie Mae or Ginnie Mae MBS (see Notes 2 and 5). • Available For Sale Debt Securities – These investments are carried at their fair value. • Equity Securities – These investments are carried at their fair value. • Foreign Currency Exchange Forward Contracts – These assets and liabilities are carried at their fair value as calculated by using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. • Securities Sold, not yet Purchased – These liabilities are carried at their fair value. • Short-Term Borrowings – This balance represents outstanding amounts under our warehouse lines of credit of our wholly-owned subsidiary, CBRE Capital Markets. Due to the short-term nature and variable interest rates of these instruments, fair value approximates carrying value (see Notes 5 and 11). • Senior Term Loans – Based upon information from third-party banks (which falls within Level 2 of the fair value hierarchy), the estimated fair value of our senior term loans was approximately $757.0 million and $199.9 million at December 31, 2018 and 2017, respectively. Their actual carrying value, net of unamortized debt issuance costs, totaled $751.3 million and $193.5 million at December 31, 2018 and 2017, respectively (see Note 11). • Interest Rate Swaps – These liabilities are carried at their fair value as calculated by using widely-accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative (see Note 11). • Senior Notes – Based on dealers’ quotes (which falls within Level 2 of the fair value hierarchy), the estimated fair values of our 4.875 and $443.7 million, respectively, at December 31, 2018 and $645.7 million and $468.0 million, respectively, at December 31, 2017. The actual carrying value of our 4.875 $592.0 million and $422.4 million, respectively, at December 31, 2017. In March 2018, we redeemed our 5.00% senior notes in full (see Note 11). At December 31, 2017, the estimated fair value (based on dealers’ quotes) and actual carrying value (net of unamortized debt issuance costs) of our 5.00% senior notes was $823.8 million and $791.7 million, respectively • Notes Payable on Real Estate – As of December 31, 2018 and 2017, the carrying value of our notes payable on real estate, net of unamortized debt issuance costs, was $6.3 million and $17.9 million, respectively. These notes payable were not recourse to CBRE Group, Inc., except for being recourse to the single-purpose entities that held the real estate assets and were the primary obligors on the notes payable. These borrowings have either fixed interest rates or floating interest rates at spreads added to a market index. Although it is possible that certain portions of our notes payable on real estate may have fair values that differ from their carrying values, based on the terms of such loans as compared to current market conditions, or other factors specific to the borrower entity, we do not believe that the fair value of our notes payable is significantly different than their carrying value.

Property and Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2018
Property Plant And Equipment [Abstract]
Property and Equipment	8. Property and Equipment Property and equipment consists of the following (dollars in thousands): December 31, Useful Lives 2018 2017 Computer hardware and software 3-10 years $ 838,301 $ 670,059 Leasehold improvements 1-15 years 472,952 415,947 Furniture and equipment 1-10 years 307,812 279,621 Equipment under capital leases 3-5 years 10,654 10,803 Total cost 1,629,719 1,376,430 Accumulated depreciation and amortization (908,027 ) (758,691 ) Property and equipment, net $ 721,692 $ 617,739 Depreciation and amortization expense associated with property and equipment was $192.8 million, $166.0 million and $151.2 million for the years ended December 31, 2018, 2017 and 2016, respectively.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	9. Goodwill and Other Intangible Assets The following table summarizes the changes in the carrying amount of goodwill for the years ended December 31, 2018 and 2017 (dollars in thousands): Americas EMEA Asia Pacific Global Investment Management Development Services Total Balance as of December 31, 2016: Goodwill $ 2,302,929 $ 1,047,295 $ 150,706 $ 462,305 $ 86,663 $ 4,049,898 Accumulated impairment losses (798,290 ) (138,631 ) — (44,922 ) (86,663 ) (1,068,506 ) 1,504,639 908,664 150,706 417,383 — 2,981,392 Purchase accounting entries related to acquisitions 104,654 17,402 4,198 17,568 — 143,822 Foreign exchange movement 993 91,761 11,204 25,568 — 129,526 Balance as of December 31, 2017: Goodwill 2,408,576 1,156,458 166,108 505,441 86,663 4,323,246 Accumulated impairment losses (798,290 ) (138,631 ) — (44,922 ) (86,663 ) (1,068,506 ) 1,610,286 1,017,827 166,108 460,519 — 3,254,740 Purchase accounting entries related to acquisitions 450,380 17,838 8,096 (5,110 ) — 471,204 Foreign exchange movement (1,623 ) (51,753 ) (8,556 ) (11,703 ) — (73,635 ) Balance as of December 31, 2018: Goodwill 2,857,333 1,122,543 165,648 488,628 86,663 4,720,815 Accumulated impairment losses (798,290 ) (138,631 ) — (44,922 ) (86,663 ) (1,068,506 ) $ 2,059,043 $ 983,912 $ 165,648 $ 443,706 $ — $ 3,652,309 In the second quarter of 2018, we completed the FacilitySource Acquisition (see Note 4). Additionally, during 2018, we acquired a retail leasing and property management firm in Australia, two firms in Israel (our former affiliate and a majority interest in a local facilities management provider), a commercial real estate services provider in San Antonio, a provider of real estate and facilities consulting services to healthcare companies across the United States and the remaining 50% equity interest in our longstanding New England joint venture. During 2017, we completed 11 in-fill acquisitions, including two leading Software as a Service (SaaS) platforms – one that produces scalable interactive visualization technologies for commercial real estate and one that provides technology solutions for facilities management operations, a healthcare-focused project manager in Australia, a full-service brokerage and management boutique in South Florida, a technology-enabled national boutique commercial real estate finance and consulting firm in the United States, a retail consultancy in France, a majority interest in a Toronto-based investment management business specializing in private infrastructure and private equity investments, a San Francisco-based technology-focused boutique real estate brokerage firm, a project management and design engineering firm operating across the United States, a Washington, D.C.-based retail brokerage operation and a leading technical engineering services provider in Italy. Our annual assessment of goodwill and other intangible assets deemed to have indefinite lives has historically been completed as of the beginning of the fourth quarter of each year. We performed the 2018, 2017 and 2016 assessments as of October 1. When we performed our required annual goodwill impairment review as of October 1, 2018, 2017 and 2016, we determined that no impairment existed as the estimated fair value of our reporting units was in excess of their carrying value. Other intangible assets totaled $1.4 billion, net of accumulated amortization of $1.2 billion as of December 31, 2018, and $1.4 billion, December 31, 2018 2017 Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Unamortizable intangible assets: Management contracts $ 86,585 $ 90,503 Trademarks 56,800 56,800 Trade names 16,250 16,250 159,635 163,553 Amortizable intangible assets: Customer relationships 843,387 $ (435,225 ) 802,597 $ (355,642 ) Mortgage servicing rights 697,322 (272,852 ) 608,757 (235,626 ) Trademarks/Trade name 312,699 (76,514 ) 321,406 (64,866 ) Management contracts 200,251 (135,835 ) 203,291 (122,450 ) Covenant not to compete 73,750 (73,750 ) 73,750 (57,358 ) Other 334,657 (186,217 ) 226,496 (164,796 ) 2,462,066 (1,180,393 ) 2,236,297 (1,000,738 ) Total intangible assets $ 2,621,701 $ (1,180,393 ) $ 2,399,850 $ (1,000,738 ) Unamortizable intangible assets include management contracts identified as a result of the REIM Acquisitions relating to relationships with open-end funds, a trademark separately identified as a result of the 2001 Acquisition and a trade name separately identified in connection with the REIM Acquisitions, which represents the Clarion Partners trade name in the U.S. These intangible assets have indefinite useful lives and accordingly are not being amortized. Customer relationships relate to existing relationships acquired through acquisitions mainly in the brokerage, occupier outsourcing and property management lines of business that are being amortized over useful lives of up to 20 years. Mortgage servicing rights represent the carrying value of servicing assets in our mortgage brokerage line of business in the U.S. The mortgage servicing rights are being amortized over the estimated period that net servicing income is expected to be received, which is typically up to ten years. In connection with the GWS Acquisition, trademarks of approximately $280 million were separately identified and are being amortized over 20 years. Management contracts consist primarily of asset management contracts relating to relationships with closed-end funds and separate accounts in the U.S., Europe and Asia that were separately identified as a result of the REIM Acquisitions. These management contracts are being amortized over useful lives of up to 13 years. A covenant not to compete of approximately $74 million was separately identified in connection with the GWS Acquisition and was amortized over three years. Other amortizable intangible assets mainly represent transition costs, which primarily get amortized to cost of services over the life of the associated contract. Amortization expense related to intangible assets was $258.7 million, $238.7 million and $211.7 million for the years ended December 31, 2018, 2017 and 2016, respectively. The estimated annual amortization expense for each of the years ending December 31, 2019 through December 31, 2023 approximates $208.2 million, $182.2 million, $151.4 million, $134.1 million and $119.9 million, respectively.

Investments in Unconsolidated S

Investments in Unconsolidated Subsidiaries	12 Months Ended
	Dec. 31, 2018
Equity Method Investments And Joint Ventures [Abstract]
Investments in Unconsolidated Subsidiaries	10. Investments in Unconsolidated Subsidiaries Investments in unconsolidated subsidiaries are accounted for under the equity method of accounting. Our investment ownership percentages in equity method investments vary, generally ranging up to 5.0% in our Global Investment Management segment, up to 30.0% in our Development Services segment, and up to 50.0% in our other business segments. Combined condensed financial information for the entities accounted for using the equity method is as follows (dollars in thousands): Condensed Balance Sheets Information: December 31, 2018 2017 Global Investment Management Current assets $ 824,884 $ 1,304,249 Non-current assets 16,296,613 15,369,496 Total assets $ 17,121,497 $ 16,673,745 Current liabilities $ 409,014 $ 526,777 Non-current liabilities 4,423,313 4,354,825 Total liabilities $ 4,832,327 $ 4,881,602 Non-controlling interests $ 261,654 $ 83,579 Development Services Current assets $ 3,058,166 $ 2,995,449 Non-current assets 99,728 102,508 Total assets $ 3,157,894 $ 3,097,957 Current liabilities $ 1,478,461 $ 1,451,239 Non-current liabilities 67,913 110,649 Total liabilities $ 1,546,374 $ 1,561,888 Other Current assets $ 48,061 $ 86,171 Non-current assets 182,564 76,577 Total assets $ 230,625 $ 162,748 Current liabilities $ 32,480 $ 54,211 Non-current liabilities 3,891 1,340 Total liabilities $ 36,371 $ 55,551 Total Current assets $ 3,931,111 $ 4,385,869 Non-current assets 16,578,905 15,548,581 Total assets $ 20,510,016 $ 19,934,450 Current liabilities $ 1,919,955 $ 2,032,227 Non-current liabilities 4,495,117 4,466,814 Total liabilities $ 6,415,072 $ 6,499,041 Non-controlling interests $ 261,654 $ 83,579 Condensed Statements of Operations Information: Year Ended December 31, 2018 2017 2016 Global Investment Management Revenue $ 1,199,641 $ 1,108,125 $ 1,184,573 Operating income 641,150 972,493 209,230 Net income 463,560 833,189 122,560 Development Services Revenue $ 124,175 $ 104,816 $ 85,594 Operating income 254,191 427,407 292,141 Net income 204,619 395,697 269,841 Other Revenue $ 200,869 $ 179,649 $ 156,035 Operating income 11,548 25,924 26,500 Net income 11,533 25,459 26,350 Total Revenue $ 1,524,685 $ 1,392,590 $ 1,426,202 Operating income 906,889 1,425,824 527,871 Net income 679,712 1,254,345 418,751 Our Global Investment Management segment invests our own capital in certain real estate investments with clients. We have provided investment management, property management, brokerage and other professional services in connection with these real estate investments on an arm’s length basis and earned revenues from these unconsolidated subsidiaries of $134.3 million, $100.3 million and $86.8 million during the years ended December 31, 2018, 2017 and 2016, respectively.

Long-Term Debt and Short-Term B

Long-Term Debt and Short-Term Borrowings	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Long-Term Debt and Short-Term Borrowings	11. Long-Term Debt and Short-Term Borrowings Total long-term debt and short-term borrowings consist of the following (dollars in thousands): December 31, 2018 2017 Long-Term Debt Senior term loans, with interest ranging from 0.75% to 3.38%, due through 2023 $ 758,452 $ 200,000 4.875% senior notes due in 2026, net of unamortized discount 596,653 596,273 5.25% senior notes due in 2025, net of unamortized premium 426,134 426,317 5.00% senior notes, redeemed in March 2018 — 800,000 Other 3,682 8 Total long-term debt 1,784,921 2,022,598 Less: current maturities of long-term debt (3,146 ) (8 ) Less: unamortized debt issuance costs (14,515 ) (22,987 ) Total long-term debt, net of current maturities $ 1,767,260 $ 1,999,603 Short-Term Borrowings Warehouse lines of credit, with interest ranging from 2.82% to 5.25%, due in 2019 $ 1,328,761 $ 910,766 Other — 16 Total short-term borrowings $ 1,328,761 $ 910,782 Future annual aggregate maturities of total consolidated gross debt (excluding unamortized discount, premium and deferred financing costs) at December 31, 2018 are as follows (dollars in thousands): 2019—$1,331,907; 2020—$536; 2021—$0; 2022—$300,000; 2023—$458,452 and $1,025,000 thereafter. Long-Term Debt We maintain credit facilities with third-party lenders, which we use for a variety of purposes. On January 9, 2015, CBRE Services, our wholly-owned subsidiary, entered into an amended and restated credit agreement (2015 Credit Agreement) with a syndicate of banks jointly led by Merrill Lynch, Pierce, Fenner & Smith Incorporated, J.P. Morgan Securities LLC and Credit Suisse AG (CS). On March 21, 2016, CBRE Services executed an amendment to the 2015 Credit Agreement that, among other things, extended the maturity on the revolving credit facility to March 2021 and increased the borrowing capacity under the revolving credit facility by $200.0 million. On October 31, 2017, CBRE Services entered into a new Credit Agreement (the 2017 Credit Agreement), which refinanced and replaced the 2015 Credit Agreement. We used $200.0 million of borrowings from the tranche A term loan facility and $83.0 million of revolving credit facility borrowings under the 2017 Credit Agreement, in addition to cash on hand, to repay all amounts outstanding under the 2015 Credit Agreement. On December 20, 2018, CBRE Global Acquisition Company, a wholly-owned subsidiary of CBRE Services, entered into an incremental term loan assumption agreement with a syndicate of banks jointly led by Wells Fargo Bank and National Westminster Bank plc to establish a new euro term loan facility under the 2017 Credit Agreement in an aggregate principal amount of 400.0 million euros. The proceeds of the new euro term loan facility were used to repay a portion of the U.S. dollar denominated term loans outstanding under the 2017 Credit Agreement. The 2017 Credit Agreement is a senior unsecured credit facility that is jointly and severally guaranteed by us and certain of our subsidiaries. As of December 31, 2018, the 2017 Credit Agreement provided for the following: (1) a $2.8 billion revolving credit facility, which includes the capacity to obtain letters of credit and swingline loans and matures on October 31, 2022; (2) a $750.0 million delayed draw tranche A term loan facility, requiring quarterly principal payments, which began on March 5, 2018 and continue through maturity on October 31, 2022, provided that in the event that our leverage ratio (as defined in the 2017 Credit Agreement) is less than or equal to 2.50 to 1.00 on the last day of the fiscal quarter immediately preceding any such payment date, no such quarterly principal payment shall be required on such date and (3) a 400.0 million euro term loan facility due and payable in full at maturity on December 20, 2023. As of December 31, 2018, borrowings under the tranche A term loan facility under the 2017 Credit Agreement bear interest, based at our option, on either (1) the applicable fixed rate plus 0.875% to 1.25% or (2) the daily rate plus 0.0% to 0.25%, in each case as determined by reference to our Credit Rating (as defined in the 2017 Credit Agreement) and borrowings under the euro term loan facility under the 2017 Credit Agreement bear interest at a minimum rate of 0.75% plus EURIBOR (as of December 31, 2018, EURIBOR was negative). We had $294.4 million and $193.5 million of tranche A term loan borrowings outstanding under the 2017 Credit Agreement (at interest rates of 3.36% and 2.51%), net of unamortized debt issuance costs, included in the accompanying consolidated balance sheets at December 31, 2018 and 2017, respectively. In addition, as of December 31, 2018, we had $456.9 million of euro term loan borrowings outstanding under the 2017 Credit Agreement (at an interest rate of 0.75%), net of unamortized debt issuance costs, which was included in the accompanying consolidated balance sheets. In March 2011, we entered into five interest rate swap agreements, all with effective dates in October 2011, and immediately designated them as cash flow hedges in accordance with FASB ASC Topic 815, “ Derivatives and Hedging On August 13, 2015, CBRE Services issued $600.0 million in aggregate principal amount of 4.875% senior notes due March 1, 2026 at a price equal to 99.24% of their face value. The 4.875% senior notes are unsecured obligations of CBRE Services, senior to all of its current and future subordinated indebtedness, but effectively subordinated to all of its current and future secured indebtedness. The 4.875% senior notes are jointly and severally guaranteed on a senior basis by us and each domestic subsidiary of CBRE Services that guarantees our 2017 Credit Agreement. Interest accrues at a rate of 4.875% per year and is payable semi-annually in arrears on March 1 and September 1, with the first interest payment made on March 1, 2016. The 4.875% senior notes are redeemable at our option, in whole or in part, prior to December 1, 2025 at a redemption price equal to the greater of (1) 100% of the principal amount of the 4.875% senior notes to be redeemed and (2) the sum of the present values of the remaining scheduled payments of principal and interest thereon to December 1, 2025 (not including any portions of payments of interest accrued as of the date of redemption) discounted to the date of redemption on a semi-annual basis at the Adjusted Treasury Rate (as defined in the indenture governing these notes). In addition, at any time on or after December 1, 2025, the 4.875% senior notes may be redeemed by us, in whole or in part, at a redemption price equal to 100.0% of the principal amount, plus accrued and unpaid interest, if any, to (but excluding) the date of redemption. If a change of control triggering event (as defined in the indenture governing these notes) occurs, we are On September 26, 2014, CBRE Services issued $300.0 million in aggregate principal amount of 5.25% senior notes due March 15, 2025. On December 12, 2014, CBRE Services issued an additional $125.0 million in aggregate principal amount of 5.25% senior notes due March 15, 2025 at a price equal to 101.5% of their face value, plus interest deemed to have accrued from September 26, 2014. The 5.25% senior notes are unsecured obligations of CBRE Services, senior to all of its current and future subordinated indebtedness, but effectively subordinated to all of its current and future secured indebtedness. The 5.25% senior notes are jointly and severally guaranteed on a senior basis by us and each domestic subsidiary of CBRE Services that guarantees our 2017 Credit Agreement. Interest accrues at a rate of 5.25% per year and is payable semi-annually in arrears on March 15 and September 15, with the first interest payment made on March 15, 2015. The 5.25% senior notes are redeemable at our option, in whole or in part, prior to December 15, 2024 at a redemption price equal to the greater of (1) 100% of the principal amount of the 5.25% senior notes to be redeemed and (2) the sum of the present values of the remaining scheduled payments of principal and interest thereon to December 15, 2024 (not including any portions of payments of interest accrued as of the date of redemption) discounted to the date of redemption on a semi-annual basis at the Adjusted Treasury Rate (as defined in the indentures governing these notes). In addition, at any time on or after December 15, 2024, the 5.25% senior notes may be redeemed by us, in whole or in part, at a redemption price equal to 100.0% of the principal amount, plus accrued and unpaid interest, if any, to (but excluding) the date of redemption. If a change of control triggering event (as defined in the indenture governing these notes) occurs, we are On March 14, 2013, CBRE Services issued $800.0 million in aggregate principal amount of 5.00% senior notes due March 15, 2023. The 5.00% senior notes were unsecured obligations of CBRE Services, senior to all of its current and future subordinated indebtedness, but effectively subordinated to all of its current and future secured indebtedness. The 5.00% senior notes were jointly and severally guaranteed on a senior basis by us and each domestic subsidiary of CBRE Services that guaranteed our 2017 Credit Agreement. Interest accrued at a rate of 5.00% per year and was payable semi-annually in arrears on March 15 and September 15. The 5.00% senior notes were redeemable at our option, in whole or in part, on March 15, 2018 at a redemption price of 102.5% of the principal amount on that date. We redeemed these notes in full on March 15, 2018 and incurred charges of $28.0 million, including a premium of $20.0 million and the write-off of $8.0 million of unamortized deferred financing costs. We funded this redemption with $550.0 million of borrowings from our tranche A term loan facility and borrowings from our revolving credit facility under our 2017 Credit Agreement. The amount of the 5.00% senior notes, net of unamortized debt issuance costs, included in the accompanying consolidated balance sheets was $791.7 million at December 31, 2017. The indentures governing our 4.875% senior notes and 5.25% senior notes contain restrictive covenants that, among other things, limit our ability to create or permit liens on assets securing indebtedness, enter into sale/leaseback transactions and enter into consolidations or mergers. In addition, our 2017 Credit Agreement also requires us to maintain a minimum coverage ratio of consolidated EBITDA (as defined in the 2017 Credit Agreement) to consolidated interest expense of 2.00x and a maximum leverage ratio of total debt less available cash to consolidated EBITDA (as defined in the 2017 Credit Agreement) of 4.25x (and in the case of the first four full fiscal quarters following consummation of a qualified acquisition (as defined in the 2017 Credit Agreement), 4.75x) as of the end of each fiscal quarter. On this basis, our coverage ratio of consolidated EBITDA to consolidated interest expense was 20.61x for the year ended December 31, 2018, and our leverage ratio of total debt less available cash to consolidated EBITDA was 0.61x as of December 31, 2018. Short-Term Borrowings We had short-term borrowings of $1.3 billion and $910.8 million as of December 31, 2018 and 2017, respectively, with related weighted average interest rates of 3.8% and 2.7%, respectively, which are included in the accompanying consolidated balance sheets. Revolving Credit Facility The revolving credit facility under the 2017 Credit Agreement allows for borrowings outside of the U.S., with a $200.0 million sub-facility available to one of our Canadian subsidiaries, one of our Australian subsidiaries and one of our New Zealand subsidiaries and a $300.0 million sub-facility available to one of our U.K. subsidiaries. Borrowings under the revolving credit facility bear interest at varying rates, based at our option, on either (1) the applicable fixed rate plus 0.775% to 1.075% or (2) the daily rate plus 0.0% to 0.075%, in each case as determined by reference to our Credit Rating (as defined in the 2017 Credit Agreement). The 2017 Credit Agreement requires us to pay a fee based on the total amount of the revolving credit facility commitment (whether used or unused). As of both December 31, 2018 and 2017, no amounts were outstanding under our revolving credit facility other than letters of credit totaling $2.0 million. These letters of credit, which reduce the amount we may borrow under the revolving credit facility, were primarily issued in the ordinary course of business. Warehouse Lines of Credit CBRE Capital Markets has warehouse lines of credit with third-party lenders for the purpose of funding mortgage loans that will be resold, and a funding arrangement with Fannie Mae for the purpose of selling a percentage of certain closed multifamily loans to Fannie Mae. These warehouse lines are recourse only to CBRE Capital Markets and are secured by our related warehouse receivables. See Note 5 for additional information.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2018
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	12. Commitments and Contingencies We are a party to a number of pending or threatened lawsuits arising out of, or incident to, our ordinary course of business. We believe that any losses in excess of the amounts accrued therefor as liabilities on our financial statements are unlikely to be significant, but litigation is inherently uncertain and there is the potential for a material adverse effect on our financial statements if one or more matters are resolved in a particular period in an amount materially in excess of what we anticipated. Our leases generally relate to office space that we occupy, have varying terms and expire at various dates through 2036. The following is a schedule by year of future minimum lease payments for noncancelable operating leases as of December 31, 2018 (dollars in thousands): 2019 $ 238,954 2020 219,351 2021 202,205 2022 172,267 2023 145,705 Thereafter 510,741 Total minimum payment required $ 1,489,223 Total minimum payments for noncancelable operating leases were not reduced by the minimum sublease rental income of $15.4 million due in the future under noncancelable subleases. Substantially all leases require us to pay maintenance costs, insurance and property taxes. The composition of total rental expense under noncancelable operating leases consisted of the following (dollars in thousands): Year Ended December 31, 2018 2017 2016 Minimum rentals $ 294,107 $ 276,676 $ 252,285 Less sublease rentals (2,808 ) (3,446 ) (4,322 ) $ 291,299 $ 273,230 $ 247,963 In January 2008, CBRE MCI, a wholly-owned subsidiary of CBRE Capital Markets, entered into an agreement with Fannie Mae under Fannie Mae’s DUS Program to provide financing for multifamily housing with five or more units. Under the DUS Program, CBRE MCI originates, underwrites, closes and services loans without prior approval by Fannie Mae, and typically, is subject to sharing up to one-third of any losses on loans originated under the DUS Program. CBRE MCI has funded loans subject to such loss sharing arrangements with unpaid principal balances of $23.2 billion at December 31, 2018. CBRE MCI, under its agreement with Fannie Mae, must post cash reserves or other acceptable collateral under formulas established by Fannie Mae to provide for sufficient capital in the event losses occur. As of December 31, 2018 and 2017, CBRE MCI had a $64.0 million and a $58.0 million, respectively, letter of credit under this reserve arrangement, and had recorded a liability of approximately $37.9 million and $32.9 million, respectively, for its loan loss guarantee obligation under such arrangement. Fannie Mae’s recourse under the DUS Program is limited to the assets of CBRE MCI, which assets totaled approximately $946.9 million (including $677.4 million of warehouse receivables, a substantial majority of which are pledged against warehouse lines of credit and are therefore not available to Fannie Mae) at December 31, 2018. CBRE Capital Markets participates in Freddie Mac’s Multifamily Small Balance Loan (SBL) Program. Under the SBL program, CBRE Capital Markets has certain repurchase and loss reimbursement obligations. These obligations are for the period from origination of the loan to the securitization date. CBRE Capital Markets must post a cash reserve or other acceptable collateral to provide for sufficient capital in the event the obligations are triggered. As of both December 31, 2018 and 2017, CBRE Capital Markets had posted a $5.0 million letter of credit under this reserve arrangement. We had outstanding letters of credit totaling $74.9 million as of December 31, 2018, excluding letters of credit for which we have outstanding liabilities already accrued on our consolidated balance sheet related to our subsidiaries’ outstanding reserves for claims under certain insurance programs as well as letters of credit related to operating leases. The CBRE Capital Markets letters of credit totaling $69.0 million as of December 31, 2018 referred to in the preceding paragraphs represented the majority of the $74.9 million outstanding letters of credit as of such date. The remaining letters of credit are primarily executed by us in the ordinary course of business and expire at varying dates through September 2019. We had guarantees totaling $56.3 million as of December 31, 2018, excluding guarantees related to pension liabilities, consolidated indebtedness and other obligations for which we have outstanding liabilities already accrued on our consolidated balance sheet, and excluding guarantees related to operating leases. The $56.3 million primarily represents guarantees executed by us in the ordinary course of business, including various guarantees of management and vendor contracts in our operations overseas, which expire at the end of each of the respective agreements. In addition, as of December 31, 2018, we had issued numerous non-recourse carveout, completion and budget guarantees relating to development projects for the benefit of third parties. These guarantees are commonplace in our industry and are made by us in the ordinary course of our Development Services business. Non-recourse carveout guarantees generally require that our project-entity borrower not commit specified improper acts, with us potentially liable for all or a portion of such entity’s indebtedness or other damages suffered by the lender if those acts occur. Completion and budget guarantees generally require us to complete construction of the relevant project within a specified timeframe and/or within a specified budget, with us potentially being liable for costs to complete in excess of such timeframe or budget. However, we generally use “guaranteed maximum price” contracts with reputable, bondable general contractors with respect to projects for which we provide these guarantees. These contracts are intended to pass the risk to such contractors. While there can be no assurance, we do not expect to incur any material losses under these guarantees. An important part of the strategy for our Global Investment Management business involves investing our capital in certain real estate investments with our clients. These co-investments generally total up to 2.0% of the equity in a particular fund. As of December 31, 2018, we had aggregate commitments of $53.7 million to fund future co-investments. Additionally, an important part of our Development Services business strategy is to invest in unconsolidated real estate subsidiaries as a principal (in most cases co-investing with our clients). As of December 31, 2018, we had committed to fund $34.7 million of additional capital to these unconsolidated subsidiaries.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2018
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plans	13. Employee Benefit Plans Stock Incentive Plans 2012 Equity Incentive Plan. Our 2012 equity incentive plan was adopted by our board of directors and approved by our stockholders on May 8, 2012. The 2012 equity incentive plan authorized the grant of stock-based awards to our employees, directors and independent contractors. However, our 2012 stock incentive plan was terminated in May 2017 in connection with the adoption of our 2017 equity incentive plan, which is described below. At termination, no unissued shares from the 2012 stock incentive plan were allocated to the 2017 equity incentive plan for potential future issuance. Since our 2012 stock incentive plan has been terminated, no new awards may be granted under it. However, as of December 31, 2018, assuming the maximum number of shares under our performance-based awards will later be issued, 3,255,964 outstanding restricted stock unit (RSU) awards granted under the 2012 stock incentive plan to acquire shares of our Class A common stock remain outstanding according to their terms, and we will continue to issue shares to the extent required under the terms of such outstanding awards. Shares underlying awards that expire, terminate or lapse under the 2012 stock incentive plan will not become available for grant under the 2017 equity incentive plan. 2017 Equity Incentive Plan. Our 2017 equity incentive plan was adopted by our board of directors and approved by our stockholders on May 19, 2017. The 2017 equity incentive plan authorizes the grant of stock-based awards to our employees, directors and independent contractors. Unless terminated earlier, the 2017 equity incentive plan will terminate on March 3, 2027. A total of 10,000,000 shares of our Class A common stock were reserved for issuance under the 2017 equity incentive plan. Additionally, shares underlying expired, canceled, forfeited or terminated awards (other than awards granted in substitution of an award previously granted), plus those utilized to pay tax withholding obligations with respect to an award (other than an option or stock appreciation right) will be available for issuance under the 2017 equity incentive plan. No person is eligible to be granted equity awards in the aggregate covering more than 3,300,000 shares during any fiscal year or cash awards in excess of $5.0 million for any fiscal year. The number of shares issued or reserved pursuant to the 2017 equity incentive plan, or pursuant to outstanding awards, is subject to adjustment on account of a stock split of our outstanding shares, stock dividend, dividend payable in a form other than shares in an amount that has a material effect on the price of the shares, consolidation, combination or reclassification of the shares, recapitalization, spin-off, or other similar occurrence. Stock options and stock appreciation rights granted under the 2017 equity incentive plan are subject to a maximum term of ten years from the date of grant. All awards are generally subject to a minimum three year vesting schedule. As of December 31, 2018, assuming the maximum number of shares under our performance-based awards will later be issued, 3,632,717 shares remained available for future grants under this plan . Non-Vested Stock Awards We have issued non-vested stock awards, including restricted stock units and restricted shares, in our Class A common stock to certain of our employees, independent contractors and members of our board of directors. The following is a summary of the awards granted during the years ended December 31, 2018, 2017 and 2016 . • During the year ended December 31, 2018, we granted RSUs that are performance vesting in nature, with 1,014,269 reflecting the maximum number of RSUs that may be issued if all of the performance targets are satisfied at their highest levels, and 1,332,085 RSUs that are time vesting in nature. • During the year ended December 31, 2017, we granted RSUs that are performance vesting in nature, with 1,458,033 reflecting the maximum number of RSUs that may be issued if all of the performance targets are satisfied at their highest levels, and 1,466,986 RSUs that are time vesting in nature. • During the year ended December 31, 2016, we granted RSUs that are performance vesting in nature, with 60,098 reflecting the maximum number of RSUs that may be issued if all of the performance targets are satisfied at their highest levels, and 1,436,310 RSUs that are time vesting in nature. Our annual performance-vesting awards generally vest in full three years from the grant date, based on our achievement against various adjusted income per share performance targets, or in some cases against adjusted EBITDA performance targets of our consolidated business, business lines or regions. Our time-vesting awards generally vest 25% per year over four years from the grant date . In addition, on December 1, 2017, we made a special grant of RSUs under our 2017 equity incentive plan (Special RSU grant) to certain of our employees, with 3,288,618 reflecting the maximum number of RSUs that may be issued if all of the performance targets are satisfied at their highest levels, and 939,605 RSUs that are time vesting in nature. During 2018, we made additional grants under this Special RSU grant program to certain of our employees, with 122,610 reflecting the maximum number of RSUs that may be issued if all of the performance targets are satisfied at their highest levels, and 35,031 RSUs that are time vesting in nature. As a condition to this Special RSU grant, each participant has agreed to execute a Restrictive Covenants Agreement. Each Special RSU grant consisted of: (i) Time Vesting RSUs with respect to 33.3% of the total number of target RSUs subject to the grant. (ii) Total Shareholder Return (TSR) Performance RSUs with respect to 33.3% of the total number of target RSUs subject to the grant. The actual number of TSR Performance RSUs that will vest is determined by measuring our cumulative TSR against the cumulative TSR of each of the other companies comprising the S&P 500 on the Grant Date (the Comparison Group) over a six-year measurement period commencing on the Grant Date and ending on December 1, 2023. For purposes of measuring TSR, the initial value of our common stock will be the average closing price of such common stock for the 60 trading days immediately preceding the Grant Date and the final value of our common stock will be the average closing price of such common stock for the 60 trading days immediately preceding December 1, 2023. (iii) EPS Performance RSUs with respect to 33.3% of the total number of target RSUs subject to the grant. The actual number of EPS Performance RSUs that will vest is determined by measuring our cumulative adjusted income per share growth against the cumulative EPS growth, as reported under GAAP (GAAP EPS), of each of the other members of the Comparison Group over a six-year measurement period commencing on January 1, 2018 and ending on December 31, 2023. The Time Vesting and TSR Performance RSUs subject to the Special RSU grants vest on December 1, 2023, while the EPS Performance RSUs subject to the Special RSU grants vest on December 31, 2023. We estimated the fair value of the TSR Performance RSUs referred to above on the date of the grant using a Monte Carlo simulation with the following assumptions: Year Ended December 31, 2018 2017 Volatility of common stock 25.02 % 27.85 % Expected dividend yield 0.00 % 0.00 % Risk-free interest rate 2.73 % 2.33 % Lastly, on December 15, 2017, we granted 127,160 RSUs that are time vesting in nature to certain senior brokers. Such awards generally vest in full three years from the grant date. A summary of the status of our non-vested stock awards is presented in the table below: Shares/Units Weighted Average Market Value Per Share Balance at December 31, 2015 7,467,065 $ 29.08 Granted 1,496,408 29.24 Vested (3,840,379 ) 25.09 Forfeited (279,821 ) 28.62 Balance at December 31, 2016 4,843,273 31.66 Granted 5,152,082 40.11 Vested (2,020,812 ) 29.75 Forfeited (297,441 ) 32.85 Balance at December 31, 2017 7,677,102 37.76 Granted 2,023,266 45.70 Vested (1,894,847 ) 34.29 Forfeited (623,161 ) 40.85 Balance at December 31, 2018 7,182,360 41.04 Total compensation expense related to non-vested stock awards was $128.2 million, $93.1 million and $63.5 million for the years ended December 31, 2018, 2017 and 2016, respectively. At December 31, 2018, total unrecognized estimated compensation cost related to non-vested stock awards was approximately $197.3 million, which is expected to be recognized over a weighted average period of approximately 3.3 . Bonuses. We have bonus programs covering select employees, including senior management. Awards are based on the position and performance of the employee and the achievement of pre-established financial, operating and strategic objectives. The amounts charged to expense for bonuses were $363.6 million, $286.5 million and $248.1 million for the years ended December 31, 2018, 2017 and 2016, respectively. 401(k) Plan. Our CBRE 401(k) Plan (401(k) Plan) is a defined contribution savings plan that allows participant deferrals under Section 401(k) of the Internal Revenue Code (IRC). Most of our U.S. employees, other than qualified real estate agents having the status of independent contractors under section 3508 of the IRC of 1986, as amended, and non-plan electing unions are eligible to participate in the plan. The 401(k) Plan provides for participant contributions as well as a company match. A participant is allowed to contribute to the 401(k) Plan from 1% to 75% of his or her compensation, subject to limits imposed by applicable law. Effective January 1, 2007, all participants hired post January 1, 2007 vest in company match contributions 20% per year for each plan year they are employed. All participants hired before January 1, 2007 are immediately vested in company match contributions. For 2018, we contributed a 67% match on the first 6% of annual compensation for participants with an annual base salary of less than $100,000 and we contributed a 50% match on the first 6% of annual compensation for participants with an annual base salary of $100,000 or more (up to $150,000 of compensation). For both 2017 and 2016, we contributed a 50% match on the first 6% of annual compensation (up to $150,000 of compensation) deferred by each participant. In connection with the 401(k) Plan, we charged to expense $46.3 million, $38.8 million and $44.3 million for the years ended December 31, 2018, 2017 and 2016, respectively. Participants are entitled to invest up to 25% of their 401(k) account balance in shares of our common stock. As of December 31, 2018, approximately 1.3 million shares of our common stock were held as investments by participants in our 401(k) Plan. Pension Plans. We have two contributory defined benefit pension plans in the United Kingdom (U.K.). The London-based firm of Hillier Parker May & Rowden, which we acquired in 1998, had a contributory defined benefit pension plan. A subsidiary of Insignia, which we acquired in connection with the Insignia Acquisition in 2003, also had a contributory defined benefit pension plan in the U.K. Our subsidiaries based in the U.K. maintain the plans to provide retirement benefits to existing and former employees participating in these plans. With respect to these plans, our historical policy has been to contribute annually to the plans, an amount to fund pension liabilities as actuarially determined and as required by applicable laws and regulations. Our contributions to these plans are invested by the plan trustee and, if these investments do not perform well in the future, we may be required to provide additional contributions to cover any pension underfunding. Effective July 1, 2007, we reached agreements with the active members of these plans to freeze future pension plan benefits. In return, the active members became eligible to enroll in a defined contribution plan. As of December 31, 2018 and 2017, the fair values of pension plan assets were $274.4 million and $333.5 million, respectively, and the fair values of projected benefit obligations in aggregate were $387.4 million and $455.6 million, respectively. As a result, the plans were underfunded by approximately $113.0 million and $122.1 million at December 31, 2018 and 2017, respectively, and were recorded as net liabilities included in other long term liabilities in the accompanying consolidated balance sheets. Items not yet recognized as a component of net periodic pension cost (benefit) were $192.7 million and $194.3 million at December 31, 2018 and 2017, respectively, and were included in accumulated other comprehensive loss in the accompanying consolidated balance sheets. Net periodic pension cost (benefit) was not material for the years ended December 31, 2018, 2017 and 2016

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	14. Income Taxes The components of income before provision for income taxes consisted of the following (dollars in thousands): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1 ) (As Adjusted) (1) Domestic $ 807,590 $ 575,222 $ 536,709 Foreign 571,416 596,111 345,361 $ 1,379,006 $ 1,171,333 $ 882,070 Our tax provision (benefit) consisted of the following (dollars in thousands): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1 ) (As Adjusted) (1) Federal: Current $ 166,024 $ 275,475 $ 172,380 Deferred (7,667 ) 39,045 27,428 158,357 314,520 199,808 State: Current 43,320 21,212 20,946 Deferred (3,692 ) 5,573 375 39,628 26,785 21,321 Foreign: Current 149,194 123,840 94,910 Deferred (34,121 ) 2,612 (19,139 ) 115,073 126,452 75,771 $ 313,058 $ 467,757 $ 296,900 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. The following is a reconciliation stated as a percentage of pre-tax income of the U.S. statutory federal income tax rate to our effective tax rate: Year Ended December 31, 2018 2017 2016 Federal statutory tax rate 21 % 35 % 35 % State taxes, net of federal benefit 3 2 2 Non-deductible expenses 2 2 — Tax Reform 1 12 — Change in valuation allowance (1 ) (2 ) 2 Acquisition-related costs (2 ) — — Credits and exemptions (2 ) (3 ) (2 ) Foreign rate differential — (5 ) (2 ) Reserves for uncertain tax positions — (2 ) — Other 1 1 (1 ) Effective tax rate 23 % 40 % 34 % On December 22, 2017, the Tax Act was signed into law making significant changes to the IRC, including, but not limited to: (i) a U.S. corporate tax rate decrease from 35% to 21%, effective for tax years beginning after December 31, 2017; (ii) the transition of U.S. international taxation from a worldwide tax system to a territorial system; and (iii) a one-time transition tax (i.e. toll charge) on the mandatory deemed repatriation of cumulative foreign earnings as of December 31, 2017. In December 2017, the Securities and Exchange Commission (SEC) staff issued Staff Accounting Bulletin No. 118 (SAB 118), “ Income Tax Accounting Implications of the Tax Cuts and Jobs Act ,” which allows us to record provisional amounts during a measurement period not to extend beyond one year of the enactment date. Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118 The Tax Act requires us to pay U.S. income taxes on accumulated foreign subsidiary earnings not previously subject to U.S. income tax at a rate of 15.5% to the extent attributed to foreign cash and certain other net current assets, and 8% on the remainder. We recorded a provisional amount for our one-time transitional tax liability of $158.0 million for the year ended December 31, 2017 representing our estimate of the U.S. federal and state tax impact of the transition tax, partially offset by a net income tax benefit of $14.6 million related to the re-measurement of U.S. federal deferred tax assets and liabilities due to the re-measurement of net U.S. federal deferred tax assets and liabilities primarily related to a reduced U.S. federal statutory rate of 21% (after considering certain other measures of the Tax Act that affected our existing deferred tax assets). During 2018, we continued to analyze the impact of the Tax Act and interpreted the additional guidance issued by the U.S. Treasury Department, the Internal Revenue Service, and other standard-setting bodies. Our provision for income taxes for 2018 included a net expense true-up of $13.3 million associated with the Tax Act, including an additional $5.3 million charge related to the transition tax on unremitted earnings of our foreign operations and an $8.0 million reduction to the net income tax benefit related to the remeasurement of deferred taxes initially recorded in 2017, based upon our final analysis. As of December 31, 2018, we have completed our analysis and the final net expense associated with the Tax Act was $156.7 million. We were able to apply existing foreign income tax credits to reduce the amount payable associated with Tax Act. The federal tax liability for the transition tax can be paid in annual interest-free installments over a period of eight years through 2025, which we have elected to do. The state tax liability for the transition tax was required to be paid in full in 2018. As of December 31, 2018, the second installment due in 2019 of $7.4 million is included within income taxes payable and the remaining long-term taxes payable related to the Tax Act of $91.7 million is included within non-current tax liabilities in the accompanying consolidated balance sheets. The Tax Act also includes provisions for Global Intangible Low-Taxed Income (GILTI) wherein taxes on foreign earnings are imposed for more than a deemed return on tangible assets of foreign corporations. An accounting policy election allows to either: (i) account for GILTI as a component of tax expense in the period in which we are subject to the rules (the “period cost method”) or (ii) account for GILTI in our measurement of deferred taxes (the “deferred method”). Due to the complexity of the new GILTI tax rules, we did not elect a policy for the year ended December 31, 2017 as we continued to analyze our global income to determine whether we expected material tax liabilities resulting from the application of this provision and if so, whether and when to record related current and deferred income taxes and whether such amounts could be reasonably estimated. During 2018, as a result of completing our analysis of the Tax Act, we made an accounting policy election to account for GILTI using the period cost method. Cumulative tax effects of temporary differences are shown below at December 31, 2018 and 2017 (dollars in thousands): December 31, 2018 2017 (As Adjusted) (1) Asset (Liability) Bonus and deferred compensation $ 276,572 $ 208,198 Net operating losses (NOLs) and state tax credits 275,574 283,353 Bad debt and other reserves 57,506 56,313 Pension obligation 22,950 22,148 Investments 5,211 5,573 Tax effect on revenue items related to new revenue recognition guidance (38,510 ) (55,306 ) Property and equipment (49,935 ) (40,024 ) Unconsolidated affiliates and partnerships (64,448 ) 6,267 Capitalized costs and intangibles (289,674 ) (256,087 ) All other (2,457 ) (1,441 ) Net deferred tax assets before valuation allowance 192,789 228,994 Valuation allowance (248,511 ) (277,466 ) Net deferred tax (liabilities) assets $ (55,722 ) $ (48,472 ) (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. As of December 31, 2018, we had U.S. federal NOLs, net of related reserves for uncertain tax positions of approximately $72.7 million, translating to a deferred tax asset before valuation allowance of $15.3 million, which will begin to expire in 2027. As of December 31, 2018, there were also deferred tax assets before valuation allowances of approximately $3.5 million related to state NOLs as well as $255.9 million related to foreign NOLs. The state and foreign NOLs both begin to expire in 2019, but the majority carry forward indefinitely. The utilization of NOLs may be subject to certain limitations under U.S. federal, state and foreign laws. We have recorded a full valuation allowance for NOLs that we believe will not be fully utilized. We determined that as of December 31, 2018, $248.5 million of deferred tax assets do not satisfy the realization criteria set forth in Topic 740. Accordingly, a valuation allowance has been recorded for this amount. If released, the entire amount would result in a benefit to continuing operations. During the year ended December 31, 2018, our valuation allowance decreased by approximately $29.0 million. The decrease was driven by $11.8 million associated with foreign currency translation and tax rate changes, the release of valuation allowances of $11.6 million (due to current and forecasted earnings of our U.S. and foreign subsidiaries resulting in an expectation that the benefit for NOLs may be utilized before expiration), $5.5 million related to adjustments to both the valuation allowance and related deferred tax asset for foreign NOLs, $2.0 million related to foreign NOL utilization and $1.8 million of U.S. NOL utilization. These decreases were partially offset by a $3.7 million increase in valuation allowance related to current year increases in foreign NOLs. We believe it is more likely than not that future operations will generate sufficient taxable income to realize the benefit of the deferred tax assets recorded net of these valuation allowances. Our foreign subsidiaries have accumulated $2.1 billion of undistributed earnings for which we have not recorded a deferred tax liability. No additional income taxes have been provided for any remaining undistributed foreign earnings not subject to the transition tax, in connection with the enactment of the Tax Act, or any additional outside basis difference inherent in these entities, as these amounts continue to be indefinitely reinvested in foreign operations. While federal and state current income tax expense The total amount of gross unrecognized tax benefits was approximately $95.0 million and $35.8 million as of December 31, 2018 and 2017, respectively. The total amount of unrecognized tax benefits that would affect our effective tax rate, if recognized, is $50.2 million ($49.2 million, net of federal benefit received from state positions) and $18.8 million ($18.0 million, net of federal benefit received from state positions) as of December 31, 2018 and 2017, respectively. A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2018 and 2017 is as follows (dollars in thousands): Year Ended December 31, 2018 2017 Beginning balance, unrecognized tax benefits $ (35,826 ) $ (94,915 ) Gross increases - tax positions in prior period (49,412 ) (1,400 ) Gross decreases - tax positions in prior period — 23,896 Gross increases - current-period tax positions (18,861 ) (4,142 ) Decreases relating to settlements 4,619 34,259 Reductions as a result of lapse of statute of limitations 4,531 6,497 Foreign exchange movement (13 ) (21 ) Ending balance, unrecognized tax benefits $ (94,962 ) $ (35,826 ) During the year ended December 31, 2018, we released $4.5 million of gross unrecognized tax benefits primarily due to expiration of the U.S. federal statute of limitations related to the 2014 tax year. As a result, we recognized $3.1 million of income tax benefits related to decreases in tax positions and $0.4 million of income tax benefits related to interest and penalties. We believe the amount of gross unrecognized tax benefits that will be settled during the next twelve months due to filing amended returns and settling ongoing exams cannot be reasonably estimated but will not be significant. Our continuing practice is to recognize potential accrued interest and/or penalties related to income tax matters within income tax expense. During the years ended December 31, 2018, 2017 and 2016, we accrued an additional $0.6 million, $1.0 million and $2.9 million, respectively, in interest and penalties associated with uncertain tax positions. As of December 31, 2018, and 2017, we have recognized a liability for interest and penalties of $4.0 million ($3.5 million, net of related federal benefit received from interest expense) and $3.9 million ($3.4 million, net of related federal benefit received from interest expense), respectively. We conduct business globally and, as a result, one or more of our subsidiaries files income tax returns in the U.S. federal jurisdiction and in multiple state, local and foreign jurisdictions. We are no longer open to assessment by the U.S. Internal Revenue Service for years prior to 2015. With limited exception, our significant state and foreign tax jurisdictions are no longer subject to audit by the various tax authorities for tax years prior to 2011.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2018
Equity [Abstract]
Stockholders' Equity	15. Stockholders’ Equity Our board of directors is authorized, subject to any limitations imposed by law, without the approval of our stockholders, to issue a total of 25,000,000 shares of preferred stock, in one or more series, with each such series having rights and preferences including voting rights, dividend rights, conversion rights, redemption privileges and liquidation preferences, as our board of directors may determine. On October 27, 2016, we announced that our board of directors had authorized the company to repurchase up to an aggregate of $250.0 million of our Class A common stock over three years. During the year ended December 31, 2018, we spent $161.0 million to repurchase 3,980,656 shares of our Class A common stock with an average price paid per share of $40.43. No shares were repurchased during the years ended December 31, 2017 and 2016.

Income Per Share Information

Income Per Share Information	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Income Per Share Information	16. The following is a calculation of income per share (dollars in thousands, except share data): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1) (As Adjusted) (1) Basic Income Per Share Net income attributable to CBRE Group, Inc. shareholders $ 1,063,219 $ 697,109 $ 573,079 Weighted average shares outstanding for basic income per share 339,321,056 337,658,017 335,414,831 Basic income per share attributable to CBRE Group, Inc. shareholders $ 3.13 $ 2.06 $ 1.71 Diluted Income Per Share Net income attributable to CBRE Group, Inc. shareholders $ 1,063,219 $ 697,109 $ 573,079 Weighted average shares outstanding for basic income per share 339,321,056 337,658,017 335,414,831 Dilutive effect of contingently issuable shares 3,801,293 3,121,987 2,982,431 Dilutive effect of stock options 392 3,552 27,301 Weighted average shares outstanding for diluted income per share 343,122,741 340,783,556 338,424,563 Diluted income per share attributable to CBRE Group, Inc. shareholders $ 3.10 $ 2.05 $ 1.69 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. For the years ended December 31, 2018, 2017 and 2016, 259,274, 621,805 and 1,833,941, respectively, of contingently issuable shares were excluded from the computation of diluted income per share because their inclusion would have had an anti-dilutive effect.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	12 Months Ended
	Dec. 31, 2018
Revenue From Contract With Customer [Abstract]
Revenue from Contracts with Customers	17. Revenue from Contracts with Customers Disaggregated Revenue The following tables represent a disaggregation of revenue from contracts with customers for the years ended December 31, 2018, 2017 and 2016 by type of service and business segment (dollars in thousands): Year Ended December 31, 2018 Americas EMEA APAC Global Investment Management Development Services Consolidated Topic 606 Revenue: Occupier outsourcing $ 7,797,742 $ 4,030,257 $ 1,076,742 $ — $ — $ 12,904,741 Leasing 2,423,248 526,372 421,255 — 4,683 3,375,558 Sales 1,189,368 428,810 300,312 — 650 1,919,140 Property management 709,213 244,370 281,882 — 8,666 1,244,131 Valuation 261,559 187,515 111,741 — — 560,815 Commercial mortgage origination (1) 125,731 5,768 2,330 — — 133,829 Investment management — — — 434,405 — 434,405 Development services — — — — 86,320 86,320 Topic 606 Revenue 12,506,861 5,423,092 2,194,262 434,405 100,319 20,658,939 Out of Scope of Topic 606 Revenue: Commercial mortgage origination 402,607 — — — — 402,607 Loan servicing 172,096 10,755 570 — — 183,421 Other revenue 50,342 32,076 12,703 — — 95,121 Total Out of Scope of Topic 606 Revenue 625,045 42,831 13,273 — — 681,149 Total revenue $ 13,131,906 $ 5,465,923 $ 2,207,535 $ 434,405 $ 100,319 $ 21,340,088 Year Ended December 31, 2017 (As Adjusted) (2) Americas EMEA APAC Global Investment Management Development Services Consolidated Topic 606 Revenue: Occupier outsourcing $ 7,089,660 $ 3,101,518 $ 954,396 $ — $ — $ 11,145,574 Leasing 2,054,872 446,446 357,983 — 4,051 2,863,352 Sales 1,103,862 397,130 304,344 — 977 1,806,313 Property management 660,147 243,630 237,631 — 13,914 1,155,322 Valuation 245,179 165,082 117,377 — — 527,638 Commercial mortgage origination (1) 104,565 5,447 2,119 — — 112,131 Investment management — — — 377,644 — 377,644 Development services — — — — 60,513 60,513 Topic 606 Revenue 11,258,285 4,359,253 1,973,850 377,644 79,455 18,048,487 Out of Scope of Topic 606 Revenue: Commercial mortgage origination 338,390 — — — — 338,390 Loan servicing 146,460 10,989 — — — 157,449 Other revenue 48,242 26,583 9,636 — — 84,461 Total Out of Scope of Topic 606 Revenue 533,092 37,572 9,636 — — 580,300 Total revenue $ 11,791,377 $ 4,396,825 $ 1,983,486 $ 377,644 $ 79,455 $ 18,628,787 (1) We earn fees for arranging financing for borrowers with third-party lender contacts. Such fees are in scope of Topic 606. (2) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Year Ended December 31, 2016 (As Adjusted) (2) Americas EMEA APAC Global Investment Management Development Services Consolidated Topic 606 Revenue: Occupier outsourcing $ 6,570,559 $ 2,975,106 $ 828,194 $ — $ — $ 10,373,859 Leasing 1,924,361 411,005 312,184 — 4,436 2,651,986 Sales 1,103,452 334,398 261,320 — 1,333 1,700,503 Property management 621,452 221,904 203,176 — 9,502 1,056,034 Valuation 245,389 148,856 110,125 — — 504,370 Commercial mortgage origination (1) 112,797 2,881 2,136 — — 117,814 Investment management — — — 369,800 — 369,800 Development services — — — — 55,638 55,638 Topic 606 Revenue 10,578,010 4,094,150 1,717,135 369,800 70,909 16,830,004 Out of Scope of Topic 606 Revenue: Commercial mortgage origination 330,352 — — — — 330,352 Loan servicing 111,373 11,144 — — — 122,517 Other revenue 50,230 23,612 12,393 — — 86,235 Total Out of Scope of Topic 606 Revenue 491,955 34,756 12,393 — — 539,104 Total revenue $ 11,069,965 $ 4,128,906 $ 1,729,528 $ 369,800 $ 70,909 $ 17,369,108 (1) We earn fees for arranging financing for borrowers with third-party lender contacts. Such fees are in scope of Topic 606. (2) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Contract Assets and Liabilities We had contract assets totaling $381.8 million ($307.0 million of which was current) and $330.9 million ($273.1 million of which was current) as of December 31, 2018 and 2017, respectively. During the year ended December 31, 2018, our contract assets increased by $50.9 million, primarily due to an increase in contract assets in our leasing business. We had contract liabilities totaling $92.5 million ($82.2 million of which was current) and $100.6 million (all of which was current) as of December 31, 2018 and 2017, respectively. During the year ended December 31, 2018, we recognized revenue of $80.5 million that was included in the contract liability balance at December 31, 2017. Contract Costs Within our Occupier Outsourcing business line, we incur transition costs to fulfil contracts prior to services being rendered. We capitalized $45.7 million, $31.9 million and $26.1 million, respectively, of transition costs during the years ended December 31, 2018, 2017 and 2016. We recorded amortization of transition costs of $23.4 million, $19.2 million and $11.9 million, respectively, during the years ended December 31, 2018, 2017 and 2016. No impairment loss in relation to the costs capitalized was recorded during the years ended December 31, 2018, 2017 or 2016.

Segments

Segments	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Segments	18. Segments We report our operations through the following segments: (1) Americas, (2) EMEA, (3) Asia Pacific, (4) Global Investment Management; and (5) Development Services. Summarized financial information by segment is as follows (dollars in thousands): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1) (As Adjusted) (1) (2) Revenue Americas $ 13,131,906 $ 11,791,377 $ 11,069,965 EMEA 5,465,923 4,396,825 4,128,906 Asia Pacific 2,207,535 1,983,486 1,729,528 Global Investment Management 434,405 377,644 369,800 Development Services 100,319 79,455 70,909 Total revenue $ 21,340,088 $ 18,628,787 $ 17,369,108 Depreciation and Amortization Americas $ 327,556 $ 289,338 $ 254,118 EMEA 80,290 72,322 66,619 Asia Pacific 20,297 18,258 17,810 Global Investment Management 23,017 24,123 25,911 Development Services 828 2,073 2,469 Total depreciation and amortization $ 451,988 $ 406,114 $ 366,927 Year Ended December 31, 2018 2017 2016 (As Adjusted) (1) (As Adjusted) (1) (2) Equity Income from Unconsolidated Subsidiaries Americas $ 14,177 $ 18,789 $ 17,892 EMEA 1,523 1,553 1,817 Asia Pacific 433 397 223 Global Investment Management 6,131 7,923 7,243 Development Services 302,400 181,545 170,176 Total equity income from unconsolidated subsidiaries $ 324,664 $ 210,207 $ 197,351 Adjusted EBITDA Americas $ 1,111,014 $ 1,011,643 $ 950,573 EMEA 329,522 309,233 272,894 Asia Pacific 197,684 180,043 142,299 Global Investment Management 78,469 94,373 83,150 Development Services 188,479 121,482 113,431 Total Adjusted EBITDA $ 1,905,168 $ 1,716,774 $ 1,562,347 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information (2) In 2017, we changed the presentation of the operating results of one of our emerging businesses among our regional services reporting segments. 2016 amounts were reclassified to conform with the 2017 presentation. This change had no impact on our consolidated results. Adjusted EBITDA is the measure reported to the chief operating decision maker for purposes of making decisions about allocating resources to each segment and assessing performance of each segment. EBITDA represents earnings before net interest expense, write-off of financing costs on extinguished debt, income taxes, depreciation and amortization. Amounts shown for adjusted EBITDA further remove (from EBITDA) the impact of certain cash and non-cash items related to acquisitions, costs associated with our reorganization, including cost-savings initiatives, certain carried interest incentive compensation reversal to align with the timing of associated revenue and other non-recurring costs. Adjusted EBITDA is calculated as follows (dollars in thousands): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1) (As Adjusted) (1) Net income attributable to CBRE Group, Inc. $ 1,063,219 $ 697,109 $ 573,079 Add: Depreciation and amortization 451,988 406,114 366,927 Interest expense 107,270 136,814 144,851 Write-off of financing costs on extinguished debt 27,982 — — Provision for income taxes 313,058 467,757 296,900 Less: Interest income 8,585 9,853 8,051 EBITDA 1,954,932 1,697,941 1,373,706 Adjustments: Costs associated with our reorganization, including cost-savings initiatives (2) 37,925 — — Integration and other costs related to acquisitions 9,124 27,351 125,743 Costs incurred in connection with litigation settlement 8,868 — — Carried interest incentive compensation reversal to align with the timing of associated revenue (5,261 ) (8,518 ) (15,558 ) One-time gain associated with remeasuring an investment in an unconsolidated subsidiary to fair value as of the date the remaining controlling interest was acquired (100,420 ) — — Cost-elimination expenses (3) — — 78,456 Adjusted EBITDA $ 1,905,168 $ 1,716,774 $ 1,562,347 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. (2) Primarily represents severance costs related to headcount reductions in connection with our reorganization announced in the third quarter of 2018 that became effective January 1, 2019. (3) Represents cost-elimination expenses relating to a program initiated in the fourth quarter of 2015 and completed in the third quarter of 2016 (our cost-elimination project) to reduce the company’s global cost structure after several years of significant revenue and related cost growth. Cost-elimination expenses incurred during the year ended December 31, 2016 consisted of $73.6 million of severance costs related to headcount reductions in connection with the program and $4.9 million of third-party contract termination costs. The total amount for each period does have a cash impact. Year Ended December 31, 2018 2017 2016 Capital Expenditures Americas $ 131,055 $ 127,135 $ 134,046 EMEA 63,947 28,716 35,452 Asia Pacific 17,122 19,360 19,179 Global Investment Management 15,348 2,776 2,273 Development Services 331 55 255 Total capital expenditures $ 227,803 $ 178,042 $ 191,205 December 31, 2018 2017 (As Adjusted) (1) Identifiable Assets Americas $ 7,432,532 $ 5,808,332 EMEA 3,168,050 3,013,586 Asia Pacific 978,331 894,066 Global Investment Management 1,018,999 1,075,691 Development Services 166,864 176,971 Corporate 692,017 749,750 Total identifiable assets $ 13,456,793 $ 11,718,396 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Identifiable assets by segment are those assets used in our operations in each segment. Corporate identifiable assets primarily include cash and cash equivalents available for general corporate use and net deferred tax assets. December 31, 2018 2017 Investments in Unconsolidated Subsidiaries Americas $ 41,446 $ 39,105 EMEA 864 852 Asia Pacific 6,845 6,581 Global Investment Management 77,926 83,430 Development Services 89,093 108,033 Total investments in unconsolidated subsidiaries $ 216,174 $ 238,001 Geographic Information Revenue in the table below is allocated based upon the country in which services are performed (dollars in thousands): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1) (As Adjusted) (1) Revenue United States $ 12,264,188 $ 10,954,608 $ 10,434,782 United Kingdom 2,586,890 2,242,973 2,150,428 All other countries 6,489,010 5,431,206 4,783,898 Total revenue $ 21,340,088 $ 18,628,787 $ 17,369,108 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. The long-lived assets in the table below are comprised of net property and equipment (dollars in thousands). December 31, 2018 2017 Property and Equipment, Net United States $ 512,110 $ 432,102 United Kingdom 71,119 61,335 All other countries 138,463 124,302 Total property and equipment, net $ 721,692 $ 617,739 On August 17, 2018, we announced a new organization structure that became effective on January 1, 2019. Under the new structure, we will organize our operations around, and publicly report our financial results on, three global business segments: (1) Advisory Services, (2) Global Workplace Solutions and (3) Real Estate Investments. For 2018, we are reporting our financial results under our business segments as they existed throughout the year.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions	19. Related Party Transactions The accompanying consolidated balance sheets include loans to related parties, primarily employees other than our executive officers, of $350.1 million and $291.2 million as of December 31, 2018 and 2017, respectively. The majority of these loans represent sign-on and retention bonuses issued or assumed in connection with acquisitions and prepaid commissions as well as prepaid retention and recruitment awards issued to employees. These loans are at varying principal amounts, bear interest at rates up to 2.89% per annum and mature on various dates through 2028.

Guarantor and Nonguarantor Fina

Guarantor and Nonguarantor Financial Statements	12 Months Ended
	Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Guarantor and Nonguarantor Financial Statements	20. Guarantor and Nonguarantor Financial Statements The following condensed consolidating financial information includes condensed consolidating balance sheets as of December 31, 2018 and 2017, condensed consolidating statements of operations, condensed consolidating statements of comprehensive income (loss) and condensed consolidating statements of cash flows for the years ended December 31, 2018, 2017 and 2016 of: • CBRE Group, Inc., as the parent; CBRE Services, as the subsidiary issuer; the guarantor subsidiaries; the nonguarantor subsidiaries; • Elimination entries necessary to consolidate CBRE Group, Inc., as the parent, with CBRE Services and its guarantor and nonguarantor subsidiaries; and • CBRE Group, Inc., on a consolidated basis. Investments in consolidated subsidiaries are presented using the equity method of accounting. The principal elimination entries eliminate investments in consolidated subsidiaries and intercompany balances and transactions. Condensed Consolidating Balance Sheet As of December 31, 2018 Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total ASSETS Current Assets: Cash and cash equivalents $ 7 $ 34,063 $ 261,181 $ 481,968 $ — $ 777,219 Restricted cash — — 13,767 72,958 — 86,725 Receivables, net — 5 1,340,120 2,328,466 — 3,668,591 Warehouse receivables (1) — — 664,095 678,373 — 1,342,468 Contract assets — — 289,214 17,806 — 307,020 Prepaid expenses — — 122,305 132,587 — 254,892 Income taxes receivable 6,099 — 18,992 52,692 (6,099 ) 71,684 Other current assets — — 56,853 188,758 — 245,611 Total Current Assets 6,106 34,068 2,766,527 3,953,608 (6,099 ) 6,754,210 Property and equipment, net — — 512,110 209,582 — 721,692 Goodwill — — 2,224,909 1,427,400 — 3,652,309 Other intangible assets, net — — 835,270 606,038 — 1,441,308 Investments in unconsolidated subsidiaries — — 170,698 45,476 — 216,174 Investments in consolidated subsidiaries 6,759,815 5,595,831 3,228,512 — (15,584,158 ) — Intercompany loan receivable — 2,440,775 700,000 711,244 (3,852,019 ) — Deferred tax assets, net — — 2,666 51,755 (2,718 ) 51,703 Other assets, net — 18,257 483,790 117,350 — 619,397 Total Assets $ 6,765,921 $ 8,088,931 $ 10,924,482 $ 7,122,453 $ (19,444,994 ) $ 13,456,793 LIABILITIES AND EQUITY Current Liabilities: Accounts payable and accrued expenses $ 40 $ 17,450 $ 655,582 $ 1,246,755 $ — $ 1,919,827 Accrued bonus and profit sharing — — 685,521 503,874 — 1,189,395 Compensation and employee benefits payable — — 662,196 458,983 — 1,121,179 Contract liabilities — — 41,045 41,182 — 82,227 Income taxes payable — 720 6,417 67,062 (6,099 ) 68,100 Short-term borrowings: Warehouse lines of credit (which fund loans that U.S. Government Sponsored Enterprises have committed to purchase) (1) — — 657,731 671,030 — 1,328,761 Total short-term borrowings — — 657,731 671,030 — 1,328,761 Current maturities of long-term debt — — 39 3,107 — 3,146 Other current liabilities — 1,070 70,202 19,473 — 90,745 Total Current Liabilities 40 19,240 2,778,733 3,011,466 (6,099 ) 5,803,380 Long-Term Debt, net: Long-term debt, net — 1,309,876 18 457,366 — 1,767,260 Intercompany loan payable 1,827,084 — 2,024,935 — (3,852,019 ) — Total Long-Term Debt, net 1,827,084 1,309,876 2,024,953 457,366 (3,852,019 ) 1,767,260 Non-current tax liabilities — — 164,857 7,769 — 172,626 Deferred tax liabilities, net — — — 110,143 (2,718 ) 107,425 Other liabilities — — 360,108 236,092 — 596,200 Total Liabilities 1,827,124 1,329,116 5,328,651 3,822,836 (3,860,836 ) 8,446,891 Commitments and contingencies — — — — — — Equity: CBRE Group, Inc. Stockholders’ Equity 4,938,797 6,759,815 5,595,831 3,228,512 (15,584,158 ) 4,938,797 Non-controlling interests — — — 71,105 — 71,105 Total Equity 4,938,797 6,759,815 5,595,831 3,299,617 (15,584,158 ) 5,009,902 Total Liabilities and Equity $ 6,765,921 $ 8,088,931 $ 10,924,482 $ 7,122,453 $ (19,444,994 ) $ 13,456,793 (1) Although CBRE Capital Markets is included among our domestic subsidiaries that jointly and severally guarantee our 4.875% senior notes, 5.25% senior notes and our 2017 Credit Agreement, a substantial majority of warehouse receivables funded under JP Morgan, TD Bank, Fannie Mae ASAP, Capital One and BofA lines of credit are pledged to JP Morgan, TD Bank, Fannie Mae, Capital One and BofA, and accordingly, are not included as collateral for these notes or our other outstanding debt. Condensed Consolidating Balance Sheet As of December 31, 2017 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total ASSETS Current Assets: Cash and cash equivalents $ 7 $ 15,604 $ 112,048 $ 624,115 $ — $ 751,774 Restricted cash — — 2,095 70,950 — 73,045 Receivables, net — — 990,923 2,121,366 — 3,112,289 Warehouse receivables (2) — — 479,628 448,410 — 928,038 Contract assets — — 263,756 9,297 — 273,053 Prepaid expenses — — 81,106 134,230 — 215,336 Income taxes receivable 2,162 — — 49,628 (2,162 ) 49,628 Other current assets — — 50,556 176,865 — 227,421 Total Current Assets 2,169 15,604 1,980,112 3,634,861 (2,162 ) 5,630,584 Property and equipment, net — — 431,755 185,984 — 617,739 Goodwill — — 1,774,529 1,480,211 — 3,254,740 Other intangible assets, net — — 751,930 647,182 — 1,399,112 Investments in unconsolidated subsidiaries — — 197,395 40,606 — 238,001 Investments in consolidated subsidiaries 5,551,781 4,930,109 3,066,303 — (13,548,193 ) — Intercompany loan receivable — 2,621,330 700,000 — (3,321,330 ) — Deferred tax assets, net — — 5,300 98,746 (5,300 ) 98,746 Other assets, net — 22,810 348,191 108,473 — 479,474 Total Assets $ 5,553,950 $ 7,589,853 $ 9,255,515 $ 6,196,063 $ (16,876,985 ) $ 11,718,396 LIABILITIES AND EQUITY Current Liabilities: Accounts payable and accrued expenses $ — $ 29,708 $ 404,367 $ 1,139,597 $ — $ 1,573,672 Accrued bonus and profit sharing — — 590,534 487,811 — 1,078,345 Compensation and employee benefits payable — 626 479,306 424,502 — 904,434 Contract liabilities — — 42,994 57,621 — 100,615 Income taxes payable — 3,314 13,704 55,778 (2,162 ) 70,634 Short-term borrowings: Warehouse lines of credit (which fund loans that U.S. Government Sponsored Enterprises have committed to purchase) (2) — — 474,195 436,571 — 910,766 Other — — 16 — — 16 Total short-term borrowings — — 474,211 436,571 — 910,782 Current maturities of long-term debt — — — 8 — 8 Other current liabilities — 55 56,260 18,139 — 74,454 Total Current Liabilities — 33,703 2,061,376 2,620,027 (2,162 ) 4,712,944 Long-Term Debt, net: Long-term debt, net — 1,999,603 — — — 1,999,603 Intercompany loan payable 1,439,454 — 1,798,550 83,326 (3,321,330 ) — Total Long-Term Debt, net 1,439,454 1,999,603 1,798,550 83,326 (3,321,330 ) 1,999,603 Non-current tax liabilities — — 135,396 5,396 — 140,792 Deferred tax liabilities, net — — 29,785 122,733 (5,300 ) 147,218 Other liabilities — 4,766 300,299 238,160 — 543,225 Total Liabilities 1,439,454 2,038,072 4,325,406 3,069,642 (3,328,792 ) 7,543,782 Commitments and contingencies — — — — — — Equity: CBRE Group, Inc. Stockholders’ Equity 4,114,496 5,551,781 4,930,109 3,066,303 (13,548,193 ) 4,114,496 Non-controlling interests — — — 60,118 — 60,118 Total Equity 4,114,496 5,551,781 4,930,109 3,126,421 (13,548,193 ) 4,174,614 Total Liabilities and Equity $ 5,553,950 $ 7,589,853 $ 9,255,515 $ 6,196,063 $ (16,876,985 ) $ 11,718,396 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. (2) Although CBRE Capital Markets is included among our domestic subsidiaries that jointly and severally guarantee our 5.00% senior notes, 4.875% senior notes, 5.25% senior notes and our 2015 Credit Agreement, a substantial majority of warehouse receivables funded under BofA, Fannie Mae ASAP, JP Morgan, Capital One and TD Bank lines of credit are pledged to BofA, Fannie Mae, JP Morgan, Capital One and TD Bank, and accordingly, are not included as collateral for these notes or our other outstanding debt. Condensed Consolidating Statement of Operations For the Year Ended December 31, 2018 Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Revenue $ — $ — $ 11,998,469 $ 9,341,619 $ — $ 21,340,088 Costs and expenses: Cost of services — — 9,513,947 6,935,265 — 16,449,212 Operating, administrative and other 24,523 1,156 1,773,860 1,566,234 — 3,365,773 Depreciation and amortization — — 271,378 180,610 — 451,988 Total costs and expenses 24,523 1,156 11,559,185 8,682,109 — 20,266,973 Gain on disposition of real estate — — 7,705 7,169 — 14,874 Operating (loss) income (24,523 ) (1,156 ) 446,989 666,679 — 1,087,989 Equity income from unconsolidated subsidiaries — — 323,080 1,584 — 324,664 Other income (loss) — 1 103,657 (10,638 ) — 93,020 Interest income — 134,259 6,805 214,780 (347,259 ) 8,585 Interest expense — 102,228 328,638 23,663 (347,259 ) 107,270 Write-off of financing costs on extinguished debt — 27,982 — — — 27,982 Royalty and management service (income) expense — — (111,883 ) 111,883 — — Income from consolidated subsidiaries 1,081,643 1,079,469 579,523 — (2,740,635 ) — Income before (benefit of) provision for income taxes 1,057,120 1,082,363 1,243,299 736,859 (2,740,635 ) 1,379,006 (Benefit of) provision for income taxes (6,099 ) 720 163,830 154,607 — 313,058 Net income 1,063,219 1,081,643 1,079,469 582,252 (2,740,635 ) 1,065,948 Less: Net income attributable to non-controlling interests — — — 2,729 — 2,729 Net income attributable to CBRE Group, Inc. $ 1,063,219 $ 1,081,643 $ 1,079,469 $ 579,523 $ (2,740,635 ) $ 1,063,219 Condensed Consolidating Statement of Operations For the Year Ended December 31, 2017 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Revenue $ — $ — $ 10,702,005 $ 7,926,782 $ — $ 18,628,787 Costs and expenses: Cost of services — — 8,517,114 5,787,985 — 14,305,099 Operating, administrative and other 5,661 1,972 1,485,605 1,365,482 — 2,858,720 Depreciation and amortization — — 239,863 166,251 — 406,114 Total costs and expenses 5,661 1,972 10,242,582 7,319,718 — 17,569,933 Gain on disposition of real estate — — 6,037 13,791 — 19,828 Operating (loss) income (5,661 ) (1,972 ) 465,460 620,855 — 1,078,682 Equity income from unconsolidated subsidiaries — — 206,655 3,552 — 210,207 Other income — 1 22 9,382 — 9,405 Interest income — 143,425 5,453 4,400 (143,425 ) 9,853 Interest expense — 132,777 115,947 31,515 (143,425 ) 136,814 Royalty and management service expense (income) — — 15,950 (15,950 ) — — Income from consolidated subsidiaries 700,608 695,245 461,769 — (1,857,622 ) — Income before (benefit of) provision for income taxes 694,947 703,922 1,007,462 622,624 (1,857,622 ) 1,171,333 (Benefit of) provision for income taxes (2,162 ) 3,314 312,217 154,388 — 467,757 Net income 697,109 700,608 695,245 468,236 (1,857,622 ) 703,576 Less: Net income attributable to non-controlling interests — — — 6,467 — 6,467 Net income attributable to CBRE Group, Inc. $ 697,109 $ 700,608 $ 695,245 $ 461,769 $ (1,857,622 ) $ 697,109 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Condensed Consolidating Statement of Operations For the Year Ended December 31, 2016 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Revenue $ — $ — $ 10,169,361 $ 7,199,747 $ — $ 17,369,108 Costs and expenses: Cost of services — — 8,133,496 5,287,415 — 13,420,911 Operating, administrative and other 5,003 (8,231 ) 1,454,435 1,329,094 — 2,780,301 Depreciation and amortization — — 225,552 141,375 — 366,927 Total costs and expenses 5,003 (8,231 ) 9,813,483 6,757,884 — 16,568,139 Gain on disposition of real estate — — 3,669 12,193 — 15,862 Operating (loss) income (5,003 ) 8,231 359,547 454,056 — 816,831 Equity income from unconsolidated subsidiaries — — 192,811 4,540 — 197,351 Other income (loss) — 1 (89 ) 4,776 — 4,688 Interest income — 131,132 50,272 5,146 (178,499 ) 8,051 Interest expense — 184,738 97,815 40,797 (178,499 ) 144,851 Royalty and management service (income) expense — — (39,182 ) 39,182 — — Income from consolidated subsidiaries 576,167 604,177 242,732 — (1,423,076 ) — Income before (benefit of) provision for income taxes 571,164 558,803 786,640 388,539 (1,423,076 ) 882,070 (Benefit of) provision for income taxes (1,915 ) (17,364 ) 182,463 133,716 — 296,900 Net income 573,079 576,167 604,177 254,823 (1,423,076 ) 585,170 Less: Net income attributable to non-controlling interests — — — 12,091 — 12,091 Net income attributable to CBRE Group, Inc. $ 573,079 $ 576,167 $ 604,177 $ 242,732 $ (1,423,076 ) $ 573,079 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Condensed Consolidating Statement of Comprehensive Income For the Year Ended December 31, 2018 Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Net income $ 1,063,219 $ 1,081,643 $ 1,079,469 $ 582,252 $ (2,740,635 ) $ 1,065,948 Other comprehensive income (loss): Foreign currency translation loss — — — (161,384 ) — (161,384 ) Adoption of Accounting Standards Update 2016-01, net — — (3,964 ) — — (3,964 ) Amounts reclassified from accumulated other comprehensive loss to interest expense, net — 2,439 — — — 2,439 Unrealized gains on interest rate swaps, net — 708 — — — 708 Unrealized holding losses on available for sale debt securities, net — — (971 ) — — (971 ) Pension liability adjustments, net — — — 1,315 — 1,315 Other, net — — 7 (5,077 ) — (5,070 ) Total other comprehensive income (loss) — 3,147 (4,928 ) (165,146 ) — (166,927 ) Comprehensive income 1,063,219 1,084,790 1,074,541 417,106 (2,740,635 ) 899,021 Less: Comprehensive income attributable to non-controlling interests — — — 1,657 — 1,657 Comprehensive income attributable to CBRE Group, Inc. $ 1,063,219 $ 1,084,790 $ 1,074,541 $ 415,449 $ (2,740,635 ) $ 897,364 Condensed Consolidating Statement of Comprehensive Income For the Year Ended December 31, 2017 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Net income $ 697,109 $ 700,608 $ 695,245 $ 468,236 $ (1,857,622 ) $ 703,576 Other comprehensive (loss) income: Foreign currency translation gain — — — 218,001 — 218,001 Amounts reclassified from accumulated other comprehensive loss to interest expense, net — 4,964 — — — 4,964 Unrealized gains on interest rate swaps, net — 585 — — — 585 Unrealized holding gains on available for sale debt securities, net — — 2,557 180 — 2,737 Pension liability adjustments, net — — — 12,701 — 12,701 Other, net (2 ) — (21 ) 387 — 364 Total other comprehensive (loss) income (2 ) 5,549 2,536 231,269 — 239,352 Comprehensive income 697,107 706,157 697,781 699,505 (1,857,622 ) 942,928 Less: Comprehensive income attributable to non-controlling interests — — — 6,879 — 6,879 Comprehensive income attributable to CBRE Group, Inc. $ 697,107 $ 706,157 $ 697,781 $ 692,626 $ (1,857,622 ) $ 936,049 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Condensed Consolidating Statement of Comprehensive Income (Loss ) For the Year Ended December 31, 2016 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Net income $ 573,079 $ 576,167 $ 604,177 $ 254,823 $ (1,423,076 ) $ 585,170 Other comprehensive income (loss): Foreign currency translation loss — — — (235,614 ) — (235,614 ) Amounts reclassified from accumulated other comprehensive loss to interest expense, net — 6,839 — — — 6,839 Unrealized losses on interest rate swaps, net — (1,431 ) — — — (1,431 ) Unrealized holding gains on available for sale debt securities, net — — 180 204 — 384 Pension liability adjustments, net — — — (63,749 ) — (63,749 ) Other, net — — (759 ) (11,332 ) — (12,091 ) Total other comprehensive income (loss) — 5,408 (579 ) (310,491 ) — (305,662 ) Comprehensive income (loss) 573,079 581,575 603,598 (55,668 ) (1,423,076 ) 279,508 Less: Comprehensive income attributable to non-controlling interests — — — 12,108 — 12,108 Comprehensive income (loss) attributable to CBRE Group, Inc. $ 573,079 $ 581,575 $ 603,598 $ (67,776 ) $ (1,423,076 ) $ 267,400 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Condensed Consolidating Statement of Cash Flow For the Year Ended December 31, 2018 Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Consolidated Total CASH FLOWS PROVIDED BY OPERATING ACTIVITIES: $ 105,850 $ 21,834 $ 429,540 $ 574,025 $ 1,131,249 CASH FLOWS FROM INVESTING ACTIVITIES: Capital expenditures — — (140,670 ) (87,133 ) (227,803 ) Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired — — (305,315 ) (17,258 ) (322,573 ) Contributions to unconsolidated subsidiaries — — (51,046 ) (11,756 ) (62,802 ) Distributions from unconsolidated subsidiaries — — 57,269 4,440 61,709 Net proceeds from disposition of real estate held for investment — — — 14,174 14,174 Purchase of equity securities — — (21,402 ) — (21,402 ) Proceeds from sale of equity securities — — 16,314 — 16,314 Purchase of available for sale debt securities — — (23,360 ) — (23,360 ) Proceeds from the sale of available for sale debt securities — — 5,792 — 5,792 Other investing activities, net — — 2,793 (3,526 ) (733 ) Net cash used in investing activities — — (459,625 ) (101,059 ) (560,684 ) CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from senior term loans — 550,000 — 452,745 1,002,745 Repayment of senior term loans — (450,000 ) — — (450,000 ) Proceeds from revolving credit facility — 3,258,000 — — 3,258,000 Repayment of revolving credit facility — (3,258,000 ) — — (3,258,000 ) Repayment of 5.00% senior notes (including premium) — (820,000 ) — — (820,000 ) Proceeds from notes payable on real estate — — — 7,599 7,599 Repayment of notes payable on real estate — — — (19,058 ) (19,058 ) Repayment of debt assumed in acquisition of FacilitySource — — (26,295 ) — (26,295 ) Repurchase of common stock (161,034 ) — — — (161,034 ) Acquisition of businesses (cash paid for acquisitions more than three months after purchase date) — — (16,774 ) (1,886 ) (18,660 ) Units repurchased for payment of taxes on equity awards (29,386 ) — — — (29,386 ) Non-controlling interest contributions — — — 25,355 25,355 Non-controlling interest distributions — — — (13,413 ) (13,413 ) Payment of financing costs — (212 ) — (1,876 ) (2,088 ) Decrease (increase) in intercompany receivables, net 84,213 716,837 233,975 (1,035,025 ) — Other financing activities, net 357 — (16 ) (2,706 ) (2,365 ) Net cash (used in) provided by financing activities (105,850 ) (3,375 ) 190,890 (588,265 ) (506,600 ) Effect of currency exchange rate changes on cash and cash equivalents and restricted cash — — — (24,840 ) (24,840 ) NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH — 18,459 160,805 (140,139 ) 39,125 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD 7 15,604 114,143 695,065 824,819 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD $ 7 $ 34,063 $ 274,948 $ 554,926 $ 863,944 SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: Cash paid during the period for: Interest $ — $ 102,491 $ — $ 1,674 $ 104,165 Income taxes, net $ — $ — $ 198,930 $ 176,919 $ 375,849 Condensed Consolidating Statement of Cash Flows For the Year Ended December 31, 2017 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Consolidated Total CASH FLOWS PROVIDED BY OPERATING ACTIVITIES: $ 89,341 $ 37,990 $ 424,787 $ 342,293 $ 894,411 CASH FLOWS FROM INVESTING ACTIVITIES: Capital expenditures — — (121,347 ) (56,695 ) (178,042 ) Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired — — (87,248 ) (31,179 ) (118,427 ) Contributions to unconsolidated subsidiaries — — (63,119 ) (5,581 ) (68,700 ) Distributions from unconsolidated subsidiaries — — 52,896 10,768 63,664 Purchase of equity securities — — (15,584 ) — (15,584 ) Proceeds from sale of equity securities — — 15,587 — 15,587 Purchase of available for sale debt securities — — (19,280 ) — (19,280 ) Proceeds from the sale of available for sale debt securities — — 15,790 — 15,790 Other investing activities, net — — 1,968 424 2,392 Net cash used in investing activities — — (220,337 ) (82,263 ) (302,600 ) CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from senior term loans — 200,000 — — 200,000 Repayment of senior term loans — (751,876 ) — — (751,876 ) Proceeds from revolving credit facility — 1,521,000 — — 1,521,000 Repayment of revolving credit facility — (1,521,000 ) — — (1,521,000 ) Proceeds from notes payable on real estate — — — 4,333 4,333 Repayment of notes payable on real estate — — — (12,556 ) (12,556 ) Acquisition of businesses (cash paid for acquisitions more than three months after purchase date) — — (19,854 ) (4,152 ) (24,006 ) Units repurchased for payment of taxes on equity awards (29,549 ) — — — (29,549 ) Non-controlling interest contributions — — — 5,301 5,301 Non-controlling interest distributions — — — (8,715 ) (8,715 ) Payment of financing costs — (7,978 ) — (21 ) (7,999 ) (Increase) decrease in intercompany receivables, net (60,271 ) 520,579 (338,396 ) (121,912 ) — Other financing activities, net 479 — (3,145 ) (9 ) (2,675 ) Net cash used in financing activities (89,341 ) (39,275 ) (361,395 ) (137,731 ) (627,742 ) Effect of currency exchange rate changes on cash and cash equivalents and restricted cash — — — 29,338 29,338 NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH — (1,285 ) (156,945 ) 151,637 (6,593 ) CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD 7 16,889 271,088 543,428 831,412 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD $ 7 $ 15,604 $ 114,143 $ 695,065 $ 824,819 SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: Cash paid during the period for: Interest $ — $ 117,072 $ — $ 92 $ 117,164 Income taxes, net $ — $ — $ 198,520 $ 158,477 $ 356,997 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Condensed Consolidating Statement of Cash Flows For the Year Ended December 31, 2016 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Consolidated Total CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: $ 84,393 $ (23,643 ) $ 296,501 $ 259,734 $ 616,985 CASH FLOWS FROM INVESTING ACTIVITIES: Capital expenditures — — (115,049 ) (76,156 ) (191,205 ) Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired — — (2,191 ) (18,886 ) (21,077 ) Contributions to unconsolidated subsidiaries — — (47,192 ) (19,624 ) (66,816 ) Distributions from unconsolidated subsidiaries — — 39,340 7,435 46,775 Net proceeds from disposition of real estate held for investment — — — 44,326 44,326 Purchase of equity securities — — (15,506 ) — (15,506 ) Proceeds from sale of equity securities — — 16,954 — 16,954 Purchase of available for sale debt securities — — (22,155 ) — (22,155 ) Proceeds from the sale of available for sale debt securities — — 18,097 — 18,097 Other investing activities, net — — 19,178 20,905 40,083 Net cash used in investing activities — — (108,524 ) (42,000 ) (150,524 ) CASH FLOWS FROM FINANCING ACTIVITIES: Repayment of senior term loans — (136,250 ) — — (136,250 ) Proceeds from revolving credit facility — 2,909,000 — — 2,909,000 Repayment of revolving credit facility — (2,909,000 ) — — (2,909,000 ) Proceeds from notes payable on real estate — — — 25,001 25,001 Repayment of notes payable on real estate — — — (38,046 ) (38,046 ) Acquisition of businesses (cash paid for acquisitions more than three months after purchase date) — — (1,125 ) (19,909 ) (21,034 ) Units repurchased for payment of taxes on equity awards (27,426 ) — — — (27,426 ) Non-controlling interest contributions — — — 2,272 2,272 Non-controlling interest distributions — — — (19,133 ) (19,133 ) Payment of financing costs — (5,459 ) — (159 ) (5,618 ) (Increase) decrease in intercompany receivables, net (57,880 ) 173,762 (68,422 ) (47,460 ) — Other financing activities, net 915 — (1,173 ) (185 ) (443 ) Net cash (used in) provided by financing activities (84,391 ) 32,053 (70,720 ) (97,619 ) (220,677 ) Effect of currency exchange rate changes on cash and cash equivalents and restricted cash — — — (27,539 ) (27,539 ) NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH 2 8,410 117,257 92,576 218,245 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD 5 8,479 153,831 450,852 613,167 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD $ 7 $ 16,889 $ 271,088 $ 543,428 $ 831,412 SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: Cash paid during the period for: Interest $ — $ 122,605 $ — $ 3,195 $ 125,800 Income taxes, net $ — $ — $ 174,164 $ 120,684 $ 294,848 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information.

Subsequent Event

Subsequent Event	12 Months Ended
	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent Event	21. Subsequent Event During the month of January 2019, we spent $45.1 million to repurchase an additional 1,144,449 shares of our Class A common stock with an average price paid per share of $39.38. Additionally, on February 28, 2019, our board of directors authorized a new program for the company to repurchase up to $300.0 million of our Class A common stock over three years, effective March 11, 2019. The existing program will terminate upon the effectiveness of the new program.

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2018
Valuation And Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts	CBRE GROUP, INC. (Dollars in thousands) Allowance for Doubtful Accounts Balance, December 31, 2015 $ 46,606 Charges to expense 4,711 Write-offs, payments and other (11,848 ) Balance, December 31, 2016 39,469 Charges to expense 8,044 Write-offs, payments and other (724 ) Balance, December 31, 2017 46,789 Charges to expense 19,760 Write-offs, payments and other (6,201 ) Balance, December 31, 2018 $ 60,348

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation The accompanying consolidated financial statements include our accounts and those of our consolidated subsidiaries, which are comprised of variable interest entities in which we are the primary beneficiary and voting interest entities, in which we determined we have a controlling financial interest, under the “ Consolidations Variable Interest Entities (VIEs) We determine whether an entity is a VIE and, if so, whether it should be consolidated by utilizing judgments and estimates that are inherently subjective. Our determination of whether an entity in which we hold a direct or indirect variable interest is a VIE is based on several factors, including whether the entity’s total equity investment at risk upon inception is sufficient to finance the entity’s activities without additional subordinated financial support. We make judgments regarding the sufficiency of the equity at risk based first on a qualitative analysis, and then a quantitative analysis, if necessary. We analyze any investments in VIEs to determine if we are the primary beneficiary. In evaluating whether we are the primary beneficiary, we evaluate our direct and indirect economic interests in the entity. A reporting entity is determined to be the primary beneficiary if it holds a controlling financial interest in the VIE. Determining which reporting entity, if any, has a controlling financial interest in a VIE is primarily a qualitative approach focused on identifying which reporting entity has both (1) the power to direct the activities of a VIE that most significantly impact such entity’s economic performance and (2) the obligation to absorb losses or the right to receive benefits from such entity that could potentially be significant to such entity. Performance of that analysis requires the exercise of judgment. We consider a variety of factors in identifying the entity that holds the power to direct matters that most significantly impact the VIE’s economic performance including, but not limited to, the ability to direct financing, leasing, construction and other operating decisions and activities. In addition, we consider the rights of other investors to participate in those decisions, to replace the manager and to sell or liquidate the entity. We determine whether we are the primary beneficiary of a VIE at the time we become involved with a variable interest entity and reconsider that conclusion continually. We consolidate any VIE of which we are the primary beneficiary and disclose significant VIEs of which we are not the primary beneficiary, if any, as well as disclose our maximum exposure to loss related to VIEs that are not consolidated (see Note 6). Voting Interest Entities (VOEs) For VOEs, we consolidate the entity if we have a controlling financial interest. We have a controlling financial interest in a VOE if (i) for legal entities other than limited partnerships, we own a majority voting interest in the VOE or, for limited partnerships and similar entities, we own a majority of the entity’s kick-out rights through voting limited partnership interests and (ii) non-controlling shareholders or partners do not hold substantive participating rights and no other conditions exist that would indicate that we do not control the entity. Other Investments Our investments in unconsolidated subsidiaries in which we have the ability to exercise significant influence over operating and financial policies, but do not control, or entities which are variable interest entities in which we are not the primary beneficiary are accounted for under the equity method. We eliminate transactions with such equity method subsidiaries to the extent of our ownership in such subsidiaries. Accordingly, our share of the earnings from these equity-method basis companies is included in consolidated net income. All other investments held on a long-term basis are valued at cost less any impairment in value. Marketable Securities We account for investments in marketable debt securities in accordance with the “ Investments – Debt and Equity Securities As described in the “New Accounting Pronouncements” footnote 3, we adopted ASU 2016-01, “ Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities Impairment Evaluation Impairment losses are recognized upon evidence of other-than-temporary losses of value. When testing for impairment on investments that are not actively traded on a public market, we generally use a discounted cash flow approach to estimate the fair value of our investments and/or look to comparable activities in the marketplace. Management’s judgment is required in developing the assumptions for the discounted cash flow approach. These assumptions include net asset values, internal rates of return, discount and capitalization rates, interest rates and financing terms, rental rates, timing of leasing activity, estimates of lease terms and related concessions, etc. When determining if impairment is other-than-temporary, we also look to the length of time and the extent to which fair value has been less than cost as well as the financial condition and near-term prospects of each investment. Based on our review, we did not record any significant other-than-temporary impairment losses during the years ending December 31, 2018, 2017 and 2016.
Use of Estimates	Use of Estimates Our consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (U.S.), or GAAP, which require management to make estimates and assumptions about future events. These estimates and assumptions affect the amounts of assets, liabilities, revenue and expenses we report. Such estimates include the value of goodwill, intangibles and other long-lived assets, accounts receivable, investments in unconsolidated subsidiaries and assumptions used in the calculation of income taxes, retirement and other post-employment benefits, among others. These estimates and assumptions are based on management’s best judgment, and are evaluated on an ongoing basis and adjusted, as needed, using historical experience and other factors, including consideration of the macroeconomic environment. As future events and their effects cannot be forecast with precision, actual results could differ significantly from these estimates. Changes in estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents generally consist of cash and highly liquid investments with an original maturity of three months or less. Included in the accompanying consolidated balance sheets as of December 31, 2018 and 2017 is cash and cash equivalents of $155.2 million and $123.8 million, respectively, from consolidated funds and other entities, which are not available for general corporate use. We also manage certain cash and cash equivalents as an agent for our investment and property and facilities management clients. These amounts are not included in the accompanying consolidated balance sheets (see Fiduciary Funds
Restricted Cash	Restricted Cash Included in the accompanying consolidated balance sheets as of December 31, 2018 and 2017 is restricted cash of $86.7 million and $73.0 million, respectively. The balances primarily include restricted cash set aside to cover funding obligations as required by contracts executed by us in the ordinary course of business.
Fiduciary Funds	Fiduciary Funds The accompanying consolidated balance sheets do not include the net assets of escrow, agency and fiduciary funds, which are held by us on behalf of clients and which amounted to $5.9 billion and $4.0 billion at December 31, 2018 and 2017, respectively.
Concentration of Credit Risk	Concentration of Credit Risk Financial instruments that potentially subject us to credit risk consist principally of trade receivables and interest-bearing investments. Users of real estate services account for a substantial portion of trade receivables and collateral is generally not required. The risk associated with this concentration is limited due to the large number of users and their geographic dispersion. We place substantially all of our interest-bearing investments with several major financial institutions to limit the amount of credit exposure with any one financial institution.
Property and Equipment	Property and Equipment Property and equipment, which includes leasehold improvements, is stated at cost, net of accumulated depreciation. Depreciation and amortization of property and equipment is computed primarily using the straight-line method over estimated useful lives ranging up to 10 years. Leasehold improvements are amortized over the term of their associated leases, excluding options to renew, since such leases generally do not carry prohibitive penalties for non-renewal. We capitalize expenditures that significantly increase the life of our assets and expense the costs of maintenance and repairs. We review property and equipment for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If this review indicates that such assets are considered to be impaired, the impairment is recognized in the period the changes occur and represents the amount by which the carrying value exceeds the fair value of the asset. Certain costs related to the development or purchase of internal-use software are capitalized. Internal-use software costs that are incurred in the preliminary project stage are expensed as incurred. Significant direct consulting costs and certain payroll and related costs, which are incurred during the development stage of a project are generally capitalized and amortized over a three-year period (except for enterprise software development platforms, which range from three to seven years) when placed into production.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Our acquisitions require the application of purchase accounting, which results in tangible and identifiable intangible assets and liabilities of the acquired entity being recorded at fair value. The difference between the purchase price and the fair value of net assets acquired is recorded as goodwill. The majority of our goodwill balance has resulted from our acquisition of CBRE Services, Inc. (CBRE Services) in 2001 (the 2001 Acquisition), our acquisition of Insignia Financial Group, Inc. (Insignia) in 2003 (the Insignia Acquisition), our acquisition of the Trammell Crow Company in 2006 (the Trammell Crow Company Acquisition), our acquisition of substantially all of the ING Group N.V. (ING) Real Estate Investment Management (REIM) operations in Europe and Asia, as well as substantially all of Clarion Real Estate Securities (CRES) in 2011 (collectively referred to as the REIM Acquisitions), our acquisition of Norland Managed Services Ltd (Norland) in 2013 (the Norland Acquisition), our acquisition of Johnson Controls, Inc. (JCI)’s Global Workplace Solutions (JCI-GWS) business in 2015 and our acquisition of FacilitySource Holdings, LLC (FacilitySource) in 2018 We are required to test goodwill and other intangible assets deemed to have indefinite useful lives for impairment at least annually, or more often if circumstances or events indicate a change in the impairment status, in accordance with ASC Topic 350, “ Intangibles – Goodwill and Other
Deferred Financing Costs	Deferred Financing Costs Costs incurred in connection with financing activities are generally deferred and amortized over the terms of the related debt agreements ranging up to ten years. D ebt issuance costs related to a recognized debt liability are presented in the accompanying consolidated balance sheets as a direct deduction from the carrying amount of that debt liability. Accounting Standards Update (ASU) 2015-15, “Interest—Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements” permits classifying debt issuance costs associated with a line of credit arrangement as an asset, regardless of whether there are any outstanding borrowings on the arrangement. During 2018, we redeemed in full our $800.0 million aggregate outstanding principal amount of 5.00% senior notes. In connection with this early redemption, we incurred costs, including a $20.0 million premium paid and the write-off of $8.0 million of unamortized deferred financing costs, both of which were included in write-off of financing costs on extinguished debt in the accompanying consolidated statements of operations. During 2017, we entered into a new credit agreement providing for a $750.0 million tranche A term loan facility and a $2.8 billion revolving credit facility. During the year ended December 31, 2017, in connection with these financing activities, we incurred approximately $8.0 million of financing costs. On March 21, 2016, we executed an amendment to our 2015 amended and restated credit agreement which, among other things, extended the maturity on our revolving credit facility and increased the borrowing capacity under our revolving credit facility. In connection with this amendment, we incurred approximately $5.4 million of financing costs. See Note 11 for additional information on activities associated with our debt.
Revenue Recognition	Revenue Recognition We account for revenue in accordance with ASC Topic 606, “ Revenue from Contracts with Customers Other Assets and Deferred Costs – Contracts with Customers The following is a description of principal activities – separated by reportable segments – from which we generate revenue. For more detailed information about our reportable segments, see Notes 17 and 18. The Americas, Europe, Middle East and Africa (EMEA), and Asia Pacific The Americas segment is our largest segment of operations and provides a comprehensive range of services throughout the U.S., in the largest regions of Canada and in key markets in Latin America. The primary services offered consist of the following: property leasing, property sales, mortgage services, appraisal and valuation, occupier outsourcing and property management services. Our EMEA and Asia Pacific segments generally provide services similar to the Americas business segment. The EMEA segment has operations primarily in Europe, while the Asia Pacific segment has operations in Asia, Australia and New Zealand. Property Leasing and Property Sales We provide strategic advice and execution for owners, investors, and occupiers of real estate in connection with the leasing of office, industrial and retail space. We also offer clients fully integrated property sales services under the CBRE Capital Markets brand. We are compensated for our services in the form of a commission and, in some instances may earn various forms of variable incentive consideration. Our commission is paid upon the occurrence of certain contractual event(s) which may be contingent. For example, a portion of our leasing commission may be paid upon signing of the lease by the tenant, with the remaining paid upon occurrence of another future contingent event (e.g. payment of first month’s rent or tenant move-in). For leases, we typically satisfy our performance obligation at a point in time when control is transferred; generally, at the time of the first contractual event where there is a present right to payment. We look to history, experience with a customer, and deal specific considerations as part of the most likely outcome estimation approach to support our judgement that the second contingency (if applicable) will be met. Therefore, we typically accelerate the recognition of the revenue associated with the second contingent event. For sales, our commission is typically paid at the closing of the sale, which represents transfer of control for services to the customer. In addition to our commission, we may recognize other forms of variable consideration which can include, but are not limited to, commissions subject to concession or claw back and volume based discounts or rebates. We assess variable consideration on a contract by contract basis, and when appropriate, recognize revenue based on our assessment of the outcome (using the most likely outcome approach or weighted probability) and historical results, if comparable and representative. We recognize variable consideration if it is deemed probable that there will not be significant reversal in the future. Mortgage Originations and Loan Sales We offer clients commercial mortgage and structured financing services. Fees from services within our mortgage brokerage business that are in the scope of Topic 606 include fees earned for the brokering of commercial mortgage loans primarily through relationships established with investment banking firms, national and regional banks, credit companies, insurance companies and pension funds. We are compensated for our brokerage services via a fee paid upon successful placement of a commercial mortgage borrower with a lender who will provide financing. The fee earned is contingent upon the funding of the loan, which represents the transfer of control for services to the customer. Therefore, we typically satisfy our performance obligation at the point in time of the funding of the loan. We also earn fees from the origination and sale of commercial mortgage loans for which the company retains the servicing rights. These fees are governed by the “ Fair Value Measurements and Disclosures Transfers and Servicing Valuation Services We provide valuation services that include market-value appraisals, litigation support, discounted cash flow analyses, feasibility studies as well as consulting services such as property condition reports, hotel advisory and environmental consulting. We are compensated for valuation services in the form of a fee, which is payable on the occurrence of certain events (e.g., a portion on the delivery of a draft report with the remaining on the delivery of the final report). For consulting services, we may be paid based on the occurrence of time or event-based milestones (such as the delivery of draft reports). We typically satisfy our performance obligation for valuation services as services are rendered over time. Occupier Outsourcing Services We provide a broad suite of services to occupiers of real estate, including facilities management, project management, transaction management and strategic consulting. Facilities management involves the day-to-day management of client-occupied space and includes headquarter buildings, regional offices, administrative offices, data centers and other critical facilities, manufacturing and laboratory facilities, distribution facilities and retail space. Contracts for facilities management services are often structured so we are reimbursed for client-dedicated personnel costs and subcontracted vendor costs as well as associated overhead expenses plus a monthly fee, and, in some cases, annual incentives tied to agreed-upon performance targets, with any penalties typically capped. In addition, we have contracts for facilities management services based on fixed fees or guaranteed maximum prices. Fixed fee contracts are typically structured where an agreed upon scope of work is delivered for a fixed price while guaranteed maximum price contracts are structured with an agreed upon scope of work that will be provided to the client for a not to exceed price. Facilities management services represent a series of distinct daily services rendered over time. Consistent with the transfer of control for distinct, daily services to the customer, revenue is typically recognized at the end of each period for the fees associated with the services performed. Project management services are often provided on a portfolio wide or programmatic basis. Revenues from project management services generally includes fixed management fees, variable fees, and incentive fees if certain agreed-upon performance targets are met. Revenues from project management may also include reimbursement of payroll and related costs for personnel providing the services and subcontracted vendor costs. Project management services represent a series of distinct daily services rendered over time. Consistent with the transfer of control for distinct, daily services to the customer, revenue is typically recognized at the end of each period for the fees associated with the services performed. The amount of revenue recognized is presented gross for any services provided by our employees, as we control them. This is evidenced by our obligation for their performance and our ability to direct and redirect their work, as well as negotiate the value of such services. The amount of revenue recognized related to the majority of facilities management contracts and certain project management arrangements is presented gross (with offsetting expense recorded in cost of services) for reimbursements of costs of third-party services because we control those services that are delivered to the client. In the instances when we do not control third-party services delivered to the client, we report revenues net of the third-party reimbursements. In addition to our management fee, we receive various types of variable consideration which can include, but is not limited to; key performance indicator bonuses or penalties which may be linked to subcontractor performance, gross maximum price, glidepaths, savings guarantees, shared savings, or fixed fee structures. We assess variable consideration on a contract by contract basis, and when appropriate, recognize revenue based on our assessment of the outcome (using the most likely outcome approach or weighted probability) and historical results, if comparable and representative. Using management assessment, historical results and statistics, we recognize revenue if it is deemed probable there will not be significant reversal in the future. Property Management Services We provide property management services on a contractual basis for owners of and investors in office, industrial and retail properties. These services include construction management, marketing, building engineering, accounting and financial services. We are compensated for our services through a monthly management fee earned based on either a specified percentage of the monthly rental income, rental receipts generated from the property under management or a fixed fee. We are also often reimbursed for our administrative and payroll costs directly attributable to the properties under management. Property management services represent a series of distinct daily services rendered over time. Consistent with the transfer of control for distinct, daily services to the customer, revenue is recognized at the end of each period for the fees associated with the services performed. The amount of revenue recognized is presented gross for any services provided by our employees, as we control them. We generally do not control third-party services delivered to property management clients. As such, we report revenues net of third-party reimbursements. Global Investment Management Our Global Investment Management business segment provides investment management services to pension funds, insurance companies, sovereign wealth funds, foundations, endowments and other institutional investors seeking to generate returns and diversification through investment in real estate. We sponsor investment programs that span the risk/return spectrum in: North America, Europe, Asia and Australia. We are typically compensated in the form of a base management fee, disposition fees, acquisition fees and incentive fees in the form of performance fees or carried interest based on fund type (open or closed ended, respectively). For the base management fee, we typically satisfy the performance obligation as service is rendered over time pursuant to the series guidance. Consistent with the transfer of control for distinct, daily services to the customer, revenue is recognized at the end of each period for the fees associated with the services performed. For acquisition and disposition services, we typically satisfy the performance obligation at a point in time (at acquisition or upon disposition). For contracts with contingent fees, including performance fees, incentive fees and carried interest, we assess variable consideration on a contract by contract basis, and when appropriate, recognize revenue based on our assessment of the outcome (using the most likely outcome approach or weighted probability) and historical results, if comparable and representative. Revenue associated with performance fees and carried interest are typically constrained due to volatility in the real estate market, a broad range of possible outcomes, and other factors in the market that are outside of our control. Development Services Our Development Services business segment consists of real estate development and investment activities in the United States to users of and investors in commercial real estate, as well as for our own account. We pursue opportunistic, risk-mitigated development and investment in commercial real estate across a wide spectrum of property types, including: industrial, office and retail properties; healthcare facilities of all types (medical office buildings, hospitals and ambulatory surgery centers); and residential/mixed-use projects. We pursue development and investment activity on behalf of our clients on a fee basis with no, or limited, ownership interest in a property, in partnership with our clients through co-investment – either on an individual project basis or through programs with certain strategic capital partners or for our own account with 100% ownership. Development services represent a series of distinct daily services rendered over time. Consistent with the transfer of control for distinct, daily services to the customer, revenue is recognized at the end of each period for the fees associated with the services performed. Fees are typically payable monthly over the service term or upon contractual defined events, like project milestones. In addition to development fee revenue, we receive various types of variable consideration which can include, but is not limited to, contingent lease-up bonuses, cost saving incentives, profit sharing on sales and at-risk fees. We assess variable consideration on a contract by contract basis, and when appropriate, recognize revenue based on our assessment of the outcome (using the most likely outcome approach or weighted probability) and historical results, if comparable and representative. We accelerate revenue if it is deemed probable there will not be significant reversal in the future. Accounts Receivable and Allowance for Doubtful Accounts We record accounts receivable for our unconditional rights to consideration arising from our performance under contracts with customers. The carrying value of such receivables, net of the allowance for doubtful accounts, represents their estimated net realizable value. We estimate our allowance for doubtful accounts for specific accounts receivable balances based on historical collection trends, the age of outstanding accounts receivables and existing economic conditions associated with the receivables. Past-due accounts receivable balances are written off when our internal collection efforts have been unsuccessful. As a practical expedient, we do not adjust the promised amount of consideration for the effects of a significant financing component when we expect, at contract inception, that the period between our transfer of a promised service to a customer and when the customer pays for that service will be one year or less. We do not typically include extended payment terms in our contracts with customers. Remaining Performance Obligations Remaining performance obligations represent the aggregate transaction prices for contracts where our performance obligations have not yet been satisfied. As of December 31, 2018, the aggregate amount of transaction price allocated to remaining performance obligations in our property leasing business was not significant. We apply the practical expedient related to remaining performance obligations that are part of a contract that has an original expected duration of one year or less and the practical expedient related to variable consideration from remaining performance obligations pursuant to the series guidance. All of our remaining performance obligations apply to one of these practical expedients. Contract Assets and Contract Liabilities Contract assets represent assets for revenue that has been recognized in advance of billing the customer and for which the right to bill is contingent upon something other than the passage of time. This is common for contingent portions of commissions in brokerage and incentive fees present in various businesses. Billing requirements vary by contract but are generally structured around fixed monthly fees, reimbursement of employee and other third-party costs, and the achievement or completion of certain contingent events. When we receive consideration, or such consideration is unconditionally due, from a customer prior to transferring services to the customer under the terms of the services contract, we record deferred revenue, which represents a contract liability. We recognize the contract liability as revenue once we have transferred control of service to the customer and all revenue recognition criteria are met. Contract assets and contract liabilities are determined for each contract on a net basis. For contract assets, we classify the short-term portion as a separate line item within current assets and the long-term portion within other assets, long-term in the accompanying consolidated balance sheets. For contract liabilities, we classify the short-term portion as a separate line item within current liabilities and the long-term portion within other liabilities, long-term in the accompanying consolidated balance sheets. Contract Costs Contract costs primarily consist of upfront costs incurred to obtain or to fulfill a contract. These costs are typically found within our Occupier Outsourcing business line. Such costs relate to transition costs to fulfill contracts prior to services being rendered and are included within other intangible assets in the accompanying consolidated balance sheets. Capitalized transition costs are amortized based on the transfer of services to which the assets relate which can vary on a contract by contract basis, and are included in cost of services in the accompanying consolidated statement of operations. For contract costs that are recognized as assets, we periodically review for impairment. Applying the contract cost practical expedient, we recognize the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets that we otherwise would have recognized is one year or less.
Business Promotion and Advertising Costs	Business Promotion and Advertising Costs The costs of business promotion and advertising are expensed as incurred. Business promotion and advertising costs of $74.8 million, $63.1 million and $65.8 million were included in operating, administrative and other expenses for the years ended December 31, 2018, 2017 and 2016, respectively.
Foreign Currencies	Foreign Currencies The financial statements of subsidiaries located outside the U.S. are generally measured using the local currency as the functional currency. The assets and liabilities of these subsidiaries are translated at the rates of exchange at the balance sheet date, and income and expenses are translated at the average monthly rate. The resulting translation adjustments are included in the accumulated other comprehensive loss component of equity. Gains and losses resulting from foreign currency transactions are included in the results of operations.
Comprehensive Income	Comprehensive Income Comprehensive income consists of net income and other comprehensive (loss) income. In the accompanying consolidated balance sheets, accumulated other comprehensive loss primarily consists of foreign currency translation adjustments, fees associated with the termination of interest rate swaps, unrealized gains (losses) on interest rate swaps, unrealized holding (losses) gains on available for sale debt securities and pension liability adjustments. Foreign currency translation adjustments exclude any income tax effect given that earnings of non-U.S. subsidiaries are deemed to be reinvested for an indefinite period of time (see Note 14).
Warehouse Receivables	Warehouse Receivables Our wholly-owned subsidiary CBRE Capital Markets, Inc. (CBRE Capital Markets) is a Federal Home Loan Mortgage Corporation (Freddie Mac) approved Multifamily Program Plus Seller/Servicer and an approved Federal National Mortgage Association (Fannie Mae) Aggregation and Negotiated Transaction Seller/Servicer. In addition, CBRE Capital Markets’ wholly-owned subsidiary CBRE Multifamily Capital, Inc. (CBRE MCI) is an approved Fannie Mae Delegated Underwriting and Servicing (DUS) Seller/Servicer and CBRE Capital Markets’ wholly-owned subsidiary CBRE HMF, Inc. (CBRE HMF) is a U.S. Department of Housing and Urban Development (HUD) approved Non-Supervised Federal Housing Authority (FHA) Title II Mortgagee, an approved Multifamily Accelerated Processing (MAP) lender and an approved Government National Mortgage Association (Ginnie Mae) issuer of mortgage-backed securities (MBS). Under these arrangements, before loans are originated through proceeds from warehouse lines of credit, we obtain either a contractual loan purchase commitment from either Freddie Mac or Fannie Mae or a confirmed forward trade commitment for the issuance and purchase of a Fannie Mae or Ginnie Mae MBS that will be secured by the loans. The warehouse lines of credit are generally repaid within a one-month period when Freddie Mac or Fannie Mae buys the loans or upon settlement of the Fannie Mae or Ginnie Mae MBS, while we retain the servicing rights. Loans are funded at the prevailing market rates. We elect the fair value option for all warehouse receivables. At December 31, 2018 and 2017, all of the warehouse receivables included in the accompanying consolidated balance sheets were either under commitment to be purchased by Freddie Mac or had confirmed forward trade commitments for the issuance and purchase of Fannie Mae or Ginnie Mae mortgage-backed securities that will be secured by the underlying loans.
Mortgage Servicing Rights	Mortgage Servicing Rights In connection with the origination and sale of mortgage loans with servicing rights retained, we record servicing assets or liabilities based on the fair value of the mortgage servicing rights on the date the loans are sold. Our mortgage service rights (MSRs) are initially recorded at fair value. Subsequent to the initial recording, MSRs are amortized and carried at the lower of amortized cost or fair value in other intangible assets in the accompanying consolidated balance sheets. They are amortized in proportion to and over the estimated period that net servicing income is expected to be received based on projections and timing of estimated future net cash flows. Our initial recording of MSRs at their fair value resulted in net gains, as the fair value of servicing contracts that result in MSR assets exceeded the fair value of servicing contracts that result in MSR liabilities. The net assets and net gains are presented in the accompanying consolidated financial statements. The amount of MSRs recognized during the years ended December 31, 2018 and 2017 was as follows (dollars in thousands): Year Ended December 31, 2018 2017 Beginning balance, mortgage servicing rights $ 373,131 $ 320,524 Mortgage servicing rights recognized 173,737 145,103 Mortgage servicing rights sold — (71 ) Amortization expense (115,743 ) (98,559 ) Other (6,655 ) 6,134 Ending balance, mortgage servicing rights $ 424,470 $ 373,131 MSRs do not actively trade in an open market with readily available observable prices; therefore, fair value is determined based on certain assumptions and judgments, including the estimation of the present value of future cash flows realized from servicing the underlying mortgage loans. Management’s assumptions include the benefits of servicing (servicing fee income and interest on escrow deposits), inflation, the cost of servicing, prepayment rates, delinquencies, discount rates and the estimated life of servicing cash flows. The assumptions used are subject to change based on management’s judgments and estimates of changes in future cash flows and interest rates, among other things. The key assumptions used during the years ended December 31, 2018, 2017 and 2016 in measuring fair value were as follows: Year Ended December 31, 2018 2017 2016 Discount rate 10.00 % 10.06 % 10.16 % Conditional prepayment rate 8.89 % 8.88 % 9.66 % The estimated fair value of our MSRs was $554.2 million and $446.3 million as of December 31, 2018 and 2017, respectively. Impairment is evaluated through a comparison of the carrying amount and fair value of the MSRs, and recognized with the establishment of a valuation allowance. We did not incur any impairment charges related to our MSRs during the years ended December 31, 2018, 2017 or 2016. No valuation allowance was created previously and we did not record a valuation allowance for MSRs in 2018 or 2017. Included in revenue in the accompanying consolidated statements of operations are contractually specified servicing fees from loans serviced for others of $167.5 million, $144.2 million and $115.3 million for the years ended December 31, 2018, 2017 and 2016, respectively, and prepayment fees/late fees/ancillary income earned from loans serviced for others of $15.9 million, $13.2 million and $7.2 million for the years ended December 31, 2018, 2017 and 2016, respectively.
Accounting for Broker Draws	Accounting for Broker Draws As part of our recruitment efforts relative to new U.S. brokers, we offer a transitional broker draw arrangement. Our broker draw arrangements generally last until such time as a broker’s pipeline of business is sufficient to allow him or her to earn sustainable commissions. This program is intended to provide the broker with a minimal amount of cash flow to allow adequate time for his or her training as well as time for him or her to develop business relationships. Similar to traditional salaries, the broker draws are paid irrespective of the actual revenues generated by the broker. Often these broker draws represent the only form of compensation received by the broker. Furthermore, it is not our general policy to pursue collection of unearned broker draws paid under this arrangement. As a result, we have concluded that broker draws are economically equivalent to salaries paid and accordingly charge them to compensation expense as incurred. The broker is also entitled to earn a commission on completed revenue transactions. This amount is calculated as the commission that would have been payable under our full commission program, less any amounts previously paid to the broker in the form of a draw.
Stock-Based Compensation	Stock-Based Compensation We account for all employee awards under the fair value recognition provisions of the “ Compensation – Stock Compensation In the third quarter of 2016, we elected to early adopt the provisions of ASU 2016-09, “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting,” ASU 2016-09 the impact of this change in accounting policy was recorded as a $3.3 million cumulative effect adjustment to accumulated earnings as of January 1, 2016. See Note 13 for additional information on our stock-based compensation plans.
Income Per Share	Income Per Share Basic income per share attributable to CBRE Group, Inc. is computed by dividing net income attributable to CBRE Group, Inc. shareholders by the weighted average number of common shares outstanding during each period. The computation of diluted income per share attributable to CBRE Group, Inc. generally further assumes the dilutive effect of potential common shares, which include stock options and certain contingently issuable shares. Contingently issuable shares consist of non-vested stock awards.
Income Taxes	Income Taxes Income taxes are accounted for under the asset and liability method in accordance with the “ Accounting for Income Taxes See Note 14 for additional information on income taxes, including a discussion of the impact of the Tax Cuts and Jobs Act (the Tax Act), which was signed into law on December 22, 2017.
Self-Insurance	Self-Insurance Our wholly-owned captive insurance company, which is subject to applicable insurance rules and regulations, insures our exposure related to workers’ compensation insurance, general liability insurance and automotive insurance for our U.S. operations risk on a primary basis and we purchase excess coverage from unrelated insurance carriers. The captive insurance company also insures primary risk relating to professional indemnity claims globally. Given the nature of these types of claims, it may take several years for resolution and determination of the cost of these claims. We are required to estimate the cost of these claims in our financial statements. The estimates that we utilize to record our potential losses on claims are inherently subjective, and actual claims could differ from amounts recorded, which could result in increased or decreased expense in future periods. As of December 31, 2018 and 2017, our reserves for claims under these insurance programs were $113.0 million and $93.7 million, respectively, of which $2.7 million and $2.8 million, respectively, represented our estimated current liabilities.
Reclassifications	Reclassifications Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation in connection with our adoption of new revenue recognition guidance (as further described in note 3). In addition, certain reclassifications have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. Such reclassifications primarily relate to the adoption of ASU 2016‑01, ASU 2016-15 and ASU 2016-18 as further described in Note 3.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Schedule of Loan Servicing Rights Recognized	The amount of MSRs recognized during the years ended December 31, 2018 and 2017 was as follows (dollars in thousands): Year Ended December 31, 2018 2017 Beginning balance, mortgage servicing rights $ 373,131 $ 320,524 Mortgage servicing rights recognized 173,737 145,103 Mortgage servicing rights sold — (71 ) Amortization expense (115,743 ) (98,559 ) Other (6,655 ) 6,134 Ending balance, mortgage servicing rights $ 424,470 $ 373,131
Schedule of Assumptions Used in Measuring Fair Value of Servicing Assets	The key assumptions used during the years ended December 31, 2018, 2017 and 2016 in measuring fair value were as follows: Year Ended December 31, 2018 2017 2016 Discount rate 10.00 % 10.06 % 10.16 % Conditional prepayment rate 8.89 % 8.88 % 9.66 %

New Accounting Pronouncements (

New Accounting Pronouncements (Tables)	12 Months Ended
	Dec. 31, 2018
ASU 2014-09 [Member]
Schedule of Adoption of New Revenue Recognition Guidance on Financial statement	The following table presents the effects of the adoption of the new revenue recognition guidance on our consolidated balance sheet as of December 31, 2017 (dollars in thousands): As Reported Adoption of New Revenue Recognition Guidance As Adjusted Receivables $ 3,207,285 $ (94,996 ) $ 3,112,289 Contract assets — 273,053 273,053 Total current assets 5,452,527 178,057 5,630,584 Other assets, net 422,965 56,509 479,474 Total assets 11,483,830 234,566 11,718,396 Accounts payable and accrued expenses 1,674,287 (100,615 ) 1,573,672 Accrued bonus and profit sharing 1,072,976 5,369 1,078,345 Compensation and employee benefits payable 803,504 100,930 904,434 Contract liabilities — 100,615 100,615 Total current liabilities 4,606,645 106,299 4,712,944 Deferred tax liabilities, net 114,017 33,201 147,218 Total liabilities 7,404,282 139,500 7,543,782 Accumulated earnings 3,348,385 94,622 3,443,007 Accumulated other comprehensive loss (552,858 ) 444 (552,414 ) Total CBRE Group, Inc. stockholders' equity 4,019,430 95,066 4,114,496 Total liabilities and equity 11,483,830 234,566 11,718,396 The following tables present the effects of the adoption of the new revenue recognition guidance on our consolidated statements of operations for the years ended December 31, 2017 and 2016 (dollars in thousands, except share amounts): Year Ended December 31, 2017 As Reported Adoption of New Revenue Recognition Guidance As Adjusted Revenue $ 14,209,608 $ 4,419,179 $ 18,628,787 Cost of services 9,893,226 4,411,873 14,305,099 Operating, administrative and other 2,858,654 66 2,858,720 Operating income 1,071,442 7,240 1,078,682 Income before provision for income taxes 1,164,093 7,240 1,171,333 Provision for income taxes 466,147 1,610 467,757 Net income 697,946 5,630 703,576 Net income attributable to CBRE Group, Inc. 691,479 5,630 697,109 Earnings per share: Basic income per share $ 2.05 $ 0.01 $ 2.06 Diluted income per share 2.03 0.02 2.05 Year Ended December 31, 2016 As Reported Adoption of New Revenue Recognition Guidance As Adjusted Revenue $ 13,071,589 $ 4,297,519 $ 17,369,108 Cost of services 9,123,727 4,297,184 13,420,911 Operating, administrative and other 2,781,310 (1,009 ) 2,780,301 Operating income 815,487 1,344 816,831 Income before provision for income taxes 880,726 1,344 882,070 Provision for income taxes 296,662 238 296,900 Net income 584,064 1,106 585,170 Net income attributable to CBRE Group, Inc. 571,973 1,106 573,079 Earnings per share: Basic income per share $ 1.71 $ — $ 1.71 Diluted income per share 1.69 — 1.69

FacilitySource Acquisition (Tab

FacilitySource Acquisition (Tables)	12 Months Ended
	Dec. 31, 2018
Business Combinations [Abstract]
Summary of Excess Purchase Price Over Estimated Fair Value of Net Assets Acquired	The following represents a summary of the excess purchase price over the estimated fair value of net assets acquired (dollars in thousands): Estimated purchase price $ 266,465 Add: Estimated fair value of net liabilities assumed (see table below) 8,632 Excess purchase price over estimated fair value of net assets acquired $ 275,097
Summary of Aggregate Estimated Fair Values of Assets Acquired and Liabilities Assumed	The following table summarizes the aggregate estimated fair values of the assets acquired and the liabilities assumed in the FacilitySource Acquisition (dollars in thousands): Assets Acquired: Cash and cash equivalents $ 2,627 Receivables, net 37,902 Prepaid expenses 477 Property and equipment 41,680 Other intangible assets 48,200 Other assets 114 Total assets acquired 131,000 Liabilities Assumed: Accounts payable and accrued expenses 48,273 Accrued bonus and profit sharing 5,036 Compensation and employee benefits payable 1,472 Line of credit and term loan 26,295 Deferred tax liabilities, net 57,428 Other liabilities 1,128 Total liabilities assumed 139,632 Estimated Fair Value of Net Liabilities Assumed $ (8,632 )
Summary of Preliminary Estimate of Amortizable Intangible Assets and Depreciable Computer Software Acquired	The following is a summary of the preliminary estimate of the amortizable intangible assets and depreciable computer software acquired in connection with the FacilitySource Acquisition (dollars in thousands): As of December 31, 2018 Asset Class Weighted Average Amortization/ Depreciation Period Amount Assigned at Acquisition Date Accumulated Amortization and Depreciation Net Carrying Value Intangibles Trade name 20 years $ 37,200 $ 1,007 $ 36,193 Customer relationships 6.67 years 11,000 894 10,106 Total amortizable intangible assets acquired 16.96 years $ 48,200 $ 1,901 $ 46,299 Property and Equipment Computer software 10 years $ 38,800 $ 2,102 $ 36,698
Certain Adjustments to Unaudited Pro Forma Results	They include certain adjustments for increased depreciation and amortization expense related to acquired computer software and intangible assets as well as increased interest expense associated with borrowings under our revolving credit facility used to fund the acquisition, as follows (dollars in thousands): Year Ended December 31, 2018 2017 2016 Depreciation expense $ 1,253 $ 3,054 $ 3,298 Amortization expense 1,019 2,190 2,190 Interest expense 2,748 6,098 6,098
Summary of Pro Forma Results Prepared for Comparative Purposes	These unaudited pro forma results have been prepared for comparative purposes only and do not purport to be indicative of what operating results would have been had the FacilitySource Acquisition occurred on January 1, 2016 and may not be indicative of future operating results (dollars in thousands, except share data): Year Ended December 31, 2018 2017 2016 Revenue $ 21,437,014 $ 18,778,312 $ 17,472,602 Operating income 1,089,738 1,058,834 794,495 Net income attributable to CBRE Group, Inc. 1,061,916 680,392 555,332 Basic income per share: Net income per share attributable to CBRE Group, Inc. $ 3.13 $ 2.02 $ 1.66 Weighted average shares outstanding for basic income per share 339,321,056 337,658,017 335,414,831 Diluted income per share: Net income per share attributable to CBRE Group, Inc. $ 3.09 $ 2.00 $ 1.64 Weighted average shares outstanding for diluted income per share 343,122,741 340,783,556 338,424,563

Warehouse Receivables & Wareh_2

Warehouse Receivables & Warehouse Lines of Credit (Tables)	12 Months Ended
	Dec. 31, 2018
Warehouse Receivables And Warehouse Lines Of Credit [Abstract]
Schedule of Warehouse Receivables	A rollforward of our warehouse receivables is as follows (dollars in thousands): Beginning balance at December 31, 2017 $ 928,038 Origination of mortgage loans 20,591,602 Gains (premiums on loan sales) 56,000 Proceeds from sale of mortgage loans: Sale of mortgage loans (20,174,676 ) Cash collections of premiums on loan sales (56,000 ) Proceeds from sale of mortgage loans (20,230,676 ) Net decrease in mortgage servicing rights included in warehouse receivables (2,496 ) Ending balance at December 31, 2018 $ 1,342,468
Summary of Warehouse Lines of Credit in Place	The following table is a summary of our warehouse lines of credit in place as of December 31, 2018 and 2017 (dollars in thousands): December 31, 2018 December 31, 2017 Lender Current Maturity Pricing Maximum Facility Size Carrying Value Maximum Facility Size Carrying Value JP Morgan Chase Bank, N.A. (JP Morgan) 10/21/2019 daily one-month LIBOR plus 1.30% $ 985,000 $ 871,680 $ 1,000,000 $ 192,180 JP Morgan 10/21/2019 daily one-month LIBOR plus 2.75% 15,000 — 25,000 5,800 Fannie Mae Multifamily As Soon As Pooled Plus Agreement and Multifamily As Soon As Pooled Sale Agreement (ASAP) Program Cancelable anytime daily one-month LIBOR plus 1.35%, with a LIBOR floor of 0.35% 450,000 149,089 450,000 205,827 TD Bank, N.A. (TD Bank) (1) 6/30/2019 daily one-month LIBOR plus 1.20% 400,000 165,945 800,000 225,416 Bank of America, N.A. (BofA) (2) 6/4/2019 daily one-month LIBOR plus 1.30% 425,000 21,852 337,500 130,443 Capital One, N.A. (Capital One) (3) 7/27/2019 daily one-month LIBOR plus 1.35% 325,000 120,195 387,500 151,100 $ 2,600,000 $ 1,328,761 $ 3,000,000 $ 910,766 (1) Line was temporarily increased from $400.0 million to $800.0 million to accommodate 2017 year-end volume. Maximum facility reverted to $400.0 million on February 1, 2018. (2) Line was temporarily increased from $225.0 million to $337.5 million to accommodate 2017 year-end volume. Maximum facility reverted back to $225.0 million on January 27, 2018. During 2018, an additional $200.0 million line of credit was added. (3) Line was temporarily increased from $200.0 million to $387.5 million to accommodate 2017 year-end volume. Maximum facility reverted back to $200.0 million on January 9, 2018. During 2018, the maximum facility size was increased to $325.0 million.

Variable Interest Entities (V_2

Variable Interest Entities (VIEs) (Tables)	12 Months Ended
	Dec. 31, 2018
Equity Method Investments And Joint Ventures [Abstract]
Schedule of Maximum Exposure to Loss	As of December 31, 2018 and 2017, our maximum exposure to loss related to the VIEs which are not consolidated was as follows (dollars in thousands): December 31, 2018 2017 Investments in unconsolidated subsidiaries $ 23,266 $ 26,273 Other current assets 3,827 3,401 Co-investment commitments 22,363 2,364 Maximum exposure to loss $ 49,456 $ 32,038

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities Measured at Fair Value on Recurring Basis	The following tables present the fair value of assets and liabilities measured at fair value on a recurring basis as of December 31, 2018 and 2017 (dollars in thousands): As of December 31, 2018 Fair Value Measured and Recorded Using Level 1 Level 2 Level 3 Total Assets Available for sale securities: Debt securities: U.S. treasury securities $ 3,138 $ — $ — $ 3,138 Debt securities issued by U.S. federal agencies — 11,196 — 11,196 Corporate debt securities — 27,201 — 27,201 Asset-backed securities — 5,017 — 5,017 Collateralized mortgage obligations — 2,224 — 2,224 Total available for sale debt securities 3,138 45,638 — 48,776 Equity securities 153,762 — — 153,762 Warehouse receivables — 1,342,468 — 1,342,468 Total assets at fair value $ 156,900 $ 1,388,106 $ — $ 1,545,006 Liabilities Interest rate swaps $ — $ 1,070 $ — $ 1,070 Securities sold, not yet purchased 3,133 — — 3,133 Total liabilities at fair value $ 3,133 $ 1,070 $ — $ 4,203 As of December 31, 2017 Fair Value Measured and Recorded Using Level 1 Level 2 Level 3 Total Assets Available for sale securities: Debt securities: U.S. treasury securities $ 3,820 $ — $ — $ 3,820 Debt securities issued by U.S. federal agencies — 4,901 — 4,901 Corporate debt securities — 20,023 — 20,023 Asset-backed securities — 3,577 — 3,577 Collateralized mortgage obligations — 2,366 — 2,366 Total available for sale debt securities 3,820 30,867 — 34,687 Equity securities 133,595 — — 133,595 Warehouse receivables — 928,038 — 928,038 Total assets at fair value $ 137,415 $ 958,905 $ — $ 1,096,320 Liabilities Interest rate swaps $ — $ 4,766 $ — $ 4,766 Securities sold, not yet purchased 3,431 — — 3,431 Foreign currency exchange forward contracts — 55 — 55 Total liabilities at fair value $ 3,431 $ 4,821 $ — $ 8,252

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2018
Property Plant And Equipment [Abstract]
Summary of Property and Equipment	Property and equipment consists of the following (dollars in thousands): December 31, Useful Lives 2018 2017 Computer hardware and software 3-10 years $ 838,301 $ 670,059 Leasehold improvements 1-15 years 472,952 415,947 Furniture and equipment 1-10 years 307,812 279,621 Equipment under capital leases 3-5 years 10,654 10,803 Total cost 1,629,719 1,376,430 Accumulated depreciation and amortization (908,027 ) (758,691 ) Property and equipment, net $ 721,692 $ 617,739

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Changes in Goodwill by Segment	The following table summarizes the changes in the carrying amount of goodwill for the years ended December 31, 2018 and 2017 (dollars in thousands): Americas EMEA Asia Pacific Global Investment Management Development Services Total Balance as of December 31, 2016: Goodwill $ 2,302,929 $ 1,047,295 $ 150,706 $ 462,305 $ 86,663 $ 4,049,898 Accumulated impairment losses (798,290 ) (138,631 ) — (44,922 ) (86,663 ) (1,068,506 ) 1,504,639 908,664 150,706 417,383 — 2,981,392 Purchase accounting entries related to acquisitions 104,654 17,402 4,198 17,568 — 143,822 Foreign exchange movement 993 91,761 11,204 25,568 — 129,526 Balance as of December 31, 2017: Goodwill 2,408,576 1,156,458 166,108 505,441 86,663 4,323,246 Accumulated impairment losses (798,290 ) (138,631 ) — (44,922 ) (86,663 ) (1,068,506 ) 1,610,286 1,017,827 166,108 460,519 — 3,254,740 Purchase accounting entries related to acquisitions 450,380 17,838 8,096 (5,110 ) — 471,204 Foreign exchange movement (1,623 ) (51,753 ) (8,556 ) (11,703 ) — (73,635 ) Balance as of December 31, 2018: Goodwill 2,857,333 1,122,543 165,648 488,628 86,663 4,720,815 Accumulated impairment losses (798,290 ) (138,631 ) — (44,922 ) (86,663 ) (1,068,506 ) $ 2,059,043 $ 983,912 $ 165,648 $ 443,706 $ — $ 3,652,309
Schedule of Intangible Assets	Other intangible assets totaled $1.4 billion, net of accumulated amortization of $1.2 billion as of December 31, 2018, and $1.4 billion, December 31, 2018 2017 Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Unamortizable intangible assets: Management contracts $ 86,585 $ 90,503 Trademarks 56,800 56,800 Trade names 16,250 16,250 159,635 163,553 Amortizable intangible assets: Customer relationships 843,387 $ (435,225 ) 802,597 $ (355,642 ) Mortgage servicing rights 697,322 (272,852 ) 608,757 (235,626 ) Trademarks/Trade name 312,699 (76,514 ) 321,406 (64,866 ) Management contracts 200,251 (135,835 ) 203,291 (122,450 ) Covenant not to compete 73,750 (73,750 ) 73,750 (57,358 ) Other 334,657 (186,217 ) 226,496 (164,796 ) 2,462,066 (1,180,393 ) 2,236,297 (1,000,738 ) Total intangible assets $ 2,621,701 $ (1,180,393 ) $ 2,399,850 $ (1,000,738 )

Investments in Unconsolidated_2

Investments in Unconsolidated Subsidiaries (Tables)	12 Months Ended
	Dec. 31, 2018
Equity Method Investments And Joint Ventures [Abstract]
Schedule of Condensed Financial Information of Equity Method Investments	Combined condensed financial information for the entities accounted for using the equity method is as follows (dollars in thousands): Condensed Balance Sheets Information: December 31, 2018 2017 Global Investment Management Current assets $ 824,884 $ 1,304,249 Non-current assets 16,296,613 15,369,496 Total assets $ 17,121,497 $ 16,673,745 Current liabilities $ 409,014 $ 526,777 Non-current liabilities 4,423,313 4,354,825 Total liabilities $ 4,832,327 $ 4,881,602 Non-controlling interests $ 261,654 $ 83,579 Development Services Current assets $ 3,058,166 $ 2,995,449 Non-current assets 99,728 102,508 Total assets $ 3,157,894 $ 3,097,957 Current liabilities $ 1,478,461 $ 1,451,239 Non-current liabilities 67,913 110,649 Total liabilities $ 1,546,374 $ 1,561,888 Other Current assets $ 48,061 $ 86,171 Non-current assets 182,564 76,577 Total assets $ 230,625 $ 162,748 Current liabilities $ 32,480 $ 54,211 Non-current liabilities 3,891 1,340 Total liabilities $ 36,371 $ 55,551 Total Current assets $ 3,931,111 $ 4,385,869 Non-current assets 16,578,905 15,548,581 Total assets $ 20,510,016 $ 19,934,450 Current liabilities $ 1,919,955 $ 2,032,227 Non-current liabilities 4,495,117 4,466,814 Total liabilities $ 6,415,072 $ 6,499,041 Non-controlling interests $ 261,654 $ 83,579 Condensed Statements of Operations Information: Year Ended December 31, 2018 2017 2016 Global Investment Management Revenue $ 1,199,641 $ 1,108,125 $ 1,184,573 Operating income 641,150 972,493 209,230 Net income 463,560 833,189 122,560 Development Services Revenue $ 124,175 $ 104,816 $ 85,594 Operating income 254,191 427,407 292,141 Net income 204,619 395,697 269,841 Other Revenue $ 200,869 $ 179,649 $ 156,035 Operating income 11,548 25,924 26,500 Net income 11,533 25,459 26,350 Total Revenue $ 1,524,685 $ 1,392,590 $ 1,426,202 Operating income 906,889 1,425,824 527,871 Net income 679,712 1,254,345 418,751

Long-Term Debt and Short-Term_2

Long-Term Debt and Short-Term Borrowings (Tables)	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Schedule of Long-Term Debt and Short-Term Borrowings	Total long-term debt and short-term borrowings consist of the following (dollars in thousands): December 31, 2018 2017 Long-Term Debt Senior term loans, with interest ranging from 0.75% to 3.38%, due through 2023 $ 758,452 $ 200,000 4.875% senior notes due in 2026, net of unamortized discount 596,653 596,273 5.25% senior notes due in 2025, net of unamortized premium 426,134 426,317 5.00% senior notes, redeemed in March 2018 — 800,000 Other 3,682 8 Total long-term debt 1,784,921 2,022,598 Less: current maturities of long-term debt (3,146 ) (8 ) Less: unamortized debt issuance costs (14,515 ) (22,987 ) Total long-term debt, net of current maturities $ 1,767,260 $ 1,999,603 Short-Term Borrowings Warehouse lines of credit, with interest ranging from 2.82% to 5.25%, due in 2019 $ 1,328,761 $ 910,766 Other — 16 Total short-term borrowings $ 1,328,761 $ 910,782

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2018
Commitments And Contingencies Disclosure [Abstract]
Schedule by Year of Future Minimum Lease Payments for Noncancelable Operating Leases	The following is a schedule by year of future minimum lease payments for noncancelable operating leases as of December 31, 2018 (dollars in thousands): 2019 $ 238,954 2020 219,351 2021 202,205 2022 172,267 2023 145,705 Thereafter 510,741 Total minimum payment required $ 1,489,223
Composition of Total Rental Expense under Noncancelable	The composition of total rental expense under noncancelable operating leases consisted of the following (dollars in thousands): Year Ended December 31, 2018 2017 2016 Minimum rentals $ 294,107 $ 276,676 $ 252,285 Less sublease rentals (2,808 ) (3,446 ) (4,322 ) $ 291,299 $ 273,230 $ 247,963

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2018
Compensation And Retirement Disclosure [Abstract]
Schedule of Fair Value of TSR Performance RSUs	We estimated the fair value of the TSR Performance RSUs referred to above on the date of the grant using a Monte Carlo simulation with the following assumptions: Year Ended December 31, 2018 2017 Volatility of common stock 25.02 % 27.85 % Expected dividend yield 0.00 % 0.00 % Risk-free interest rate 2.73 % 2.33 %
Schedule of Non-Vested Stock Awards	A summary of the status of our non-vested stock awards is presented in the table below: Shares/Units Weighted Average Market Value Per Share Balance at December 31, 2015 7,467,065 $ 29.08 Granted 1,496,408 29.24 Vested (3,840,379 ) 25.09 Forfeited (279,821 ) 28.62 Balance at December 31, 2016 4,843,273 31.66 Granted 5,152,082 40.11 Vested (2,020,812 ) 29.75 Forfeited (297,441 ) 32.85 Balance at December 31, 2017 7,677,102 37.76 Granted 2,023,266 45.70 Vested (1,894,847 ) 34.29 Forfeited (623,161 ) 40.85 Balance at December 31, 2018 7,182,360 41.04

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Components of Income Before Provision for Income Taxes	The components of income before provision for income taxes consisted of the following (dollars in thousands): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1 ) (As Adjusted) (1) Domestic $ 807,590 $ 575,222 $ 536,709 Foreign 571,416 596,111 345,361 $ 1,379,006 $ 1,171,333 $ 882,070
Tax Provision (Benefit)	Our tax provision (benefit) consisted of the following (dollars in thousands): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1 ) (As Adjusted) (1) Federal: Current $ 166,024 $ 275,475 $ 172,380 Deferred (7,667 ) 39,045 27,428 158,357 314,520 199,808 State: Current 43,320 21,212 20,946 Deferred (3,692 ) 5,573 375 39,628 26,785 21,321 Foreign: Current 149,194 123,840 94,910 Deferred (34,121 ) 2,612 (19,139 ) 115,073 126,452 75,771 $ 313,058 $ 467,757 $ 296,900 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information.
Reconciliation of Pre-Tax Income	The following is a reconciliation stated as a percentage of pre-tax income of the U.S. statutory federal income tax rate to our effective tax rate: Year Ended December 31, 2018 2017 2016 Federal statutory tax rate 21 % 35 % 35 % State taxes, net of federal benefit 3 2 2 Non-deductible expenses 2 2 — Tax Reform 1 12 — Change in valuation allowance (1 ) (2 ) 2 Acquisition-related costs (2 ) — — Credits and exemptions (2 ) (3 ) (2 ) Foreign rate differential — (5 ) (2 ) Reserves for uncertain tax positions — (2 ) — Other 1 1 (1 ) Effective tax rate 23 % 40 % 34 %
Temporary Tax Effects	Cumulative tax effects of temporary differences are shown below at December 31, 2018 and 2017 (dollars in thousands): December 31, 2018 2017 (As Adjusted) (1) Asset (Liability) Bonus and deferred compensation $ 276,572 $ 208,198 Net operating losses (NOLs) and state tax credits 275,574 283,353 Bad debt and other reserves 57,506 56,313 Pension obligation 22,950 22,148 Investments 5,211 5,573 Tax effect on revenue items related to new revenue recognition guidance (38,510 ) (55,306 ) Property and equipment (49,935 ) (40,024 ) Unconsolidated affiliates and partnerships (64,448 ) 6,267 Capitalized costs and intangibles (289,674 ) (256,087 ) All other (2,457 ) (1,441 ) Net deferred tax assets before valuation allowance 192,789 228,994 Valuation allowance (248,511 ) (277,466 ) Net deferred tax (liabilities) assets $ (55,722 ) $ (48,472 ) (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information.
Unrecognized Tax Benefits	A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2018 and 2017 is as follows (dollars in thousands): Year Ended December 31, 2018 2017 Beginning balance, unrecognized tax benefits $ (35,826 ) $ (94,915 ) Gross increases - tax positions in prior period (49,412 ) (1,400 ) Gross decreases - tax positions in prior period — 23,896 Gross increases - current-period tax positions (18,861 ) (4,142 ) Decreases relating to settlements 4,619 34,259 Reductions as a result of lapse of statute of limitations 4,531 6,497 Foreign exchange movement (13 ) (21 ) Ending balance, unrecognized tax benefits $ (94,962 ) $ (35,826 )

Income Per Share Information (T

Income Per Share Information (Tables)	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Calculation of Income Per Share	The following is a calculation of income per share (dollars in thousands, except share data): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1) (As Adjusted) (1) Basic Income Per Share Net income attributable to CBRE Group, Inc. shareholders $ 1,063,219 $ 697,109 $ 573,079 Weighted average shares outstanding for basic income per share 339,321,056 337,658,017 335,414,831 Basic income per share attributable to CBRE Group, Inc. shareholders $ 3.13 $ 2.06 $ 1.71 Diluted Income Per Share Net income attributable to CBRE Group, Inc. shareholders $ 1,063,219 $ 697,109 $ 573,079 Weighted average shares outstanding for basic income per share 339,321,056 337,658,017 335,414,831 Dilutive effect of contingently issuable shares 3,801,293 3,121,987 2,982,431 Dilutive effect of stock options 392 3,552 27,301 Weighted average shares outstanding for diluted income per share 343,122,741 340,783,556 338,424,563 Diluted income per share attributable to CBRE Group, Inc. shareholders $ 3.10 $ 2.05 $ 1.69 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	12 Months Ended
	Dec. 31, 2018
Revenue From Contract With Customer [Abstract]
Disaggregation of Revenue from Contracts with Customers	The following tables represent a disaggregation of revenue from contracts with customers for the years ended December 31, 2018, 2017 and 2016 by type of service and business segment (dollars in thousands): Year Ended December 31, 2018 Americas EMEA APAC Global Investment Management Development Services Consolidated Topic 606 Revenue: Occupier outsourcing $ 7,797,742 $ 4,030,257 $ 1,076,742 $ — $ — $ 12,904,741 Leasing 2,423,248 526,372 421,255 — 4,683 3,375,558 Sales 1,189,368 428,810 300,312 — 650 1,919,140 Property management 709,213 244,370 281,882 — 8,666 1,244,131 Valuation 261,559 187,515 111,741 — — 560,815 Commercial mortgage origination (1) 125,731 5,768 2,330 — — 133,829 Investment management — — — 434,405 — 434,405 Development services — — — — 86,320 86,320 Topic 606 Revenue 12,506,861 5,423,092 2,194,262 434,405 100,319 20,658,939 Out of Scope of Topic 606 Revenue: Commercial mortgage origination 402,607 — — — — 402,607 Loan servicing 172,096 10,755 570 — — 183,421 Other revenue 50,342 32,076 12,703 — — 95,121 Total Out of Scope of Topic 606 Revenue 625,045 42,831 13,273 — — 681,149 Total revenue $ 13,131,906 $ 5,465,923 $ 2,207,535 $ 434,405 $ 100,319 $ 21,340,088 Year Ended December 31, 2017 (As Adjusted) (2) Americas EMEA APAC Global Investment Management Development Services Consolidated Topic 606 Revenue: Occupier outsourcing $ 7,089,660 $ 3,101,518 $ 954,396 $ — $ — $ 11,145,574 Leasing 2,054,872 446,446 357,983 — 4,051 2,863,352 Sales 1,103,862 397,130 304,344 — 977 1,806,313 Property management 660,147 243,630 237,631 — 13,914 1,155,322 Valuation 245,179 165,082 117,377 — — 527,638 Commercial mortgage origination (1) 104,565 5,447 2,119 — — 112,131 Investment management — — — 377,644 — 377,644 Development services — — — — 60,513 60,513 Topic 606 Revenue 11,258,285 4,359,253 1,973,850 377,644 79,455 18,048,487 Out of Scope of Topic 606 Revenue: Commercial mortgage origination 338,390 — — — — 338,390 Loan servicing 146,460 10,989 — — — 157,449 Other revenue 48,242 26,583 9,636 — — 84,461 Total Out of Scope of Topic 606 Revenue 533,092 37,572 9,636 — — 580,300 Total revenue $ 11,791,377 $ 4,396,825 $ 1,983,486 $ 377,644 $ 79,455 $ 18,628,787 (1) We earn fees for arranging financing for borrowers with third-party lender contacts. Such fees are in scope of Topic 606. (2) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Year Ended December 31, 2016 (As Adjusted) (2) Americas EMEA APAC Global Investment Management Development Services Consolidated Topic 606 Revenue: Occupier outsourcing $ 6,570,559 $ 2,975,106 $ 828,194 $ — $ — $ 10,373,859 Leasing 1,924,361 411,005 312,184 — 4,436 2,651,986 Sales 1,103,452 334,398 261,320 — 1,333 1,700,503 Property management 621,452 221,904 203,176 — 9,502 1,056,034 Valuation 245,389 148,856 110,125 — — 504,370 Commercial mortgage origination (1) 112,797 2,881 2,136 — — 117,814 Investment management — — — 369,800 — 369,800 Development services — — — — 55,638 55,638 Topic 606 Revenue 10,578,010 4,094,150 1,717,135 369,800 70,909 16,830,004 Out of Scope of Topic 606 Revenue: Commercial mortgage origination 330,352 — — — — 330,352 Loan servicing 111,373 11,144 — — — 122,517 Other revenue 50,230 23,612 12,393 — — 86,235 Total Out of Scope of Topic 606 Revenue 491,955 34,756 12,393 — — 539,104 Total revenue $ 11,069,965 $ 4,128,906 $ 1,729,528 $ 369,800 $ 70,909 $ 17,369,108 (1) We earn fees for arranging financing for borrowers with third-party lender contacts. Such fees are in scope of Topic 606. (2) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information.

Segments (Tables)

Segments (Tables)	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Summarized Financial Information by Segment	Summarized financial information by segment is as follows (dollars in thousands): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1) (As Adjusted) (1) (2) Revenue Americas $ 13,131,906 $ 11,791,377 $ 11,069,965 EMEA 5,465,923 4,396,825 4,128,906 Asia Pacific 2,207,535 1,983,486 1,729,528 Global Investment Management 434,405 377,644 369,800 Development Services 100,319 79,455 70,909 Total revenue $ 21,340,088 $ 18,628,787 $ 17,369,108 Depreciation and Amortization Americas $ 327,556 $ 289,338 $ 254,118 EMEA 80,290 72,322 66,619 Asia Pacific 20,297 18,258 17,810 Global Investment Management 23,017 24,123 25,911 Development Services 828 2,073 2,469 Total depreciation and amortization $ 451,988 $ 406,114 $ 366,927 Year Ended December 31, 2018 2017 2016 (As Adjusted) (1) (As Adjusted) (1) (2) Equity Income from Unconsolidated Subsidiaries Americas $ 14,177 $ 18,789 $ 17,892 EMEA 1,523 1,553 1,817 Asia Pacific 433 397 223 Global Investment Management 6,131 7,923 7,243 Development Services 302,400 181,545 170,176 Total equity income from unconsolidated subsidiaries $ 324,664 $ 210,207 $ 197,351 Adjusted EBITDA Americas $ 1,111,014 $ 1,011,643 $ 950,573 EMEA 329,522 309,233 272,894 Asia Pacific 197,684 180,043 142,299 Global Investment Management 78,469 94,373 83,150 Development Services 188,479 121,482 113,431 Total Adjusted EBITDA $ 1,905,168 $ 1,716,774 $ 1,562,347 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information (2) In 2017, we changed the presentation of the operating results of one of our emerging businesses among our regional services reporting segments. 2016 amounts were reclassified to conform with the 2017 presentation. This change had no impact on our consolidated results.
Adjusted EBITDA Calculation by Segment	Adjusted EBITDA is calculated as follows (dollars in thousands): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1) (As Adjusted) (1) Net income attributable to CBRE Group, Inc. $ 1,063,219 $ 697,109 $ 573,079 Add: Depreciation and amortization 451,988 406,114 366,927 Interest expense 107,270 136,814 144,851 Write-off of financing costs on extinguished debt 27,982 — — Provision for income taxes 313,058 467,757 296,900 Less: Interest income 8,585 9,853 8,051 EBITDA 1,954,932 1,697,941 1,373,706 Adjustments: Costs associated with our reorganization, including cost-savings initiatives (2) 37,925 — — Integration and other costs related to acquisitions 9,124 27,351 125,743 Costs incurred in connection with litigation settlement 8,868 — — Carried interest incentive compensation reversal to align with the timing of associated revenue (5,261 ) (8,518 ) (15,558 ) One-time gain associated with remeasuring an investment in an unconsolidated subsidiary to fair value as of the date the remaining controlling interest was acquired (100,420 ) — — Cost-elimination expenses (3) — — 78,456 Adjusted EBITDA $ 1,905,168 $ 1,716,774 $ 1,562,347 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. (2) Primarily represents severance costs related to headcount reductions in connection with our reorganization announced in the third quarter of 2018 that became effective January 1, 2019. (3) Represents cost-elimination expenses relating to a program initiated in the fourth quarter of 2015 and completed in the third quarter of 2016 (our cost-elimination project) to reduce the company’s global cost structure after several years of significant revenue and related cost growth. Cost-elimination expenses incurred during the year ended December 31, 2016 consisted of $73.6 million of severance costs related to headcount reductions in connection with the program and $4.9 million of third-party contract termination costs. The total amount for each period does have a cash impact.
Schedule of Capital Expenditures by Segment	Year Ended December 31, 2018 2017 2016 Capital Expenditures Americas $ 131,055 $ 127,135 $ 134,046 EMEA 63,947 28,716 35,452 Asia Pacific 17,122 19,360 19,179 Global Investment Management 15,348 2,776 2,273 Development Services 331 55 255 Total capital expenditures $ 227,803 $ 178,042 $ 191,205
Schedule of Identifiable Assets by Segment	December 31, 2018 2017 (As Adjusted) (1) Identifiable Assets Americas $ 7,432,532 $ 5,808,332 EMEA 3,168,050 3,013,586 Asia Pacific 978,331 894,066 Global Investment Management 1,018,999 1,075,691 Development Services 166,864 176,971 Corporate 692,017 749,750 Total identifiable assets $ 13,456,793 $ 11,718,396 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information.
Schedule of Investments in Unconsolidated Subsidiaries by Segment	Identifiable assets by segment are those assets used in our operations in each segment. Corporate identifiable assets primarily include cash and cash equivalents available for general corporate use and net deferred tax assets. December 31, 2018 2017 Investments in Unconsolidated Subsidiaries Americas $ 41,446 $ 39,105 EMEA 864 852 Asia Pacific 6,845 6,581 Global Investment Management 77,926 83,430 Development Services 89,093 108,033 Total investments in unconsolidated subsidiaries $ 216,174 $ 238,001
Summary of Geographic Information	Revenue in the table below is allocated based upon the country in which services are performed (dollars in thousands): Year Ended December 31, 2018 2017 2016 (As Adjusted) (1) (As Adjusted) (1) Revenue United States $ 12,264,188 $ 10,954,608 $ 10,434,782 United Kingdom 2,586,890 2,242,973 2,150,428 All other countries 6,489,010 5,431,206 4,783,898 Total revenue $ 21,340,088 $ 18,628,787 $ 17,369,108 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. The long-lived assets in the table below are comprised of net property and equipment (dollars in thousands). December 31, 2018 2017 Property and Equipment, Net United States $ 512,110 $ 432,102 United Kingdom 71,119 61,335 All other countries 138,463 124,302 Total property and equipment, net $ 721,692 $ 617,739

Guarantor and Nonguarantor Fi_2

Guarantor and Nonguarantor Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Condensed Consolidating Balance Sheet	Condensed Consolidating Balance Sheet As of December 31, 2018 Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total ASSETS Current Assets: Cash and cash equivalents $ 7 $ 34,063 $ 261,181 $ 481,968 $ — $ 777,219 Restricted cash — — 13,767 72,958 — 86,725 Receivables, net — 5 1,340,120 2,328,466 — 3,668,591 Warehouse receivables (1) — — 664,095 678,373 — 1,342,468 Contract assets — — 289,214 17,806 — 307,020 Prepaid expenses — — 122,305 132,587 — 254,892 Income taxes receivable 6,099 — 18,992 52,692 (6,099 ) 71,684 Other current assets — — 56,853 188,758 — 245,611 Total Current Assets 6,106 34,068 2,766,527 3,953,608 (6,099 ) 6,754,210 Property and equipment, net — — 512,110 209,582 — 721,692 Goodwill — — 2,224,909 1,427,400 — 3,652,309 Other intangible assets, net — — 835,270 606,038 — 1,441,308 Investments in unconsolidated subsidiaries — — 170,698 45,476 — 216,174 Investments in consolidated subsidiaries 6,759,815 5,595,831 3,228,512 — (15,584,158 ) — Intercompany loan receivable — 2,440,775 700,000 711,244 (3,852,019 ) — Deferred tax assets, net — — 2,666 51,755 (2,718 ) 51,703 Other assets, net — 18,257 483,790 117,350 — 619,397 Total Assets $ 6,765,921 $ 8,088,931 $ 10,924,482 $ 7,122,453 $ (19,444,994 ) $ 13,456,793 LIABILITIES AND EQUITY Current Liabilities: Accounts payable and accrued expenses $ 40 $ 17,450 $ 655,582 $ 1,246,755 $ — $ 1,919,827 Accrued bonus and profit sharing — — 685,521 503,874 — 1,189,395 Compensation and employee benefits payable — — 662,196 458,983 — 1,121,179 Contract liabilities — — 41,045 41,182 — 82,227 Income taxes payable — 720 6,417 67,062 (6,099 ) 68,100 Short-term borrowings: Warehouse lines of credit (which fund loans that U.S. Government Sponsored Enterprises have committed to purchase) (1) — — 657,731 671,030 — 1,328,761 Total short-term borrowings — — 657,731 671,030 — 1,328,761 Current maturities of long-term debt — — 39 3,107 — 3,146 Other current liabilities — 1,070 70,202 19,473 — 90,745 Total Current Liabilities 40 19,240 2,778,733 3,011,466 (6,099 ) 5,803,380 Long-Term Debt, net: Long-term debt, net — 1,309,876 18 457,366 — 1,767,260 Intercompany loan payable 1,827,084 — 2,024,935 — (3,852,019 ) — Total Long-Term Debt, net 1,827,084 1,309,876 2,024,953 457,366 (3,852,019 ) 1,767,260 Non-current tax liabilities — — 164,857 7,769 — 172,626 Deferred tax liabilities, net — — — 110,143 (2,718 ) 107,425 Other liabilities — — 360,108 236,092 — 596,200 Total Liabilities 1,827,124 1,329,116 5,328,651 3,822,836 (3,860,836 ) 8,446,891 Commitments and contingencies — — — — — — Equity: CBRE Group, Inc. Stockholders’ Equity 4,938,797 6,759,815 5,595,831 3,228,512 (15,584,158 ) 4,938,797 Non-controlling interests — — — 71,105 — 71,105 Total Equity 4,938,797 6,759,815 5,595,831 3,299,617 (15,584,158 ) 5,009,902 Total Liabilities and Equity $ 6,765,921 $ 8,088,931 $ 10,924,482 $ 7,122,453 $ (19,444,994 ) $ 13,456,793 (1) Although CBRE Capital Markets is included among our domestic subsidiaries that jointly and severally guarantee our 4.875% senior notes, 5.25% senior notes and our 2017 Credit Agreement, a substantial majority of warehouse receivables funded under JP Morgan, TD Bank, Fannie Mae ASAP, Capital One and BofA lines of credit are pledged to JP Morgan, TD Bank, Fannie Mae, Capital One and BofA, and accordingly, are not included as collateral for these notes or our other outstanding debt. Condensed Consolidating Balance Sheet As of December 31, 2017 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total ASSETS Current Assets: Cash and cash equivalents $ 7 $ 15,604 $ 112,048 $ 624,115 $ — $ 751,774 Restricted cash — — 2,095 70,950 — 73,045 Receivables, net — — 990,923 2,121,366 — 3,112,289 Warehouse receivables (2) — — 479,628 448,410 — 928,038 Contract assets — — 263,756 9,297 — 273,053 Prepaid expenses — — 81,106 134,230 — 215,336 Income taxes receivable 2,162 — — 49,628 (2,162 ) 49,628 Other current assets — — 50,556 176,865 — 227,421 Total Current Assets 2,169 15,604 1,980,112 3,634,861 (2,162 ) 5,630,584 Property and equipment, net — — 431,755 185,984 — 617,739 Goodwill — — 1,774,529 1,480,211 — 3,254,740 Other intangible assets, net — — 751,930 647,182 — 1,399,112 Investments in unconsolidated subsidiaries — — 197,395 40,606 — 238,001 Investments in consolidated subsidiaries 5,551,781 4,930,109 3,066,303 — (13,548,193 ) — Intercompany loan receivable — 2,621,330 700,000 — (3,321,330 ) — Deferred tax assets, net — — 5,300 98,746 (5,300 ) 98,746 Other assets, net — 22,810 348,191 108,473 — 479,474 Total Assets $ 5,553,950 $ 7,589,853 $ 9,255,515 $ 6,196,063 $ (16,876,985 ) $ 11,718,396 LIABILITIES AND EQUITY Current Liabilities: Accounts payable and accrued expenses $ — $ 29,708 $ 404,367 $ 1,139,597 $ — $ 1,573,672 Accrued bonus and profit sharing — — 590,534 487,811 — 1,078,345 Compensation and employee benefits payable — 626 479,306 424,502 — 904,434 Contract liabilities — — 42,994 57,621 — 100,615 Income taxes payable — 3,314 13,704 55,778 (2,162 ) 70,634 Short-term borrowings: Warehouse lines of credit (which fund loans that U.S. Government Sponsored Enterprises have committed to purchase) (2) — — 474,195 436,571 — 910,766 Other — — 16 — — 16 Total short-term borrowings — — 474,211 436,571 — 910,782 Current maturities of long-term debt — — — 8 — 8 Other current liabilities — 55 56,260 18,139 — 74,454 Total Current Liabilities — 33,703 2,061,376 2,620,027 (2,162 ) 4,712,944 Long-Term Debt, net: Long-term debt, net — 1,999,603 — — — 1,999,603 Intercompany loan payable 1,439,454 — 1,798,550 83,326 (3,321,330 ) — Total Long-Term Debt, net 1,439,454 1,999,603 1,798,550 83,326 (3,321,330 ) 1,999,603 Non-current tax liabilities — — 135,396 5,396 — 140,792 Deferred tax liabilities, net — — 29,785 122,733 (5,300 ) 147,218 Other liabilities — 4,766 300,299 238,160 — 543,225 Total Liabilities 1,439,454 2,038,072 4,325,406 3,069,642 (3,328,792 ) 7,543,782 Commitments and contingencies — — — — — — Equity: CBRE Group, Inc. Stockholders’ Equity 4,114,496 5,551,781 4,930,109 3,066,303 (13,548,193 ) 4,114,496 Non-controlling interests — — — 60,118 — 60,118 Total Equity 4,114,496 5,551,781 4,930,109 3,126,421 (13,548,193 ) 4,174,614 Total Liabilities and Equity $ 5,553,950 $ 7,589,853 $ 9,255,515 $ 6,196,063 $ (16,876,985 ) $ 11,718,396 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. (2) Although CBRE Capital Markets is included among our domestic subsidiaries that jointly and severally guarantee our 5.00% senior notes, 4.875% senior notes, 5.25% senior notes and our 2015 Credit Agreement, a substantial majority of warehouse receivables funded under BofA, Fannie Mae ASAP, JP Morgan, Capital One and TD Bank lines of credit are pledged to BofA, Fannie Mae, JP Morgan, Capital One and TD Bank, and accordingly, are not included as collateral for these notes or our other outstanding debt.
Condensed Consolidating Statement of Operations	Condensed Consolidating Statement of Operations For the Year Ended December 31, 2018 Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Revenue $ — $ — $ 11,998,469 $ 9,341,619 $ — $ 21,340,088 Costs and expenses: Cost of services — — 9,513,947 6,935,265 — 16,449,212 Operating, administrative and other 24,523 1,156 1,773,860 1,566,234 — 3,365,773 Depreciation and amortization — — 271,378 180,610 — 451,988 Total costs and expenses 24,523 1,156 11,559,185 8,682,109 — 20,266,973 Gain on disposition of real estate — — 7,705 7,169 — 14,874 Operating (loss) income (24,523 ) (1,156 ) 446,989 666,679 — 1,087,989 Equity income from unconsolidated subsidiaries — — 323,080 1,584 — 324,664 Other income (loss) — 1 103,657 (10,638 ) — 93,020 Interest income — 134,259 6,805 214,780 (347,259 ) 8,585 Interest expense — 102,228 328,638 23,663 (347,259 ) 107,270 Write-off of financing costs on extinguished debt — 27,982 — — — 27,982 Royalty and management service (income) expense — — (111,883 ) 111,883 — — Income from consolidated subsidiaries 1,081,643 1,079,469 579,523 — (2,740,635 ) — Income before (benefit of) provision for income taxes 1,057,120 1,082,363 1,243,299 736,859 (2,740,635 ) 1,379,006 (Benefit of) provision for income taxes (6,099 ) 720 163,830 154,607 — 313,058 Net income 1,063,219 1,081,643 1,079,469 582,252 (2,740,635 ) 1,065,948 Less: Net income attributable to non-controlling interests — — — 2,729 — 2,729 Net income attributable to CBRE Group, Inc. $ 1,063,219 $ 1,081,643 $ 1,079,469 $ 579,523 $ (2,740,635 ) $ 1,063,219 Condensed Consolidating Statement of Operations For the Year Ended December 31, 2017 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Revenue $ — $ — $ 10,702,005 $ 7,926,782 $ — $ 18,628,787 Costs and expenses: Cost of services — — 8,517,114 5,787,985 — 14,305,099 Operating, administrative and other 5,661 1,972 1,485,605 1,365,482 — 2,858,720 Depreciation and amortization — — 239,863 166,251 — 406,114 Total costs and expenses 5,661 1,972 10,242,582 7,319,718 — 17,569,933 Gain on disposition of real estate — — 6,037 13,791 — 19,828 Operating (loss) income (5,661 ) (1,972 ) 465,460 620,855 — 1,078,682 Equity income from unconsolidated subsidiaries — — 206,655 3,552 — 210,207 Other income — 1 22 9,382 — 9,405 Interest income — 143,425 5,453 4,400 (143,425 ) 9,853 Interest expense — 132,777 115,947 31,515 (143,425 ) 136,814 Royalty and management service expense (income) — — 15,950 (15,950 ) — — Income from consolidated subsidiaries 700,608 695,245 461,769 — (1,857,622 ) — Income before (benefit of) provision for income taxes 694,947 703,922 1,007,462 622,624 (1,857,622 ) 1,171,333 (Benefit of) provision for income taxes (2,162 ) 3,314 312,217 154,388 — 467,757 Net income 697,109 700,608 695,245 468,236 (1,857,622 ) 703,576 Less: Net income attributable to non-controlling interests — — — 6,467 — 6,467 Net income attributable to CBRE Group, Inc. $ 697,109 $ 700,608 $ 695,245 $ 461,769 $ (1,857,622 ) $ 697,109 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Condensed Consolidating Statement of Operations For the Year Ended December 31, 2016 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Revenue $ — $ — $ 10,169,361 $ 7,199,747 $ — $ 17,369,108 Costs and expenses: Cost of services — — 8,133,496 5,287,415 — 13,420,911 Operating, administrative and other 5,003 (8,231 ) 1,454,435 1,329,094 — 2,780,301 Depreciation and amortization — — 225,552 141,375 — 366,927 Total costs and expenses 5,003 (8,231 ) 9,813,483 6,757,884 — 16,568,139 Gain on disposition of real estate — — 3,669 12,193 — 15,862 Operating (loss) income (5,003 ) 8,231 359,547 454,056 — 816,831 Equity income from unconsolidated subsidiaries — — 192,811 4,540 — 197,351 Other income (loss) — 1 (89 ) 4,776 — 4,688 Interest income — 131,132 50,272 5,146 (178,499 ) 8,051 Interest expense — 184,738 97,815 40,797 (178,499 ) 144,851 Royalty and management service (income) expense — — (39,182 ) 39,182 — — Income from consolidated subsidiaries 576,167 604,177 242,732 — (1,423,076 ) — Income before (benefit of) provision for income taxes 571,164 558,803 786,640 388,539 (1,423,076 ) 882,070 (Benefit of) provision for income taxes (1,915 ) (17,364 ) 182,463 133,716 — 296,900 Net income 573,079 576,167 604,177 254,823 (1,423,076 ) 585,170 Less: Net income attributable to non-controlling interests — — — 12,091 — 12,091 Net income attributable to CBRE Group, Inc. $ 573,079 $ 576,167 $ 604,177 $ 242,732 $ (1,423,076 ) $ 573,079 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information.
Condensed Consolidating Statement of Comprehensive Income (Loss)	Condensed Consolidating Statement of Comprehensive Income For the Year Ended December 31, 2018 Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Net income $ 1,063,219 $ 1,081,643 $ 1,079,469 $ 582,252 $ (2,740,635 ) $ 1,065,948 Other comprehensive income (loss): Foreign currency translation loss — — — (161,384 ) — (161,384 ) Adoption of Accounting Standards Update 2016-01, net — — (3,964 ) — — (3,964 ) Amounts reclassified from accumulated other comprehensive loss to interest expense, net — 2,439 — — — 2,439 Unrealized gains on interest rate swaps, net — 708 — — — 708 Unrealized holding losses on available for sale debt securities, net — — (971 ) — — (971 ) Pension liability adjustments, net — — — 1,315 — 1,315 Other, net — — 7 (5,077 ) — (5,070 ) Total other comprehensive income (loss) — 3,147 (4,928 ) (165,146 ) — (166,927 ) Comprehensive income 1,063,219 1,084,790 1,074,541 417,106 (2,740,635 ) 899,021 Less: Comprehensive income attributable to non-controlling interests — — — 1,657 — 1,657 Comprehensive income attributable to CBRE Group, Inc. $ 1,063,219 $ 1,084,790 $ 1,074,541 $ 415,449 $ (2,740,635 ) $ 897,364 Condensed Consolidating Statement of Comprehensive Income For the Year Ended December 31, 2017 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Net income $ 697,109 $ 700,608 $ 695,245 $ 468,236 $ (1,857,622 ) $ 703,576 Other comprehensive (loss) income: Foreign currency translation gain — — — 218,001 — 218,001 Amounts reclassified from accumulated other comprehensive loss to interest expense, net — 4,964 — — — 4,964 Unrealized gains on interest rate swaps, net — 585 — — — 585 Unrealized holding gains on available for sale debt securities, net — — 2,557 180 — 2,737 Pension liability adjustments, net — — — 12,701 — 12,701 Other, net (2 ) — (21 ) 387 — 364 Total other comprehensive (loss) income (2 ) 5,549 2,536 231,269 — 239,352 Comprehensive income 697,107 706,157 697,781 699,505 (1,857,622 ) 942,928 Less: Comprehensive income attributable to non-controlling interests — — — 6,879 — 6,879 Comprehensive income attributable to CBRE Group, Inc. $ 697,107 $ 706,157 $ 697,781 $ 692,626 $ (1,857,622 ) $ 936,049 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Condensed Consolidating Statement of Comprehensive Income (Loss ) For the Year Ended December 31, 2016 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Eliminations Consolidated Total Net income $ 573,079 $ 576,167 $ 604,177 $ 254,823 $ (1,423,076 ) $ 585,170 Other comprehensive income (loss): Foreign currency translation loss — — — (235,614 ) — (235,614 ) Amounts reclassified from accumulated other comprehensive loss to interest expense, net — 6,839 — — — 6,839 Unrealized losses on interest rate swaps, net — (1,431 ) — — — (1,431 ) Unrealized holding gains on available for sale debt securities, net — — 180 204 — 384 Pension liability adjustments, net — — — (63,749 ) — (63,749 ) Other, net — — (759 ) (11,332 ) — (12,091 ) Total other comprehensive income (loss) — 5,408 (579 ) (310,491 ) — (305,662 ) Comprehensive income (loss) 573,079 581,575 603,598 (55,668 ) (1,423,076 ) 279,508 Less: Comprehensive income attributable to non-controlling interests — — — 12,108 — 12,108 Comprehensive income (loss) attributable to CBRE Group, Inc. $ 573,079 $ 581,575 $ 603,598 $ (67,776 ) $ (1,423,076 ) $ 267,400 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information.
Condensed Consolidating Statement of Cash Flows	Condensed Consolidating Statement of Cash Flow For the Year Ended December 31, 2018 Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Consolidated Total CASH FLOWS PROVIDED BY OPERATING ACTIVITIES: $ 105,850 $ 21,834 $ 429,540 $ 574,025 $ 1,131,249 CASH FLOWS FROM INVESTING ACTIVITIES: Capital expenditures — — (140,670 ) (87,133 ) (227,803 ) Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired — — (305,315 ) (17,258 ) (322,573 ) Contributions to unconsolidated subsidiaries — — (51,046 ) (11,756 ) (62,802 ) Distributions from unconsolidated subsidiaries — — 57,269 4,440 61,709 Net proceeds from disposition of real estate held for investment — — — 14,174 14,174 Purchase of equity securities — — (21,402 ) — (21,402 ) Proceeds from sale of equity securities — — 16,314 — 16,314 Purchase of available for sale debt securities — — (23,360 ) — (23,360 ) Proceeds from the sale of available for sale debt securities — — 5,792 — 5,792 Other investing activities, net — — 2,793 (3,526 ) (733 ) Net cash used in investing activities — — (459,625 ) (101,059 ) (560,684 ) CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from senior term loans — 550,000 — 452,745 1,002,745 Repayment of senior term loans — (450,000 ) — — (450,000 ) Proceeds from revolving credit facility — 3,258,000 — — 3,258,000 Repayment of revolving credit facility — (3,258,000 ) — — (3,258,000 ) Repayment of 5.00% senior notes (including premium) — (820,000 ) — — (820,000 ) Proceeds from notes payable on real estate — — — 7,599 7,599 Repayment of notes payable on real estate — — — (19,058 ) (19,058 ) Repayment of debt assumed in acquisition of FacilitySource — — (26,295 ) — (26,295 ) Repurchase of common stock (161,034 ) — — — (161,034 ) Acquisition of businesses (cash paid for acquisitions more than three months after purchase date) — — (16,774 ) (1,886 ) (18,660 ) Units repurchased for payment of taxes on equity awards (29,386 ) — — — (29,386 ) Non-controlling interest contributions — — — 25,355 25,355 Non-controlling interest distributions — — — (13,413 ) (13,413 ) Payment of financing costs — (212 ) — (1,876 ) (2,088 ) Decrease (increase) in intercompany receivables, net 84,213 716,837 233,975 (1,035,025 ) — Other financing activities, net 357 — (16 ) (2,706 ) (2,365 ) Net cash (used in) provided by financing activities (105,850 ) (3,375 ) 190,890 (588,265 ) (506,600 ) Effect of currency exchange rate changes on cash and cash equivalents and restricted cash — — — (24,840 ) (24,840 ) NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH — 18,459 160,805 (140,139 ) 39,125 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD 7 15,604 114,143 695,065 824,819 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD $ 7 $ 34,063 $ 274,948 $ 554,926 $ 863,944 SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: Cash paid during the period for: Interest $ — $ 102,491 $ — $ 1,674 $ 104,165 Income taxes, net $ — $ — $ 198,930 $ 176,919 $ 375,849 Condensed Consolidating Statement of Cash Flows For the Year Ended December 31, 2017 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Consolidated Total CASH FLOWS PROVIDED BY OPERATING ACTIVITIES: $ 89,341 $ 37,990 $ 424,787 $ 342,293 $ 894,411 CASH FLOWS FROM INVESTING ACTIVITIES: Capital expenditures — — (121,347 ) (56,695 ) (178,042 ) Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired — — (87,248 ) (31,179 ) (118,427 ) Contributions to unconsolidated subsidiaries — — (63,119 ) (5,581 ) (68,700 ) Distributions from unconsolidated subsidiaries — — 52,896 10,768 63,664 Purchase of equity securities — — (15,584 ) — (15,584 ) Proceeds from sale of equity securities — — 15,587 — 15,587 Purchase of available for sale debt securities — — (19,280 ) — (19,280 ) Proceeds from the sale of available for sale debt securities — — 15,790 — 15,790 Other investing activities, net — — 1,968 424 2,392 Net cash used in investing activities — — (220,337 ) (82,263 ) (302,600 ) CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from senior term loans — 200,000 — — 200,000 Repayment of senior term loans — (751,876 ) — — (751,876 ) Proceeds from revolving credit facility — 1,521,000 — — 1,521,000 Repayment of revolving credit facility — (1,521,000 ) — — (1,521,000 ) Proceeds from notes payable on real estate — — — 4,333 4,333 Repayment of notes payable on real estate — — — (12,556 ) (12,556 ) Acquisition of businesses (cash paid for acquisitions more than three months after purchase date) — — (19,854 ) (4,152 ) (24,006 ) Units repurchased for payment of taxes on equity awards (29,549 ) — — — (29,549 ) Non-controlling interest contributions — — — 5,301 5,301 Non-controlling interest distributions — — — (8,715 ) (8,715 ) Payment of financing costs — (7,978 ) — (21 ) (7,999 ) (Increase) decrease in intercompany receivables, net (60,271 ) 520,579 (338,396 ) (121,912 ) — Other financing activities, net 479 — (3,145 ) (9 ) (2,675 ) Net cash used in financing activities (89,341 ) (39,275 ) (361,395 ) (137,731 ) (627,742 ) Effect of currency exchange rate changes on cash and cash equivalents and restricted cash — — — 29,338 29,338 NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH — (1,285 ) (156,945 ) 151,637 (6,593 ) CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD 7 16,889 271,088 543,428 831,412 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD $ 7 $ 15,604 $ 114,143 $ 695,065 $ 824,819 SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: Cash paid during the period for: Interest $ — $ 117,072 $ — $ 92 $ 117,164 Income taxes, net $ — $ — $ 198,520 $ 158,477 $ 356,997 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information. Condensed Consolidating Statement of Cash Flows For the Year Ended December 31, 2016 (As Adjusted) (1) Parent CBRE Services Guarantor Subsidiaries Nonguarantor Subsidiaries Consolidated Total CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: $ 84,393 $ (23,643 ) $ 296,501 $ 259,734 $ 616,985 CASH FLOWS FROM INVESTING ACTIVITIES: Capital expenditures — — (115,049 ) (76,156 ) (191,205 ) Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired — — (2,191 ) (18,886 ) (21,077 ) Contributions to unconsolidated subsidiaries — — (47,192 ) (19,624 ) (66,816 ) Distributions from unconsolidated subsidiaries — — 39,340 7,435 46,775 Net proceeds from disposition of real estate held for investment — — — 44,326 44,326 Purchase of equity securities — — (15,506 ) — (15,506 ) Proceeds from sale of equity securities — — 16,954 — 16,954 Purchase of available for sale debt securities — — (22,155 ) — (22,155 ) Proceeds from the sale of available for sale debt securities — — 18,097 — 18,097 Other investing activities, net — — 19,178 20,905 40,083 Net cash used in investing activities — — (108,524 ) (42,000 ) (150,524 ) CASH FLOWS FROM FINANCING ACTIVITIES: Repayment of senior term loans — (136,250 ) — — (136,250 ) Proceeds from revolving credit facility — 2,909,000 — — 2,909,000 Repayment of revolving credit facility — (2,909,000 ) — — (2,909,000 ) Proceeds from notes payable on real estate — — — 25,001 25,001 Repayment of notes payable on real estate — — — (38,046 ) (38,046 ) Acquisition of businesses (cash paid for acquisitions more than three months after purchase date) — — (1,125 ) (19,909 ) (21,034 ) Units repurchased for payment of taxes on equity awards (27,426 ) — — — (27,426 ) Non-controlling interest contributions — — — 2,272 2,272 Non-controlling interest distributions — — — (19,133 ) (19,133 ) Payment of financing costs — (5,459 ) — (159 ) (5,618 ) (Increase) decrease in intercompany receivables, net (57,880 ) 173,762 (68,422 ) (47,460 ) — Other financing activities, net 915 — (1,173 ) (185 ) (443 ) Net cash (used in) provided by financing activities (84,391 ) 32,053 (70,720 ) (97,619 ) (220,677 ) Effect of currency exchange rate changes on cash and cash equivalents and restricted cash — — — (27,539 ) (27,539 ) NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH 2 8,410 117,257 92,576 218,245 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD 5 8,479 153,831 450,852 613,167 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD $ 7 $ 16,889 $ 271,088 $ 543,428 $ 831,412 SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: Cash paid during the period for: Interest $ — $ 122,605 $ — $ 3,195 $ 125,800 Income taxes, net $ — $ — $ 174,164 $ 120,684 $ 294,848 (1) We adopted new revenue recognition guidance in the first quarter of 2018. Certain restatements have been made to the 2017 and 2016 financial statements to conform with the 2018 presentation. See Notes 2 and 3 for more information.

Nature of Operations - Addition

Nature of Operations - Additional Information (Detail) - Minimum [Member]	12 Months Ended
	Dec. 31, 2018EmployeeOffice
Schedule Of Description Of Business [Line Items]
Number of offices | Office	480
Number of employees | Employee	90,000

Significant Accounting Polici_4

Significant Accounting Policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Mar. 21, 2016	Jan. 01, 2016	Mar. 14, 2013
Summary Of Significant Accounting Policies [Line Items]
Other than temporary impairment losses	$ 0	$ 0	$ 0
Cash unavailable for general corporate use	155,200,000	123,800,000
Restricted cash	86,725,000	73,045,000
Client deposit held	$ 5,900,000,000	$ 4,000,000,000
Amortization period of financing costs, maximum	10 years	10 years
Total deferred financing costs, net of accumulated amortization	$ 18,300,000	$ 23,000,000
Write-off of financing costs on extinguished debt	27,982,000
Estimated fair value of mortgage servicing rights	554,200,000	446,300,000
Mortgage servicing rights, impairment charges	0	0	0
Servicing fees from loans serviced for others	20,658,939,000	18,048,487,000	16,830,004,000
Prepayment fees/late fees/ancillary income earned from loans servicing	15,900,000	13,200,000	7,200,000
Cumulative effect adjustment to accumulated earnings					$ 3,300,000
Reserve for claims insurance programs	113,000,000	93,700,000
Reserve for claims insurance programs, current	2,700,000	2,800,000
Servicing fees [Member]
Summary Of Significant Accounting Policies [Line Items]
Servicing fees from loans serviced for others	167,500,000	144,200,000	115,300,000
Operating, administrative and other expenses [Member]
Summary Of Significant Accounting Policies [Line Items]
Business promotion and advertising costs	$ 74,800,000	$ 63,100,000	$ 65,800,000
Wholly Owned Property [Member]
Summary Of Significant Accounting Policies [Line Items]
Ownership interest in property	100.00%
Commercial Real Estate [Member]
Summary Of Significant Accounting Policies [Line Items]
Ownership interest in property	0.00%
5.00% Senior Notes [Member]
Summary Of Significant Accounting Policies [Line Items]
Aggregate outstanding principal amount	$ 800,000,000					$ 800,000,000
Debt Instrument Interest Rate Stated Percentage	5.00%	5.00%
Senior notes, redemption premium	$ 20,000,000
Write-off of financing costs on extinguished debt	$ 8,000,000
5.00% Senior Notes [Member] | Tranche A term loan facility [Member]
Summary Of Significant Accounting Policies [Line Items]
Aggregate outstanding principal amount						$ 550,000,000
2015 Credit Agreement [Member]
Summary Of Significant Accounting Policies [Line Items]
Financing costs, incurred		$ 8,000,000		$ 5,400,000
2015 Credit Agreement [Member] | Tranche A term loan facility [Member]
Summary Of Significant Accounting Policies [Line Items]
Amounts available to borrow under Credit Agreement		750,000,000
2015 Credit Agreement [Member] | Revolving credit facility [Member]
Summary Of Significant Accounting Policies [Line Items]
Amounts available to borrow under Credit Agreement		$ 2,800,000,000
Internal computer software [Member]
Summary Of Significant Accounting Policies [Line Items]
Capitalized and amortized period	3 years
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives	10 years
Maximum [Member] | Enterprise software development platforms [Member]
Summary Of Significant Accounting Policies [Line Items]
Capitalized and amortized period	7 years
Maximum [Member] | Goodwill and Other intangible assets [Member]
Summary Of Significant Accounting Policies [Line Items]
Finite-lived intangible assets, maximum useful life	20 years
Minimum [Member] | Enterprise software development platforms [Member]
Summary Of Significant Accounting Policies [Line Items]
Capitalized and amortized period	3 years

Significant Accounting Polici_5

Significant Accounting Policies - Schedule of Loan Servicing Rights Recognized (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Servicing Asset At Fair Value Amount Roll Forward
Beginning balance, mortgage servicing rights	$ 373,131	$ 320,524
Mortgage servicing rights recognized	173,737	145,103
Mortgage servicing rights sold		(71)
Amortization expense	(115,743)	(98,559)
Other	(6,655)	6,134
Ending balance, mortgage servicing rights	$ 424,470	$ 373,131

Significant Accounting Polici_6

Significant Accounting Policies - Schedule of Assumptions Used in Measuring Fair Value of Servicing Assets (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value [Abstract]
Discount rate	10.00%	10.06%	10.16%
Conditional prepayment rate	8.89%	8.88%	9.66%

New Accounting Pronouncements -

New Accounting Pronouncements - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2019	Jan. 01, 2018	Jan. 01, 2016
New Accounting Pronouncement Early Adoption [Line Items]
Accumulated earnings	$ 4,504,684,000	$ 3,443,007,000
Cumulative adjustment to accumulated earnings	20,658,939,000	18,048,487,000	$ 16,830,004,000
Distributions from equity method investments reclassified from cash flows from investing activities to cash flows from operating activities	336,925,000	$ 211,855,000	195,702,000
5.00% Senior Notes [Member]
New Accounting Pronouncement Early Adoption [Line Items]
Deb instrument, redemption premium	$ 20,000,000
Debt Instrument Interest Rate Stated Percentage	5.00%	5.00%
Accounting Standards Update 2016-01
New Accounting Pronouncement Early Adoption [Line Items]
Cumulative adjustment to accumulated earnings					$ 4,000,000
Accounting Standards Update 2016-15
New Accounting Pronouncement Early Adoption [Line Items]
Distributions from equity method investments reclassified from cash flows from investing activities to cash flows from operating activities		$ 183,900,000	166,700,000
Cash paid for acquisitions reclassified from cash used in investing activities to cash used in financing activities		24,000,000	21,000,000
Accounting Standards Update 2016-15 | 5.00% Senior Notes [Member]
New Accounting Pronouncement Early Adoption [Line Items]
Deb instrument, redemption premium	$ 20,000,000
Debt Instrument Interest Rate Stated Percentage	5.00%
Accounting Standards Update 2016-02 | Subsequent Event [Member] | Minimum [Member]
New Accounting Pronouncement Early Adoption [Line Items]
Lease liability				$ 1,200,000,000
Accounting Standards Update 2016-02 | Subsequent Event [Member] | Maximum [Member]
New Accounting Pronouncement Early Adoption [Line Items]
Lease liability				$ 1,400,000,000
Adoption of new revenue recognition guidance [Member] | ASU 2014-09 [Member]
New Accounting Pronouncement Early Adoption [Line Items]
Accumulated earnings		94,622,000				$ 87,900,000
Cumulative adjustment to accumulated earnings		$ 5,600,000	$ 1,100,000

New Accounting Pronouncements_2

New Accounting Pronouncements - Schedule of Adoption of New Revenue Recognition Guidance on Financial Statement - Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2016
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Receivables	$ 3,668,591	$ 3,112,289
Contract assets	307,020	273,053
Total current assets	6,754,210	5,630,584
Other assets, net	619,397	479,474
Total assets	13,456,793	11,718,396
Accounts payable and accrued expenses	1,919,827	1,573,672
Accrued bonus and profit sharing	1,189,395	1,078,345
Compensation and employee benefits payable	1,121,179	904,434
Contract liabilities	82,227	100,615
Total current liabilities	5,803,380	4,712,944
Deferred tax liabilities, net	107,425	147,218
Total liabilities	8,446,891	7,543,782
Accumulated earnings	4,504,684	3,443,007
Accumulated other comprehensive loss	(718,269)	(552,414)
Total CBRE Group, Inc. stockholders' equity	4,938,797	4,114,496
Total liabilities and equity	$ 13,456,793	11,718,396
As Reported [Member] | ASU 2014-09 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Receivables		3,207,285
Total current assets		5,452,527
Other assets, net		422,965
Total assets		11,483,830
Accounts payable and accrued expenses		1,674,287
Accrued bonus and profit sharing		1,072,976
Compensation and employee benefits payable		803,504
Total current liabilities		4,606,645
Deferred tax liabilities, net		114,017
Total liabilities		7,404,282
Accumulated earnings		3,348,385
Accumulated other comprehensive loss		(552,858)
Total CBRE Group, Inc. stockholders' equity		4,019,430
Total liabilities and equity		11,483,830
Adoption of New Revenue Recognition Guidance [Member] | ASU 2014-09 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Receivables		(94,996)
Contract assets		273,053
Total current assets		178,057
Other assets, net		56,509
Total assets		234,566
Accounts payable and accrued expenses		(100,615)
Accrued bonus and profit sharing		5,369
Compensation and employee benefits payable		100,930
Contract liabilities		100,615
Total current liabilities		106,299
Deferred tax liabilities, net		33,201
Total liabilities		139,500
Accumulated earnings		94,622	$ 87,900
Accumulated other comprehensive loss		444
Total CBRE Group, Inc. stockholders' equity		95,066
Total liabilities and equity		$ 234,566

New Accounting Pronouncements_3

New Accounting Pronouncements - Schedule of Adoption of New Revenue Recognition Guidance on Financial Statement - Consolidated Statements of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Revenue	$ 21,340,088	$ 18,628,787	$ 17,369,108
Cost of services	16,449,212	14,305,099	13,420,911
Operating, administrative and other	3,365,773	2,858,720	2,780,301
Operating income	1,087,989	1,078,682	816,831
Income before provision for income taxes	1,379,006	1,171,333	882,070
Provision for income taxes	313,058	467,757	296,900
Net income	1,065,948	703,576	585,170
Net income attributable to CBRE Group, Inc.	$ 1,063,219	$ 697,109	$ 573,079
Basic income per share attributable to CBRE Group, Inc. shareholders	$ 3.13	$ 2.06	$ 1.71
Diluted income per share attributable to CBRE Group, Inc. shareholders	$ 3.10	$ 2.05	$ 1.69
As Reported [Member] | ASU 2014-09 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Revenue		$ 14,209,608	$ 13,071,589
Cost of services		9,893,226	9,123,727
Operating, administrative and other		2,858,654	2,781,310
Operating income		1,071,442	815,487
Income before provision for income taxes		1,164,093	880,726
Provision for income taxes		466,147	296,662
Net income		697,946	584,064
Net income attributable to CBRE Group, Inc.		$ 691,479	$ 571,973
Basic income per share attributable to CBRE Group, Inc. shareholders		$ 2.05	$ 1.71
Diluted income per share attributable to CBRE Group, Inc. shareholders		$ 2.03	$ 1.69
Adoption of New Revenue Recognition Guidance [Member] | ASU 2014-09 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Revenue		$ 4,419,179	$ 4,297,519
Cost of services		4,411,873	4,297,184
Operating, administrative and other		66	(1,009)
Operating income		7,240	1,344
Income before provision for income taxes		7,240	1,344
Provision for income taxes		1,610	238
Net income		5,630	1,106
Net income attributable to CBRE Group, Inc.		$ 5,630	$ 1,106
Basic income per share attributable to CBRE Group, Inc. shareholders		$ 0.01
Diluted income per share attributable to CBRE Group, Inc. shareholders		$ 0.02

FacilitySource Acquisition - Ad

FacilitySource Acquisition - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 12, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Revenue		$ 21,340,088	$ 18,628,787	$ 17,369,108
Operating loss		1,087,989	1,078,682	816,831
Net income attributable to CBRE Group, Inc.		1,063,219	697,109	573,079
Direct transaction and integration costs		$ 9,124	$ 27,351	$ 125,743
FacilitySource [Member]
Business Acquisition [Line Items]
Date of business purchase agreement		Jun. 12, 2018
Estimated purchase price	$ 266,465
Purchase price payable in cash	$ 263,000
Revenue		$ 121,600
Operating loss		(3,900)
Net income attributable to CBRE Group, Inc.		(2,900)
Direct transaction and integration costs		6,700
Depreciation and amortization expense		4,000
Removal of direct costs		6,700
Removal of tax impact		$ 6,700
Blocker Corp [Member]
Business Acquisition [Line Items]
Blocker Units purchase from Stockholders	1,686,013

FacilitySource Acquisition - Su

FacilitySource Acquisition - Summary of Excess Purchase Price Over Estimated Fair Value of Net Assets Acquired (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 12, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Excess purchase price over estimated fair value of net assets acquired	$ 3,652,309		$ 3,254,740	$ 2,981,392
FacilitySource [Member]
Business Acquisition [Line Items]
Estimated purchase price		$ 266,465
Add: Estimated fair value of net liabilities assumed (see table below)		8,632
Excess purchase price over estimated fair value of net assets acquired		$ 275,097

FacilitySource Acquisition - _2

FacilitySource Acquisition - Summary of Aggregate Estimated Fair Value of Assets Acquired and Liabilities Assumed (Detail) - FacilitySource [Member] $ in Thousands	Jun. 12, 2018USD ($)
Assets Acquired:
Cash and cash equivalents	$ 2,627
Receivables, net	37,902
Prepaid expenses	477
Property and equipment	41,680
Other intangible assets	48,200
Other assets	114
Total assets acquired	131,000
Liabilities Assumed:
Accounts payable and accrued expenses	48,273
Accrued bonus and profit sharing	5,036
Compensation and employee benefits payable	1,472
Line of credit and term loan	26,295
Deferred tax liabilities, net	57,428
Other liabilities	1,128
Total liabilities assumed	139,632
Estimated Fair Value of Net Liabilities Assumed	$ (8,632)

FacilitySource Acquisition - _3

FacilitySource Acquisition - Summary of Preliminary Estimate of Amortizable Intangible Assets and Depreciable Computer Software Acquired (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Jun. 12, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Other intangible assets, accumulated amortization	$ 1,180,393		$ 1,000,738
Accumulated Amortization and Depreciation, Property and Equipment	908,027		758,691
Property and equipment, net	721,692		617,739
Customer relationships [Member]
Business Acquisition [Line Items]
Other intangible assets, accumulated amortization	$ 435,225		$ 355,642
FacilitySource [Member]
Business Acquisition [Line Items]
Weighted Average Amortization Period, Intangibles	16 years 11 months 15 days
Amount Assigned at Acquisition Date, Total amortizable intangible assets acquired		$ 48,200
Amount Assigned at Acquisition Date, Property and Equipment		41,680
Other intangible assets, accumulated amortization	$ 1,901
Total amortizable intangible assets acquired, Net Carrying Value	$ 46,299
FacilitySource [Member] | Trade name [Member]
Business Acquisition [Line Items]
Weighted Average Amortization Period, Intangibles	20 years
Amount Assigned at Acquisition Date, Total amortizable intangible assets acquired		37,200
Other intangible assets, accumulated amortization	$ 1,007
Total amortizable intangible assets acquired, Net Carrying Value	$ 36,193
FacilitySource [Member] | Customer relationships [Member]
Business Acquisition [Line Items]
Weighted Average Amortization Period, Intangibles	6 years 8 months 1 day
Amount Assigned at Acquisition Date, Total amortizable intangible assets acquired		11,000
Other intangible assets, accumulated amortization	$ 894
Total amortizable intangible assets acquired, Net Carrying Value	$ 10,106
FacilitySource [Member] | Computer software [Member]
Business Acquisition [Line Items]
Weighted Average Depreciation Period, Property and Equipment	10 years
Amount Assigned at Acquisition Date, Property and Equipment		$ 38,800
Accumulated Amortization and Depreciation, Property and Equipment	$ 2,102
Property and equipment, net	$ 36,698

FacilitySource Acquisition - Ce

FacilitySource Acquisition - Certain Adjustments to Unaudited Pro Forma Results (Detail) - FacilitySource [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Depreciation expense	$ 1,253	$ 3,054	$ 3,298
Amortization expense	1,019	2,190	2,190
Interest expense	$ 2,748	$ 6,098	$ 6,098

FacilitySource Acquisition - _4

FacilitySource Acquisition - Summary of Pro Forma Results Prepared for Comparative Purposes (Detail) - FacilitySource [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Revenue	$ 21,437,014	$ 18,778,312	$ 17,472,602
Operating income	1,089,738	1,058,834	794,495
Net income attributable to CBRE Group, Inc.	$ 1,061,916	$ 680,392	$ 555,332
Basic income per share:
Net income per share attributable to CBRE Group, Inc.	$ 3.13	$ 2.02	$ 1.66
Weighted average shares outstanding for basic income per share	339,321,056	337,658,017	335,414,831
Diluted income per share:
Net income per share attributable to CBRE Group, Inc.	$ 3.09	$ 2	$ 1.64
Weighted average shares outstanding for diluted income per share	343,122,741	340,783,556	338,424,563

Warehouse Receivables & Wareh_3

Warehouse Receivables & Warehouse Lines of Credit - Schedule of Warehouse Receivables (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Warehouse Receivables And Warehouse Lines Of Credit [Abstract]
Beginning balance at December 31, 2017	$ 928,038
Origination of mortgage loans	20,591,602	$ 17,655,104	$ 15,297,471
Gains (premiums on loan sales)	56,000
Proceeds from sale of mortgage loans:
Sale of mortgage loans	(20,174,676)
Cash collections of premiums on loan sales	(56,000)
Proceeds from sale of mortgage loans	(20,230,676)	(18,052,756)	$ (15,833,633)
Net decrease in mortgage servicing rights included in warehouse receivables	(2,496)
Ending balance at December 31, 2018	$ 1,342,468	$ 928,038

Warehouse Receivables & Wareh_4

Warehouse Receivables & Warehouse Lines of Credit - Summary of Warehouse Lines of Credit in Place (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Feb. 01, 2018	Jan. 27, 2018	Jan. 09, 2018	Dec. 31, 2016
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Carrying Value	$ 1,328,761,000	$ 910,766,000
Warehouse Agreement Borrowings [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Maximum Facility Size	2,600,000,000	3,000,000,000
Carrying Value	1,328,761,000	910,766,000
Warehouse Agreement Borrowings [Member] | Pricing at daily one-month LIBOR plus 1.30%, maturing October 21, 2019 [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Carrying Value	$ 1,328,761,000	910,766,000
Warehouse Agreement Borrowings [Member] | JP Morgan [Member] | Pricing at daily one-month LIBOR plus 1.30%, maturing October 21, 2019 [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Current Maturity	Oct. 21, 2019
Maximum Facility Size	$ 985,000,000	1,000,000,000
Carrying Value	$ 871,680,000	$ 192,180,000
Line of credit over LIBOR rate	1.30%	1.30%
Warehouse Agreement Borrowings [Member] | JP Morgan [Member] | Pricing at daily one-month LIBOR plus 2.75%, maturing October 21, 2019 [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Current Maturity	Oct. 21, 2019
Maximum Facility Size	$ 15,000,000	$ 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	$ 149,089,000	$ 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	$ 400,000,000			$ 400,000,000
Carrying Value	$ 165,945,000	$ 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. 4, 2019
Maximum Facility Size	$ 425,000,000	$ 337,500,000		$ 225,000,000		225,000,000
Carrying Value	$ 21,852,000	$ 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	$ 325,000,000	$ 387,500,000			$ 200,000,000	$ 200,000,000
Carrying Value	$ 120,195,000	$ 151,100,000
Line of credit over LIBOR rate	1.35%	1.35%

Warehouse Receivables & Wareh_5

Warehouse Receivables & Warehouse Lines of Credit - Summary of Warehouse Lines of Credit in Place (Parenthetical) (Detail) - Warehouse Agreement Borrowings [Member] - USD ($)	12 Months Ended
	Dec. 31, 2018	Feb. 01, 2018	Jan. 27, 2018	Jan. 09, 2018	Dec. 31, 2017	Dec. 31, 2016
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Maximum Facility Size	$ 2,600,000,000				$ 3,000,000,000
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]
Maximum Facility Size	400,000,000	$ 400,000,000			800,000,000	$ 400,000,000
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]
Maximum Facility Size	425,000,000		$ 225,000,000		337,500,000	225,000,000
Additional line of credit borrowing capacity added during period	200,000,000
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]
Maximum Facility Size	$ 325,000,000			$ 200,000,000	$ 387,500,000	$ 200,000,000

Warehouse Receivables & Wareh_6

Warehouse Receivables & Warehouse Lines of Credit - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2018USD ($)
Warehouse Agreement Borrowings [Member]
Warehouse Receivables And Warehouse Lines Of Credit [Line Items]
Lines of credit principal outstanding	$ 2,800,000,000

Variable Interest Entities (V_3

Variable Interest Entities (VIEs) - Schedule of Maximum Exposure to Loss (Detail) - Non-Consolidated Variable Interest Entities [Member] - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Investments in unconsolidated subsidiaries	$ 23,266	$ 26,273
Other current assets	3,827	3,401
Co-investment commitments	22,363	2,364
Maximum exposure to loss	$ 49,456	$ 32,038

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 12, 2014	Sep. 26, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value measurements assets, significant transfers from level 1 to level 2	$ 0	$ 0
Fair value measurements assets, significant transfers from level 2 to level 1	0	0
Fair value measurements liabilities, significant transfers from level 1 to level 2	0	0
Fair value measurements liabilities, significant transfers from level 2 to level 1	0	0
Gain associated with remeasuring of investment in a previously unconsolidated subsidiary to fair value as of date	$ 100,420,000
Percentage of remeasuring investment in previously unconsolidated subsidiary	50.00%
Remaining controlling interest acquired percentage	50.00%
Fair value of investment in unconsolidated subsidiary at acquisition date	$ 110,100,000
Senior notes		791,700,000
Notes payable on real estate	6,300,000	17,900,000
4.875% Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of senior loans	$ 616,400,000	$ 645,700,000
Interest rate of long-term debt	4.875%	4.875%
Senior notes	$ 592,800,000	$ 592,000,000
5.25% Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of senior loans	$ 443,700,000	$ 468,000,000
Interest rate of long-term debt	5.25%	5.25%		5.25%	5.25%
Senior notes	$ 422,700,000	$ 422,400,000
5.00% Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of senior loans		$ 823,800,000
Interest rate of long-term debt	5.00%	5.00%
Senior notes		$ 791,700,000
Redemption details	In March 2018, we redeemed our 5.00% senior notes in full
Senior term loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of senior loans	$ 757,000,000	199,900,000
Senior term loans	751,300,000	193,500,000
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value disclosure, nonrecurring		0	$ 0
Liabilities, fair value disclosure, nonrecurring		$ 0	$ 0
Previously Unconsolidated Subsidiary [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Gain associated with remeasuring of investment in a previously unconsolidated subsidiary to fair value as of date	$ 100,400,000

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warehouse receivables	$ 1,342,468	$ 928,038
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	48,776	34,687
Equity securities	153,762	133,595
Warehouse receivables	1,342,468	928,038
Total assets at fair value	1,545,006	1,096,320
Interest rate swaps	1,070	4,766
Securities sold, not yet purchased	3,133	3,431
Total liabilities at fair value	4,203	8,252
Foreign currency exchange forward contracts		55
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	3,138	3,820
Equity securities	153,762	133,595
Total assets at fair value	156,900	137,415
Securities sold, not yet purchased	3,133	3,431
Total liabilities at fair value	3,133	3,431
Recurring [Member] | Significant Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	45,638	30,867
Warehouse receivables	1,342,468	928,038
Total assets at fair value	1,388,106	958,905
Interest rate swaps	1,070	4,766
Total liabilities at fair value	1,070	4,821
Foreign currency exchange forward contracts		55
Recurring [Member] | U.S. treasury securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	3,138	3,820
Recurring [Member] | U.S. treasury securities [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	3,138	3,820
Recurring [Member] | Debt securities issued by U.S. federal agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	11,196	4,901
Recurring [Member] | Debt securities issued by U.S. federal agencies [Member] | Significant Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	11,196	4,901
Recurring [Member] | Corporate debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	27,201	20,023
Recurring [Member] | Corporate debt securities [Member] | Significant Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	27,201	20,023
Recurring [Member] | Asset-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	5,017	3,577
Recurring [Member] | Asset-backed securities [Member] | Significant Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	5,017	3,577
Recurring [Member] | Collateralized mortgage obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	2,224	2,366
Recurring [Member] | Collateralized mortgage obligations [Member] | Significant Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	$ 2,224	$ 2,366

Property and Equipment - Summar

Property and Equipment - Summary of Property and Equipment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,629,719	$ 1,376,430
Accumulated depreciation and amortization	(908,027)	(758,691)
Property and equipment, net	721,692	617,739
Computer hardware and software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	838,301	670,059
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	472,952	415,947
Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	307,812	279,621
Equipment under capital leases [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 10,654	$ 10,803
Minimum [Member] | Computer hardware and software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life, years	3 years
Minimum [Member] | Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life, years	1 year
Minimum [Member] | Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life, years	1 year
Minimum [Member] | Equipment under capital leases [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life, years	3 years
Maximum [Member] | Computer hardware and software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life, years	10 years
Maximum [Member] | Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life, years	15 years
Maximum [Member] | Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life, years	10 years
Maximum [Member] | Equipment under capital leases [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life, years	5 years

Property and Equipment - Additi

Property and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 451,988	$ 406,114	$ 366,927
Property and equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 192,800	$ 166,000	$ 151,200

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Schedule of Changes in Goodwill by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Goodwill Gross, Beginning	$ 4,323,246	$ 4,049,898
Accumulated impairment losses	(1,068,506)	(1,068,506)
Goodwill, Net of impairment losses	3,254,740	2,981,392
Purchase accounting entries related to acquisitions	471,204	143,822
Foreign exchange movement	(73,635)	129,526
Goodwill Gross, Ending	4,720,815	4,323,246
Accumulated impairment losses	(1,068,506)	(1,068,506)
Goodwill, Net of impairment losses	3,652,309	3,254,740
Americas [Member]
Goodwill [Line Items]
Goodwill Gross, Beginning	2,408,576	2,302,929
Accumulated impairment losses	(798,290)	(798,290)
Goodwill, Net of impairment losses	1,610,286	1,504,639
Purchase accounting entries related to acquisitions	450,380	104,654
Foreign exchange movement	(1,623)	993
Goodwill Gross, Ending	2,857,333	2,408,576
Accumulated impairment losses	(798,290)	(798,290)
Goodwill, Net of impairment losses	2,059,043	1,610,286
EMEA [Member]
Goodwill [Line Items]
Goodwill Gross, Beginning	1,156,458	1,047,295
Accumulated impairment losses	(138,631)	(138,631)
Goodwill, Net of impairment losses	1,017,827	908,664
Purchase accounting entries related to acquisitions	17,838	17,402
Foreign exchange movement	(51,753)	91,761
Goodwill Gross, Ending	1,122,543	1,156,458
Accumulated impairment losses	(138,631)	(138,631)
Goodwill, Net of impairment losses	983,912	1,017,827
Asia Pacific [Member]
Goodwill [Line Items]
Goodwill Gross, Beginning	166,108	150,706
Goodwill, Net of impairment losses	166,108	150,706
Purchase accounting entries related to acquisitions	8,096	4,198
Foreign exchange movement	(8,556)	11,204
Goodwill Gross, Ending	165,648	166,108
Goodwill, Net of impairment losses	165,648	166,108
Global Investment Management [Member]
Goodwill [Line Items]
Goodwill Gross, Beginning	505,441	462,305
Accumulated impairment losses	(44,922)	(44,922)
Goodwill, Net of impairment losses	460,519	417,383
Purchase accounting entries related to acquisitions	(5,110)	17,568
Foreign exchange movement	(11,703)	25,568
Goodwill Gross, Ending	488,628	505,441
Accumulated impairment losses	(44,922)	(44,922)
Goodwill, Net of impairment losses	443,706	460,519
Development Services [Member]
Goodwill [Line Items]
Goodwill Gross, Beginning	86,663	86,663
Accumulated impairment losses	(86,663)	(86,663)
Goodwill Gross, Ending	86,663	86,663
Accumulated impairment losses	$ (86,663)	$ (86,663)

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)BusinessSoftware	Dec. 31, 2016USD ($)
Finite Lived Intangible Assets [Line Items]
Equity interest acquired	50.00%
Number of acquisitions completed during the period | Business		11
Number of software service acquired | Software		2
Goodwill impairment	$ 0	$ 0	$ 0
Other intangible assets, net	1,441,308,000	1,399,112,000
Other intangible assets, accumulated amortization	1,180,393,000	1,000,738,000
Intangible assets	2,462,066,000	2,236,297,000
Amortization expense	258,700,000	238,700,000	$ 211,700,000
Estimated annual amortization expense, 2019	208,200,000
Estimated annual amortization expense, 2020	182,200,000
Estimated annual amortization expense, 2021	151,400,000
Estimated annual amortization expense, 2022	134,100,000
Estimated annual amortization expense, 2023	119,900,000
Customer relationships [Member]
Finite Lived Intangible Assets [Line Items]
Other intangible assets, accumulated amortization	$ 435,225,000	355,642,000
Intangible assets, amortization period	20 years
Intangible assets	$ 843,387,000	802,597,000
Mortgage servicing rights [Member]
Finite Lived Intangible Assets [Line Items]
Other intangible assets, accumulated amortization	$ 272,852,000	235,626,000
Intangible assets, amortization period	10 years
Intangible assets	$ 697,322,000	608,757,000
Management contracts [Member]
Finite Lived Intangible Assets [Line Items]
Other intangible assets, accumulated amortization	$ 135,835,000	122,450,000
Intangible assets, amortization period	13 years
Intangible assets	$ 200,251,000	203,291,000
Non-compete agreements [Member]
Finite Lived Intangible Assets [Line Items]
Other intangible assets, accumulated amortization	73,750,000	57,358,000
Intangible assets	$ 73,750,000	$ 73,750,000
New England Joint Venture [Member]
Finite Lived Intangible Assets [Line Items]
Equity interest acquired	50.00%
Interactive Visualization Technologies [Member]
Finite Lived Intangible Assets [Line Items]
Number of software service acquired | Software		1
Technology Solutions [Member]
Finite Lived Intangible Assets [Line Items]
Number of software service acquired | Software		1
Global Workplace Solutions (GWS) [Member] | Trademarks [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, amortization period	20 years
Intangible assets	$ 280,000,000
Global Workplace Solutions (GWS) [Member] | Non-compete agreements [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, amortization period	3 years
Intangible assets	$ 74,000,000

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Unamortizable intangible assets	$ 159,635	$ 163,553
Gross Carrying Amount, Amortizable intangible assets	2,462,066	2,236,297
Gross Carrying Amount, Total intangible assets	2,621,701	2,399,850
Accumulated Amortization, Amortizable intangible assets	(1,180,393)	(1,000,738)
Management contracts [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Unamortizable intangible assets	86,585	90,503
Trademarks [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Unamortizable intangible assets	56,800	56,800
Trade name [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Unamortizable intangible assets	16,250	16,250
Customer relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Amortizable intangible assets	843,387	802,597
Accumulated Amortization, Amortizable intangible assets	(435,225)	(355,642)
Mortgage servicing rights [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Amortizable intangible assets	697,322	608,757
Accumulated Amortization, Amortizable intangible assets	(272,852)	(235,626)
Trademarks and Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Amortizable intangible assets	312,699	321,406
Accumulated Amortization, Amortizable intangible assets	(76,514)	(64,866)
Management contracts [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Amortizable intangible assets	200,251	203,291
Accumulated Amortization, Amortizable intangible assets	(135,835)	(122,450)
Non-compete agreements [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Amortizable intangible assets	73,750	73,750
Accumulated Amortization, Amortizable intangible assets	(73,750)	(57,358)
Other amortizable intangible assets [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Amortizable intangible assets	334,657	226,496
Accumulated Amortization, Amortizable intangible assets	$ (186,217)	$ (164,796)

Investments In Unconsolidated_3

Investments In Unconsolidated Subsidiaries - Additional information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Investment management, property management, brokerage and other professional services [Member] | Global Investment Management [Member]
Schedule Of Equity Method Investments [Line Items]
Revenues from unconsolidated subsidiaries	$ 134.3	$ 100.3	$ 86.8
Maximum [Member] | Global Investment Management [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investments in unconsolidated subsidiaries, variations in ownership percentage	5.00%
Maximum [Member] | Development Services [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investments in unconsolidated subsidiaries, variations in ownership percentage	30.00%
Maximum [Member] | Other [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investments in unconsolidated subsidiaries, variations in ownership percentage	50.00%

Investments in Unconsolidated_4

Investments in Unconsolidated Subsidiaries - Schedule of Condensed Financial Information of Equity Method Investments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule Of Equity Method Investments [Line Items]
Current assets	$ 3,931,111	$ 4,385,869
Non-current assets	16,578,905	15,548,581
Assets	20,510,016	19,934,450
Current liabilities	1,919,955	2,032,227
Non-current liabilities	4,495,117	4,466,814
Liabilities	6,415,072	6,499,041
Non-controlling interests	261,654	83,579
Revenue	1,524,685	1,392,590	$ 1,426,202
Operating income	906,889	1,425,824	527,871
Net income	679,712	1,254,345	418,751
Global Investment Management [Member]
Schedule Of Equity Method Investments [Line Items]
Current assets	824,884	1,304,249
Non-current assets	16,296,613	15,369,496
Assets	17,121,497	16,673,745
Current liabilities	409,014	526,777
Non-current liabilities	4,423,313	4,354,825
Liabilities	4,832,327	4,881,602
Non-controlling interests	261,654	83,579
Revenue	1,199,641	1,108,125	1,184,573
Operating income	641,150	972,493	209,230
Net income	463,560	833,189	122,560
Development Services [Member]
Schedule Of Equity Method Investments [Line Items]
Current assets	3,058,166	2,995,449
Non-current assets	99,728	102,508
Assets	3,157,894	3,097,957
Current liabilities	1,478,461	1,451,239
Non-current liabilities	67,913	110,649
Liabilities	1,546,374	1,561,888
Revenue	124,175	104,816	85,594
Operating income	254,191	427,407	292,141
Net income	204,619	395,697	269,841
Other [Member]
Schedule Of Equity Method Investments [Line Items]
Current assets	48,061	86,171
Non-current assets	182,564	76,577
Assets	230,625	162,748
Current liabilities	32,480	54,211
Non-current liabilities	3,891	1,340
Liabilities	36,371	55,551
Revenue	200,869	179,649	156,035
Operating income	11,548	25,924	26,500
Net income	$ 11,533	$ 25,459	$ 26,350

Long-Term Debt and Short-Term_3

Long-Term Debt and Short-Term Borrowings - Schedule of Long-Term Debt and Short-Term Borrowings (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total long-term debt	$ 1,784,921	$ 2,022,598
Less: current maturities of long-term debt	(3,146)	(8)
Less: unamortized debt issuance costs	(14,515)	(22,987)
Total long-term debt, net of current maturities	1,767,260	1,999,603
Warehouse lines of credit (which fund loans that U.S. Government Sponsored Enterprises have committed to purchase)	1,328,761	910,766
Other		16
Total short-term borrowings	1,328,761	910,782
Warehouse Agreement Borrowings [Member]
Debt Instrument [Line Items]
Warehouse lines of credit (which fund loans that U.S. Government Sponsored Enterprises have committed to purchase)	1,328,761	910,766
Senior secured term loans [Member]
Debt Instrument [Line Items]
Total long-term debt	758,452	200,000
Other Long Term Debt [Member]
Debt Instrument [Line Items]
Total long-term debt	3,682	8
4.875% Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Total long-term debt	596,653	596,273
5.25% Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Total long-term debt	426,134	426,317
5.00% Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Total long-term debt		800,000
Pricing at daily one-month LIBOR plus 1.30%, maturing October 21, 2019 [Member] | Warehouse Agreement Borrowings [Member]
Debt Instrument [Line Items]
Warehouse lines of credit (which fund loans that U.S. Government Sponsored Enterprises have committed to purchase)	$ 1,328,761	$ 910,766

Long-Term Debt and Short-Term_4

Long-Term Debt and Short-Term Borrowings - Schedule of Long-Term Debt and Short-Term Borrowings (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Aug. 13, 2015	Dec. 12, 2014	Sep. 26, 2014
Senior secured term loans [Member]
Debt Instrument [Line Items]
Maturity date of debt, end	Dec. 31, 2023	Dec. 31, 2023
Senior secured term loans [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt	0.75%	0.75%
Senior secured term loans [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt	3.38%	3.38%
5.25% Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt	5.25%	5.25%		5.25%	5.25%
5.25% Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt	4.875%	4.875%
Due date of debt instrument	2,026	2,026
4.875% Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt	4.875%	4.875%
4.875% Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt	5.25%	5.25%	4.875%
Due date of debt instrument	2,025	2,025
5.00% Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt	5.00%	5.00%
5.00% Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt	5.00%	5.00%
Due month year of debt instrument	2018-03	2018-03
Interest Ranging from 2.82% to 5.25% [Member] | Warehouse Agreement Borrowings [Member]
Debt Instrument [Line Items]
Due date of debt instrument	2,019	2,019
Interest Ranging from 2.82% to 5.25% [Member] | Warehouse Agreement Borrowings [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt	2.82%	2.82%
Interest Ranging from 2.82% to 5.25% [Member] | Warehouse Agreement Borrowings [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt	5.25%	5.25%

Long-Term Debt and Short-Term_5

Long-Term Debt and Short-Term Borrowings - Additional Information (Detail) $ in Thousands	Dec. 31, 2018USD ($)
Debt Disclosure [Abstract]
Future annual aggregate maturities, 2019	$ 1,331,907
Future annual aggregate maturities, 2020	536
Future annual aggregate maturities, 2021	0
Future annual aggregate maturities, 2022	300,000
Future annual aggregate maturities, 2023	458,452
Future annual aggregate maturities, thereafter	$ 1,025,000

Long-Term Debt and Short-Term_6

Long-Term Debt and Short-Term Borrowings - Long-Term Debt - Additional Information (Detail) € in Millions	Oct. 31, 2017USD ($)	Mar. 21, 2016USD ($)	Aug. 13, 2015USD ($)	Dec. 12, 2014USD ($)	Sep. 26, 2014USD ($)	Mar. 14, 2013USD ($)	Mar. 31, 2011USD ($)Swap	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2018EUR (€)	Dec. 20, 2018EUR (€)
Debt Instrument [Line Items]
Borrowings from line of credit								$ 3,258,000,000	$ 1,521,000,000	$ 2,909,000,000
Term loan facility due and payable								1,784,921,000	2,022,598,000
Senior long term loans									791,700,000
Number of interest rate swap agreements entered | Swap							5
Derivative notional amount							$ 400,000,000
Ineffectiveness of significant hedge								0	0	0
Interest expense								107,270,000	136,814,000	144,851,000
Unrealized (losses) gains on interest rate swaps, net of tax								708,000	585,000	(1,431,000)
Write-off of financing costs on extinguished debt								$ 27,982,000
Minimum coverage ratio of EBITDA to total interest expense expressed in percentage								2.00%
Maximum leverage ratio of total debt less available cash to EBITDA expressed in percentage								4.25%
Maximum leverage ratio during first four quarter that qualified acquisition is consummated								4.75%
Coverage ratio of EBITDA to total interest expense expressed in percentage								20.61%			20.61%
Leverage ratio of total debt less available cash to EBITDA expressed in percentage								61.00%			61.00%
Interest rate swaps [Member]
Debt Instrument [Line Items]
Unrealized (losses) gains on interest rate swaps, net of tax								$ 1,000,000	900,000	(2,400,000)
Interest rate swaps								1,100,000	4,800,000
Reclassification out of accumulated other comprehensive income [Member]
Debt Instrument [Line Items]
Amount to be reclassified to interest expense								1,100,000
Reclassification out of accumulated other comprehensive income [Member] | Accumulated net gain (loss) from designated or qualifying cash flow hedges [Member]
Debt Instrument [Line Items]
Interest expense								2,700,000	$ 7,400,000	$ 10,700,000
2017 Credit Agreement [Member]
Debt Instrument [Line Items]
Amounts available to borrow under Credit Agreement								$ 2,800,000,000
Revolving credit facility maturity date								Oct. 31, 2022
2017 Credit Agreement [Member] | Minimum [Member]
Debt Instrument [Line Items]
Credit Agreement applicable fixed rate spread								0.875%
Credit Agreement applicable daily rate spread								0.00%
Interest rate plus EURIBOR								0.75%
2017 Credit Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
Credit Agreement applicable fixed rate spread								1.25%
Credit Agreement applicable daily rate spread								0.25%
4.875% Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued			$ 600,000,000
Interest rate of long-term debt								4.875%	4.875%		4.875%
Senior long term loans								$ 592,800,000	$ 592,000,000
4.875% Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Term loan facility due and payable								$ 596,653,000	$ 596,273,000
Debt instrument, maturity date								Mar. 1, 2026
Interest rate of long-term debt			4.875%					5.25%	5.25%		5.25%
Redemption price percentage			99.24%
Debt instrument redemption description								The 4.875% senior notes are redeemable at our option, in whole or in part, prior to December 1, 2025 at a redemption price equal to the greater of (1) 100% of the principal amount of the 4.875% senior notes to be redeemed and (2) the sum of the present values of the remaining scheduled payments of principal and interest thereon to December 1, 2025 (not including any portions of payments of interest accrued as of the date of redemption) discounted to the date of redemption on a semi-annual basis at the Adjusted Treasury Rate (as defined in the indenture governing these notes). In addition, at any time on or after December 1, 2025, the 4.875% senior notes may be redeemed by us, in whole or in part, at a redemption price equal to 100.0% of the principal amount, plus accrued and unpaid interest, if any, to (but excluding) the date of redemption. If a change of control triggering event (as defined in the indenture governing these notes) occurs, we are obligated to make an offer to purchase the then outstanding 4.875% senior notes at a redemption price of 101.0% of the principal amount, plus accrued and unpaid interest, if any, to the date of purchase.
Debt instrument, frequency of periodic payment								semi-annually
Debt instrument, date of first required payment								Mar. 1, 2016
Interest rate swap agreement expired on October 2017 [Member]
Debt Instrument [Line Items]
Derivative notional amount							$ 200,000,000
Interest rate swap, expiration date							2017-10
Interest rate swap agreement expiring on September 2019 [Member]
Debt Instrument [Line Items]
Derivative notional amount							$ 200,000,000
Interest rate swap, expiration date							2019-09
5.25% Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued					$ 300,000,000
Debt instrument, maturity date								Mar. 15, 2025
Interest rate of long-term debt				5.25%	5.25%			5.25%	5.25%		5.25%
Redemption price percentage					101.00%
Senior long term loans								$ 422,700,000	$ 422,400,000
Price equal to percentage on face value				101.50%
Aggregate principal amount issued				$ 125,000,000
5.25% Senior Notes [Member] | Redemption prior to December 15, 2024 [Member]
Debt Instrument [Line Items]
Redemption price percentage					100.00%
5.25% Senior Notes [Member] | Redemption on or after December 15, 2024 [Member]
Debt Instrument [Line Items]
Percentage of notes available for redemption					100.00%
5.25% Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Term loan facility due and payable								$ 426,134,000	$ 426,317,000
Interest rate of long-term debt								4.875%	4.875%		4.875%
5.00% Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued						$ 800,000,000		$ 800,000,000
Interest rate of long-term debt								5.00%	5.00%		5.00%
Debt instrument redemption description								In March 2018, we redeemed our 5.00% senior notes in full
Senior long term loans									$ 791,700,000
Redemption date								Mar. 15, 2018
Senior notes, redemption premium								$ 20,000,000
Write-off of financing costs on extinguished debt								$ 8,000,000
5.00% Senior Notes [Member] | Redemption on March 15, 2018 [Member]
Debt Instrument [Line Items]
Redemption charges						28,000,000
Senior notes, redemption premium						20,000,000
Write-off of financing costs on extinguished debt						$ 8,000,000
5.00% Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Term loan facility due and payable									$ 800,000,000
Interest rate of long-term debt								5.00%	5.00%		5.00%
5.00% senior notes due March 15, 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date								Mar. 15, 2023
Interest rate of long-term debt						5.00%
Debt instrument redemption description								The 5.00% senior notes were redeemable at our option, in whole or in part, on March 15, 2018 at a redemption price of 102.5% of the principal amount on that date. We redeemed these notes in full on March 15, 2018 and incurred charges of $28.0 million, including a premium of $20.0 million and the write-off of $8.0 million of unamortized deferred financing costs. We funded this redemption with $550.0 million of borrowings from our tranche A term loan facility and borrowings from our revolving credit facility under our 2017 Credit Agreement.
Debt instrument, frequency of periodic payment								semi-annually
Accrued interest percentage per year						5.00%
5.00% senior notes due March 15, 2023 [Member] | Redemption on March 15, 2018 [Member]
Debt Instrument [Line Items]
Redemption price percentage						102.50%
Revolving credit facility [Member] | 2015 Credit Agreement [Member]
Debt Instrument [Line Items]
Revolving credit facility increase in borrowing capacity		$ 200,000,000
Amounts available to borrow under Credit Agreement									$ 2,800,000,000
Revolving credit facility [Member] | 2017 Credit Agreement [Member]
Debt Instrument [Line Items]
Borrowings from line of credit	$ 83,000,000
Revolving credit facility [Member] | 2017 Credit Agreement [Member] | Minimum [Member]
Debt Instrument [Line Items]
Credit Agreement applicable fixed rate spread								0.775%
Credit Agreement applicable daily rate spread								0.00%
Revolving credit facility [Member] | 2017 Credit Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
Credit Agreement applicable fixed rate spread								1.075%
Credit Agreement applicable daily rate spread								0.075%
Term Loan Facility [Member] | 2017 Credit Agreement [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued | €												€ 400
Term loan facility due and payable | €											€ 400
Debt instrument, maturity date								Dec. 20, 2023
Senior secured term loans outstanding								$ 456,900,000
Interest rate of long-term debt								0.75%			0.75%
Tranche A term loan facility [Member] | 2015 Credit Agreement [Member]
Debt Instrument [Line Items]
Amounts available to borrow under Credit Agreement									750,000,000
Tranche A term loan facility [Member] | 2017 Credit Agreement [Member]
Debt Instrument [Line Items]
Borrowings from line of credit	$ 200,000,000
Amounts available to borrow under Credit Agreement								$ 750,000,000
Revolving credit facility maturity date								Oct. 31, 2022
Maximum leverage ratio								250.00%
Senior secured term loans outstanding								$ 294,400,000	$ 193,500,000
Interest rate of long-term debt								3.36%	2.51%		3.36%
Tranche A term loan facility [Member] | 5.00% Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued						$ 550,000,000

Long-Term Debt and Short-Term_7

Long-Term Debt and Short-Term Borrowings - Short-Term Debt - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
Short-term borrowings	$ 1,328,761	$ 910,782
Short-term debt, weighted average interest rate	3.80%	2.70%

Long-Term Debt and Short-Term_8

Long-Term Debt and Short-Term Borrowings - Revolving Credit Facility - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Letters of credit outstanding amount	$ 74,900,000
2017 Credit Agreement [Member]
Debt Instrument [Line Items]
Amounts available to borrow under Credit Agreement	$ 2,800,000,000
2017 Credit Agreement [Member] | Minimum [Member]
Debt Instrument [Line Items]
Credit Agreement applicable fixed rate spread	0.875%
Credit Agreement applicable daily rate spread	0.00%
2017 Credit Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
Credit Agreement applicable fixed rate spread	1.25%
Credit Agreement applicable daily rate spread	0.25%
2017 Credit Agreement [Member] | Revolving credit facility [Member]
Debt Instrument [Line Items]
Revolving credit facility	$ 0	$ 0
Letters of credit outstanding amount	$ 2,000,000	$ 2,000,000
2017 Credit Agreement [Member] | Revolving credit facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Credit Agreement applicable fixed rate spread	0.775%
Credit Agreement applicable daily rate spread	0.00%
2017 Credit Agreement [Member] | Revolving credit facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Credit Agreement applicable fixed rate spread	1.075%
Credit Agreement applicable daily rate spread	0.075%
2017 Credit Agreement [Member] | Canadian, Australian and New Zealand subsidiaries [Member]
Debt Instrument [Line Items]
Amounts available to borrow under Credit Agreement	$ 200,000,000
2017 Credit Agreement [Member] | U.K. subsidiaries [Member]
Debt Instrument [Line Items]
Amounts available to borrow under Credit Agreement	$ 300,000,000

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Loss Contingencies [Line Items]
Lease expiration date	Jan. 1, 2036
Minimum sublease rental income	$ 15,400,000
Letters of credit outstanding	74,900,000
Accrued loan loss	37,900,000	$ 32,900,000
Assets available for recourse	946,900,000
Warehouse receivables	$ 677,400,000
Letters of credit expiration date	2019-09
Guarantees total	$ 56,300,000
Commitments to investment in future real estate investment	53,700,000
Commitments to investment in unconsolidated real estate subsidiary	$ 34,700,000
Maximum [Member]
Loss Contingencies [Line Items]
Co-investments typically range	2.00%
Funded loans subject to loss sharing arrangements [Member]
Loss Contingencies [Line Items]
Funded loans unpaid principal	$ 23,200,000,000
Letters of credit outstanding	64,000,000	58,000,000
SBL Program [Member]
Loss Contingencies [Line Items]
Letters of credit outstanding	5,000,000	$ 5,000,000
Funded loans not subject to loss sharing arrangements [Member]
Loss Contingencies [Line Items]
Letters of credit outstanding	$ 69,000,000

Commitments and Contingencies_2

Commitments and Contingencies - Schedule by Year of Future Minimum Lease Payments for Noncancelable Operating Leases (Detail) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
2,019	$ 238,954
2,020	219,351
2,021	202,205
2,022	172,267
2,023	145,705
Thereafter	510,741
Total minimum payment required	$ 1,489,223

Commitments and Contingencies_3

Commitments and Contingencies - Composition of Total Rental Expense Under Noncancelable (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Leases [Abstract]
Minimum rentals	$ 294,107	$ 276,676	$ 252,285
Less sublease rentals	(2,808)	(3,446)	(4,322)
Rental Expense, Net Total	$ 291,299	$ 273,230	$ 247,963

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Detail)	Dec. 15, 2017shares	Dec. 01, 2017shares	May 19, 2017USD ($)shares	Dec. 31, 2018USD ($)Pension_Planshares	Dec. 31, 2017USD ($)shares	Dec. 31, 2016USD ($)shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined benefit plan				$ 363,600,000	$ 286,500,000	$ 248,100,000
Plan name				CBRE 401(k) Plan
Defined Contribution Plan, Sponsor Location [Extensible List]				us-gaap:DomesticPlanMember
Company contribution percent per year employed				20.00%
Percent of annual compensation match percentage					50.00%	50.00%
Percent of annual compensation to be matched					6.00%	6.00%
Defined benefit plan, annual compensation expense maximum					$ 150,000	$ 150,000
Defined contribution plan, expenses recognized				$ 46,300,000	38,800,000	$ 44,300,000
Percent of 401(k) that can be invested in common stock				25.00%
Number of share held as investment under 401(k) Plan | shares				1,300,000
Defined Benefit Plan, Type [Extensible List]				us-gaap:PensionPlansDefinedBenefitMember
Defined Benefit Plan, Sponsor Location [Extensible List]				us-gaap:ForeignPlanMember
Number of contributory defined benefit pension plans in the United Kingdom | Pension_Plan				2
Fair value of plan assets				$ 274,400,000	333,500,000
Benefit obligation				387,400,000	455,600,000
Funded status				113,000,000	122,100,000
Unamortized actuarial loss				$ 192,700,000	$ 194,300,000
Annual Base Salary of Less than $100,000 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of annual compensation match percentage				67.00%
Percent of annual compensation to be matched				6.00%
Defined benefit plan, annual compensation expense maximum				$ 100,000
Annual Base Salary of $100,000 or Up to $150,000 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of annual compensation match percentage				50.00%
Percent of annual compensation to be matched				6.00%
Defined benefit plan, annual compensation expense minimum				$ 100,000,000
Defined benefit plan, annual compensation expense maximum				$ 150,000
Time Based Vesting [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				4 years
Time-vesting awards, portion to be vested per year				25.00%
Restricted Stock Units [Member] | Time Based Vesting [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant | shares				1,332,085	1,466,986	1,436,310
Restricted Stock Units [Member] | Time Based Vesting [Member] | Senior Brokers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Granted, Shares / Units | shares	127,160
Restricted Stock Units [Member] | Performance Based Vesting [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant | shares				1,014,269	1,458,033	60,098
Non-Vested Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, Shares / Units | shares				2,023,266	5,152,082	1,496,408
Stock options, compensation expense				$ 128,200,000	$ 93,100,000	$ 63,500,000
Stock options, unrecognized estimated compensation cost				$ 197,300,000
Weighted average period of recognition				3 years 3 months 18 days
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee subscription rate				75.00%
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee subscription rate				1.00%
2017 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unissued common stock available for issuance | shares			0
Equity incentive plan termination date				Mar. 3, 2027
Maximum number of share to be granted per person | shares			3,300,000
Maximum amount of share to be granted per person			$ 5,000,000
2017 Equity Incentive Plan [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant | shares				3,632,717
2017 Equity Incentive Plan [Member] | Restricted Stock Units [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of trading days required for purposes of measuring shareholder return based on average closing price of common stock immediately preceding grant date		60 days
2017 Equity Incentive Plan [Member] | Restricted Stock Units [Member] | Time Based Vesting [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Sharebased compensation arrangement by sharebased payment percentage of target restricted stock unit		33.30%
2017 Equity Incentive Plan [Member] | Restricted Stock Units [Member] | Total Shareholder Return [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity incentive plan termination date		Dec. 1, 2023
Sharebased compensation arrangement by sharebased payment percentage of target restricted stock unit		33.30%
Share-based compensation arrangement by share-based payment award, measurement period		6 years
2017 Equity Incentive Plan [Member] | Restricted Stock Units [Member] | EPS [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity incentive plan termination date		Dec. 31, 2023
Sharebased compensation arrangement by sharebased payment percentage of target restricted stock unit		33.30%
Share-based compensation arrangement by share-based payment award, measurement period		6 years
2017 Equity Incentive Plan [Member] | Maximum [Member] | Employee Stock Options And Stock Appreciation Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of equity incentive and stock option plans			10 years
2017 Equity Incentive Plan [Member] | Maximum [Member] | Restricted Stock Units [Member] | Time Based Vesting [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant | shares		939,605		35,031
2017 Equity Incentive Plan [Member] | Maximum [Member] | Restricted Stock Units [Member] | Performance Based Vesting [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant | shares		3,288,618		122,610
2017 Equity Incentive Plan [Member] | Minimum [Member] | Time Based Vesting [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant | shares				3,255,964
Class A Common Stock [Member] | 2017 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance | shares			10,000,000

Employee Benefit Plans - Schedu

Employee Benefit Plans - Schedule of Fair Value of TSR Performance RSUs (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Volatility of common stock	25.02%	27.85%
Expected dividend yield	0.00%	0.00%
Risk-free interest rate	2.73%	2.33%

Employee Benefit Plans - Sche_2

Employee Benefit Plans - Schedule of Non-Vested Stock Awards (Detail) - Non-Vested Stock Awards [Member] - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance, Shares / Units	7,677,102	4,843,273	7,467,065
Granted, Shares / Units	2,023,266	5,152,082	1,496,408
Vested, Shares / Units	(1,894,847)	(2,020,812)	(3,840,379)
Forfeited, Shares / Units	(623,161)	(297,441)	(279,821)
Balance, Shares / Units	7,182,360	7,677,102	4,843,273
Balance, Weighted Average Market Value Per Share	$ 37.76	$ 31.66	$ 29.08
Granted, Weighted Average Market Value Per Share	45.70	40.11	29.24
Vested, Weighted Average Market Value Per Share	34.29	29.75	25.09
Forfeited, Weighted Average Market Value Per Share	40.85	32.85	28.62
Balance, Weighted Average Market Value Per Share	$ 41.04	$ 37.76	$ 31.66

Income Taxes - Components of In

Income Taxes - Components of Income Before Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Domestic	$ 807,590	$ 575,222	$ 536,709
Foreign	571,416	596,111	345,361
Income before provision for income taxes	$ 1,379,006	$ 1,171,333	$ 882,070

Income Taxes - Tax Provision (B

Income Taxes - Tax Provision (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Federal, Current	$ 166,024	$ 275,475	$ 172,380
Federal, Deferred	(7,667)	39,045	27,428
Federal, Total	158,357	314,520	199,808
State, Current	43,320	21,212	20,946
State, Deferred	(3,692)	5,573	375
State, Total	39,628	26,785	21,321
Foreign, Current	149,194	123,840	94,910
Foreign, Deferred	(34,121)	2,612	(19,139)
Foreign, Total	115,073	126,452	75,771
Tax Provision (Benefit), Total	$ 313,058	$ 467,757	$ 296,900

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Pre-Tax Income (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Federal statutory tax rate	21.00%	35.00%	35.00%
State taxes, net of federal benefit	3.00%	2.00%	2.00%
Non-deductible expenses	2.00%	2.00%
Tax Reform	1.00%	12.00%
Change in valuation allowance	(1.00%)	(2.00%)	2.00%
Acquisition-related costs	(2.00%)
Credits and exemptions	(2.00%)	(3.00%)	(2.00%)
Foreign rate differential		(5.00%)	(2.00%)
Reserves for uncertain tax positions		(2.00%)
Other	1.00%	1.00%	(1.00%)
Effective tax rate	23.00%	40.00%	34.00%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax [Line Items]
Federal statutory tax rate	21.00%	35.00%	35.00%
Transition tax on accumulated foreign earnings, for cash and other net current assets		15.50%
Transition tax on accumulated foreign earnings, remaining earnings		8.00%
Tax cuts and jobs act provisional income tax expense benefit		$ 158,000
Income tax benefit remeasurement of deferred tax assets and liabilities		14,600
Provision for income taxes attributable to the tax act	$ 13,300
Additional charge related to transition tax on unremitted foreign earnings	5,300
Reduction to net income tax benefit related to remeasurement of deferred taxes	8,000
Tax cuts and jobs act provisional income tax expense benefit	156,700
Federal net operating losses, deferred tax asset before valuation allowance	15,300
Deferred tax assets before valuation allowances	3,500
Foreign net operating losses, deferred tax asset before valuation allowance	255,900
Deferred tax assets that do not satisfy realization criteria	248,500
Increase (decrease) in valuation allowance	(29,000)
Undistributed earnings	2,100,000
Additional undistributed foreign earnings	0
Unrecognized tax benefits	94,962	35,826	$ 94,915
Unrecognized tax benefits that would affect our effective tax rate	50,200	18,800
Unrecognized tax benefits that would affect our effective tax rate, net of federal benefits received	$ 49,200	18,000
Expiration of U.S. federal statute tax year	2,014
Income tax benefits related to interest and penalties	$ 600	1,000	$ 2,900
Liability for interest and penalties	4,000	3,900
Interest expense	3,500	$ 3,400
Settlement of federal tax audits tax year 2005 to 2012 [Member]
Income Tax [Line Items]
Gross unrecognized tax benefits released	4,500
Income tax benefits related to decreases in tax positions	3,100
Income tax benefits related to interest and penalties	400
Foreign Currency Translation and Tax Rate Changes [Member]
Income Tax [Line Items]
Increase (decrease) in valuation allowance	11,800
Earning of US and Foreign Subsidiaries [Member]
Income Tax [Line Items]
Increase (decrease) in valuation allowance	11,600
U.S. net operating loss utilization [Member]
Income Tax [Line Items]
Increase (decrease) in valuation allowance	1,800
Foreign net operating loss utilization [Member]
Income Tax [Line Items]
Increase (decrease) in valuation allowance	2,000
Valuation Allowance and Deferred Tax Asset Foreign NOLs [Member]
Income Tax [Line Items]
Increase (decrease) in valuation allowance	5,500
Foreign NOLs [Member]
Income Tax [Line Items]
Increase (decrease) in valuation allowance	$ 3,700
Federal [Member]
Income Tax [Line Items]
Payment of transition tax in annual interest-free installments period	8 years
Payment of transition tax expiry year	2,025
Net operating loss carryforwards	$ 72,700
Operating loss carryforward, expiration period	2,027
State [Member]
Income Tax [Line Items]
Payment of transition tax expiry year	2,018
Operating loss carryforward, expiration period	2,019
State [Member] | Income Taxes Payable [Member]
Income Tax [Line Items]
Tax liability transition tax payable	$ 7,400
State [Member] | Non-Current Tax Liabilities [Member]
Income Tax [Line Items]
Tax liability transition tax payable	$ 91,700
Foreign [Member]
Income Tax [Line Items]
Operating loss carryforward, expiration period	2,019

Income Taxes - Temporary Tax Ef

Income Taxes - Temporary Tax Effects (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Bonus and deferred compensation	$ 276,572	$ 208,198
Net operating losses (NOLs) and state tax credits	275,574	283,353
Bad debt and other reserves	57,506	56,313
Pension obligation	22,950	22,148
Investments	5,211	5,573
Tax effect on revenue items related to new revenue recognition guidance	(38,510)	(55,306)
Property and equipment	(49,935)	(40,024)
Unconsolidated affiliates and partnerships	(64,448)	6,267
Capitalized costs and intangibles	(289,674)	(256,087)
All other	(2,457)	(1,441)
Net deferred tax assets before valuation allowance	192,789	228,994
Valuation allowance	(248,511)	(277,466)
Net deferred tax (liabilities)	$ (55,722)	$ (48,472)

Income Taxes - Unrecognized Tax

Income Taxes - Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Beginning balance, unrecognized tax benefits	$ (35,826)	$ (94,915)
Gross increases - tax positions in prior period	(49,412)	(1,400)
Gross decreases - tax positions in prior period		23,896
Gross increases - current-period tax positions	(18,861)	(4,142)
Decreases relating to settlements	4,619	34,259
Reductions as a result of lapse of statute of limitations	4,531	6,497
Foreign exchange movement	(13)	(21)
Ending balance, unrecognized tax benefits	$ (94,962)	$ (35,826)

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Oct. 27, 2016
Equity [Line Items]
Preferred stock shares	25,000,000
Shares repurchased during the period, shares	3,980,656	0	0
Shares repurchased during the period, value	$ 161,034,000
Class A Common Stock [Member]
Equity [Line Items]
Authorized share repurchase term	3 years
Shares repurchased during the period, value	$ 40,000
Average price per share	$ 40.43	$ 0	$ 0
Class A Common Stock [Member] | Maximum [Member]
Equity [Line Items]
Authorized share repurchase amount				$ 250,000,000

Income Per Share Information -

Income Per Share Information - Calculation of Income Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Basic Income Per Share
Net income attributable to CBRE Group, Inc. shareholders	$ 1,063,219	$ 697,109	$ 573,079
Weighted average shares outstanding for basic income per share	339,321,056	337,658,017	335,414,831
Basic income per share attributable to CBRE Group, Inc. shareholders	$ 3.13	$ 2.06	$ 1.71
Diluted Income Per Share
Net income attributable to CBRE Group, Inc. shareholders	$ 1,063,219	$ 697,109	$ 573,079
Weighted average shares outstanding for basic income per share	339,321,056	337,658,017	335,414,831
Dilutive effect of contingently issuable shares	3,801,293	3,121,987	2,982,431
Dilutive effect of stock options	392	3,552	27,301
Weighted average shares outstanding for diluted income per share	343,122,741	340,783,556	338,424,563
Diluted income per share attributable to CBRE Group, Inc. shareholders	$ 3.10	$ 2.05	$ 1.69

Income Per Share Information _2

Income Per Share Information - Additional Information (Detail) - shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Contingently Issuable Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded in computation of diluted income per share	259,274	621,805	1,833,941

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Disaggregation of Revenue from Contracts with Customers (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation Of Revenue [Line Items]
Total revenue	$ 20,658,939	$ 18,048,487	$ 16,830,004
Total revenue	21,340,088	18,628,787	17,369,108
Occupier Outsourcing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	12,904,741	11,145,574	10,373,859
Leasing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	3,375,558	2,863,352	2,651,986
Sales [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,919,140	1,806,313	1,700,503
Property Management [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,244,131	1,155,322	1,056,034
Valuation [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	560,815	527,638	504,370
Commercial Mortgage Origination [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	133,829	112,131	117,814
Total revenue	402,607	338,390	330,352
Investment Management [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	434,405	377,644	369,800
Development Services [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	86,320	60,513	55,638
Loan Servicing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	183,421	157,449	122,517
Other Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	95,121	84,461	86,235
Total Out of Scope of Topic 606 Revenue [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	681,149	580,300	539,104
Americas [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	12,506,861	11,258,285	10,578,010
Total revenue	13,131,906	11,791,377	11,069,965
Americas [Member] | Occupier Outsourcing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	7,797,742	7,089,660	6,570,559
Americas [Member] | Leasing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	2,423,248	2,054,872	1,924,361
Americas [Member] | Sales [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,189,368	1,103,862	1,103,452
Americas [Member] | Property Management [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	709,213	660,147	621,452
Americas [Member] | Valuation [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	261,559	245,179	245,389
Americas [Member] | Commercial Mortgage Origination [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	125,731	104,565	112,797
Total revenue	402,607	338,390	330,352
Americas [Member] | Loan Servicing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	172,096	146,460	111,373
Americas [Member] | Other Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	50,342	48,242	50,230
Americas [Member] | Total Out of Scope of Topic 606 Revenue [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	625,045	533,092	491,955
EMEA [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	5,423,092	4,359,253	4,094,150
Total revenue	5,465,923	4,396,825	4,128,906
EMEA [Member] | Occupier Outsourcing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	4,030,257	3,101,518	2,975,106
EMEA [Member] | Leasing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	526,372	446,446	411,005
EMEA [Member] | Sales [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	428,810	397,130	334,398
EMEA [Member] | Property Management [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	244,370	243,630	221,904
EMEA [Member] | Valuation [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	187,515	165,082	148,856
EMEA [Member] | Commercial Mortgage Origination [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	5,768	5,447	2,881
EMEA [Member] | Loan Servicing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	10,755	10,989	11,144
EMEA [Member] | Other Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	32,076	26,583	23,612
EMEA [Member] | Total Out of Scope of Topic 606 Revenue [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	42,831	37,572	34,756
Asia Pacific [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	2,194,262	1,973,850	1,717,135
Total revenue	2,207,535	1,983,486	1,729,528
Asia Pacific [Member] | Occupier Outsourcing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,076,742	954,396	828,194
Asia Pacific [Member] | Leasing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	421,255	357,983	312,184
Asia Pacific [Member] | Sales [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	300,312	304,344	261,320
Asia Pacific [Member] | Property Management [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	281,882	237,631	203,176
Asia Pacific [Member] | Valuation [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	111,741	117,377	110,125
Asia Pacific [Member] | Commercial Mortgage Origination [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	2,330	2,119	2,136
Asia Pacific [Member] | Loan Servicing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	570
Asia Pacific [Member] | Other Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	12,703	9,636	12,393
Asia Pacific [Member] | Total Out of Scope of Topic 606 Revenue [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	13,273	9,636	12,393
Global Investment Management [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	434,405	377,644	369,800
Total revenue	434,405	377,644	369,800
Global Investment Management [Member] | Investment Management [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	434,405	377,644	369,800
Development Services [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	100,319	79,455	70,909
Total revenue	100,319	79,455	70,909
Development Services [Member] | Leasing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	4,683	4,051	4,436
Development Services [Member] | Sales [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	650	977	1,333
Development Services [Member] | Property Management [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	8,666	13,914	9,502
Development Services [Member] | Development Services [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	$ 86,320	$ 60,513	$ 55,638

Revenue from Contracts with C_4

Revenue from Contracts with Customers - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue From Contract With Customer [Abstract]
Contract assets	$ 381,800,000	$ 330,900,000
Contract assets, current	307,020,000	273,053,000
Increase in contract assets	50,900,000
Contract liabilities	92,500,000	100,600,000
Contract liabilities, current	82,227,000	100,615,000
Recognized revenue included in contract liability	80,500,000
Capitalized contract cost	45,700,000	31,900,000	$ 26,100,000
Capitalized contract cost, amortization of transaction cost	23,400,000	19,200,000	11,900,000
Capitalized contract cost, impairment loss	$ 0	$ 0	$ 0

Segments - Summarized Financial

Segments - Summarized Financial Information by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenue	$ 21,340,088	$ 18,628,787	$ 17,369,108
Depreciation and amortization	451,988	406,114	366,927
Equity income from unconsolidated subsidiaries	324,664	210,207	197,351
Adjusted EBITDA	1,905,168	1,716,774	1,562,347
Americas [Member]
Segment Reporting Information [Line Items]
Revenue	13,131,906	11,791,377	11,069,965
Depreciation and amortization	327,556	289,338	254,118
Equity income from unconsolidated subsidiaries	14,177	18,789	17,892
Adjusted EBITDA	1,111,014	1,011,643	950,573
EMEA [Member]
Segment Reporting Information [Line Items]
Revenue	5,465,923	4,396,825	4,128,906
Depreciation and amortization	80,290	72,322	66,619
Equity income from unconsolidated subsidiaries	1,523	1,553	1,817
Adjusted EBITDA	329,522	309,233	272,894
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	2,207,535	1,983,486	1,729,528
Depreciation and amortization	20,297	18,258	17,810
Equity income from unconsolidated subsidiaries	433	397	223
Adjusted EBITDA	197,684	180,043	142,299
Global Investment Management [Member]
Segment Reporting Information [Line Items]
Revenue	434,405	377,644	369,800
Depreciation and amortization	23,017	24,123	25,911
Equity income from unconsolidated subsidiaries	6,131	7,923	7,243
Adjusted EBITDA	78,469	94,373	83,150
Development Services [Member]
Segment Reporting Information [Line Items]
Revenue	100,319	79,455	70,909
Depreciation and amortization	828	2,073	2,469
Equity income from unconsolidated subsidiaries	302,400	181,545	170,176
Adjusted EBITDA	$ 188,479	$ 121,482	$ 113,431

Segments - Adjusted EBITDA Calc

Segments - Adjusted EBITDA Calculation by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting [Abstract]
Net income attributable to CBRE Group, Inc.	$ 1,063,219	$ 697,109	$ 573,079
Depreciation and amortization	451,988	406,114	366,927
Interest expense	107,270	136,814	144,851
Write-off of financing costs on extinguished debt	27,982
Provision for income taxes	313,058	467,757	296,900
Interest income	8,585	9,853	8,051
EBITDA	1,954,932	1,697,941	1,373,706
Costs associated with our reorganization, including cost-savings initiatives	37,925
Integration and other costs related to acquisitions	9,124	27,351	125,743
Costs incurred in connection with litigation settlement	8,868
Carried interest incentive compensation reversal to align with the timing of associated revenue	(5,261)	(8,518)	(15,558)
One-time gain associated with remeasuring an investment in an unconsolidated subsidiary to fair value as of the date the remaining controlling interest was acquired	(100,420)
Cost-elimination expenses			78,456
Adjusted EBITDA	$ 1,905,168	$ 1,716,774	$ 1,562,347

Segments - Adjusted EBITDA Ca_2

Segments - Adjusted EBITDA Calculation by Segment (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)
Segment Reporting [Abstract]
Severance costs	$ 73.6
Contract termination cost	$ 4.9

Segments - Schedule of Capital

Segments - Schedule of Capital Expenditures by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Capital Expenditures	$ 227,803	$ 178,042	$ 191,205
Americas [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	131,055	127,135	134,046
EMEA [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	63,947	28,716	35,452
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	17,122	19,360	19,179
Global Investment Management [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	15,348	2,776	2,273
Development Services [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	$ 331	$ 55	$ 255

Segments - Schedule of Identifi

Segments - Schedule of Identifiable Assets by Segment (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Identifiable Assets	$ 13,456,793	$ 11,718,396
Operating Segments [Member] | Americas [Member]
Segment Reporting Information [Line Items]
Identifiable Assets	7,432,532	5,808,332
Operating Segments [Member] | EMEA [Member]
Segment Reporting Information [Line Items]
Identifiable Assets	3,168,050	3,013,586
Operating Segments [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Identifiable Assets	978,331	894,066
Operating Segments [Member] | Global Investment Management [Member]
Segment Reporting Information [Line Items]
Identifiable Assets	1,018,999	1,075,691
Operating Segments [Member] | Development Services [Member]
Segment Reporting Information [Line Items]
Identifiable Assets	166,864	176,971
Corporate [Member]
Segment Reporting Information [Line Items]
Identifiable Assets	$ 692,017	$ 749,750

Segments - Schedule of Investme

Segments - Schedule of Investments in Unconsolidated Subsidiaries by Segment (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Investments in Unconsolidated Subsidiaries	$ 216,174	$ 238,001
Americas [Member]
Segment Reporting Information [Line Items]
Investments in Unconsolidated Subsidiaries	41,446	39,105
EMEA [Member]
Segment Reporting Information [Line Items]
Investments in Unconsolidated Subsidiaries	864	852
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Investments in Unconsolidated Subsidiaries	6,845	6,581
Global Investment Management [Member]
Segment Reporting Information [Line Items]
Investments in Unconsolidated Subsidiaries	77,926	83,430
Development Services [Member]
Segment Reporting Information [Line Items]
Investments in Unconsolidated Subsidiaries	$ 89,093	$ 108,033

Segments - Summary of Geographi

Segments - Summary of Geographic Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 21,340,088	$ 18,628,787	$ 17,369,108
Property and equipment, net	721,692	617,739
United States [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	12,264,188	10,954,608	10,434,782
Property and equipment, net	512,110	432,102
United Kingdom [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	2,586,890	2,242,973	2,150,428
Property and equipment, net	71,119	61,335
All other countries [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	6,489,010	5,431,206	$ 4,783,898
Property and equipment, net	$ 138,463	$ 124,302

Segments - Additional Informati

Segments - Additional Information (Detail)	Jan. 01, 2019Segment
Subsequent Event [Member]
Segment Reporting Information [Line Items]
Global business segments	3

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - Employees Other Than Executive Officers [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Loans to related parties	$ 350.1	$ 291.2
Related party transaction, rate	2.89%

Guarantor and Nonguarantor Fi_3

Guarantor and Nonguarantor Financial Statements - Condensed Consolidating Balance Sheet (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	$ 777,219	$ 751,774
Restricted cash	86,725	73,045
Receivables	3,668,591	3,112,289
Warehouse receivables	1,342,468	928,038
Contract assets	307,020	273,053
Prepaid expenses	254,892	215,336
Income taxes receivable	71,684	49,628
Other current assets	245,611	227,421
Total Current Assets	6,754,210	5,630,584
Property and equipment, net	721,692	617,739
Goodwill	3,652,309	3,254,740	$ 2,981,392
Other intangible assets, net	1,441,308	1,399,112
Investments in unconsolidated subsidiaries	216,174	238,001
Deferred tax assets, net	51,703	98,746
Other assets, net	619,397	479,474
Total Assets	13,456,793	11,718,396
Accounts payable and accrued expenses	1,919,827	1,573,672
Accrued bonus and profit sharing	1,189,395	1,078,345
Compensation and employee benefits payable	1,121,179	904,434
Contract liabilities	82,227	100,615
Income taxes payable	68,100	70,634
Warehouse lines of credit (which fund loans that U.S. Government Sponsored Enterprises have committed to purchase)	1,328,761	910,766
Other		16
Total short-term borrowings	1,328,761	910,782
Current maturities of long-term debt	3,146	8
Other current liabilities	90,745	74,454
Total Current Liabilities	5,803,380	4,712,944
Long-term debt, net	1,767,260	1,999,603
Total Long-Term Debt, net	1,767,260	1,999,603
Non-current tax liabilities	172,626	140,792
Deferred tax liabilities, net	107,425	147,218
Other liabilities	596,200	543,225
Total Liabilities	8,446,891	7,543,782
Commitments and contingencies
CBRE Group, Inc. Stockholders’ Equity	4,938,797	4,114,496
Non-controlling interests	71,105	60,118
Total Equity	5,009,902	4,174,614	$ 3,145,900	$ 2,759,070
Total Liabilities and Equity	13,456,793	11,718,396
Eliminations [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Income taxes receivable	(6,099)	(2,162)
Total Current Assets	(6,099)	(2,162)
Investments in consolidated subsidiaries	(15,584,158)	(13,548,193)
Intercompany loan receivable	(3,852,019)	(3,321,330)
Deferred tax assets, net	(2,718)	(5,300)
Total Assets	(19,444,994)	(16,876,985)
Income taxes payable	(6,099)	(2,162)
Total Current Liabilities	(6,099)	(2,162)
Intercompany loan payable	(3,852,019)	(3,321,330)
Total Long-Term Debt, net	(3,852,019)	(3,321,330)
Deferred tax liabilities, net	(2,718)	(5,300)
Total Liabilities	(3,860,836)	(3,328,792)
Commitments and contingencies
CBRE Group, Inc. Stockholders’ Equity	(15,584,158)	(13,548,193)
Total Equity	(15,584,158)	(13,548,193)
Total Liabilities and Equity	(19,444,994)	(16,876,985)
Parent [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	7	7
Income taxes receivable	6,099	2,162
Total Current Assets	6,106	2,169
Investments in consolidated subsidiaries	6,759,815	5,551,781
Total Assets	6,765,921	5,553,950
Accounts payable and accrued expenses	40
Total Current Liabilities	40
Intercompany loan payable	1,827,084	1,439,454
Total Long-Term Debt, net	1,827,084	1,439,454
Total Liabilities	1,827,124	1,439,454
Commitments and contingencies
CBRE Group, Inc. Stockholders’ Equity	4,938,797	4,114,496
Total Equity	4,938,797	4,114,496
Total Liabilities and Equity	6,765,921	5,553,950
CBRE Services [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	34,063	15,604
Receivables	5
Total Current Assets	34,068	15,604
Investments in consolidated subsidiaries	5,595,831	4,930,109
Intercompany loan receivable	2,440,775	2,621,330
Other assets, net	18,257	22,810
Total Assets	8,088,931	7,589,853
Accounts payable and accrued expenses	17,450	29,708
Compensation and employee benefits payable		626
Income taxes payable	720	3,314
Other current liabilities	1,070	55
Total Current Liabilities	19,240	33,703
Long-term debt, net	1,309,876	1,999,603
Total Long-Term Debt, net	1,309,876	1,999,603
Other liabilities		4,766
Total Liabilities	1,329,116	2,038,072
Commitments and contingencies
CBRE Group, Inc. Stockholders’ Equity	6,759,815	5,551,781
Total Equity	6,759,815	5,551,781
Total Liabilities and Equity	8,088,931	7,589,853
Guarantor Subsidiaries [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	261,181	112,048
Restricted cash	13,767	2,095
Receivables	1,340,120	990,923
Warehouse receivables	664,095	479,628
Contract assets	289,214	263,756
Prepaid expenses	122,305	81,106
Income taxes receivable	18,992
Other current assets	56,853	50,556
Total Current Assets	2,766,527	1,980,112
Property and equipment, net	512,110	431,755
Goodwill	2,224,909	1,774,529
Other intangible assets, net	835,270	751,930
Investments in unconsolidated subsidiaries	170,698	197,395
Investments in consolidated subsidiaries	3,228,512	3,066,303
Intercompany loan receivable	700,000	700,000
Deferred tax assets, net	2,666	5,300
Other assets, net	483,790	348,191
Total Assets	10,924,482	9,255,515
Accounts payable and accrued expenses	655,582	404,367
Accrued bonus and profit sharing	685,521	590,534
Compensation and employee benefits payable	662,196	479,306
Contract liabilities	41,045	42,994
Income taxes payable	6,417	13,704
Warehouse lines of credit (which fund loans that U.S. Government Sponsored Enterprises have committed to purchase)	657,731	474,195
Other		16
Total short-term borrowings	657,731	474,211
Current maturities of long-term debt	39
Other current liabilities	70,202	56,260
Total Current Liabilities	2,778,733	2,061,376
Long-term debt, net	18
Intercompany loan payable	2,024,935	1,798,550
Total Long-Term Debt, net	2,024,953	1,798,550
Non-current tax liabilities	164,857	135,396
Deferred tax liabilities, net		29,785
Other liabilities	360,108	300,299
Total Liabilities	5,328,651	4,325,406
Commitments and contingencies
CBRE Group, Inc. Stockholders’ Equity	5,595,831	4,930,109
Total Equity	5,595,831	4,930,109
Total Liabilities and Equity	10,924,482	9,255,515
Nonguarantor Subsidiaries [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	481,968	624,115
Restricted cash	72,958	70,950
Receivables	2,328,466	2,121,366
Warehouse receivables	678,373	448,410
Contract assets	17,806	9,297
Prepaid expenses	132,587	134,230
Income taxes receivable	52,692	49,628
Other current assets	188,758	176,865
Total Current Assets	3,953,608	3,634,861
Property and equipment, net	209,582	185,984
Goodwill	1,427,400	1,480,211
Other intangible assets, net	606,038	647,182
Investments in unconsolidated subsidiaries	45,476	40,606
Intercompany loan receivable	711,244
Deferred tax assets, net	51,755	98,746
Other assets, net	117,350	108,473
Total Assets	7,122,453	6,196,063
Accounts payable and accrued expenses	1,246,755	1,139,597
Accrued bonus and profit sharing	503,874	487,811
Compensation and employee benefits payable	458,983	424,502
Contract liabilities	41,182	57,621
Income taxes payable	67,062	55,778
Warehouse lines of credit (which fund loans that U.S. Government Sponsored Enterprises have committed to purchase)	671,030	436,571
Total short-term borrowings	671,030	436,571
Current maturities of long-term debt	3,107	8
Other current liabilities	19,473	18,139
Total Current Liabilities	3,011,466	2,620,027
Long-term debt, net	457,366
Intercompany loan payable		83,326
Total Long-Term Debt, net	457,366	83,326
Non-current tax liabilities	7,769	5,396
Deferred tax liabilities, net	110,143	122,733
Other liabilities	236,092	238,160
Total Liabilities	3,822,836	3,069,642
Commitments and contingencies
CBRE Group, Inc. Stockholders’ Equity	3,228,512	3,066,303
Non-controlling interests	71,105	60,118
Total Equity	3,299,617	3,126,421
Total Liabilities and Equity	$ 7,122,453	$ 6,196,063

Guarantor and Nonguarantor Fi_4

Guarantor and Nonguarantor Financial Statements - Condensed Consolidating Balance Sheet (Parenthetical) (Detail)	Dec. 31, 2018	Dec. 31, 2017	Dec. 12, 2014	Sep. 26, 2014
4.875% Senior Notes [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Interest rate of long-term debt	4.875%	4.875%
5.25% Senior Notes [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Interest rate of long-term debt	5.25%	5.25%	5.25%	5.25%
5.00% Senior Notes [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Interest rate of long-term debt	5.00%	5.00%

Guarantor and Nonguarantor Fi_5

Guarantor and Nonguarantor Financial Statements - Condensed Consolidating Statement of Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Statement of Income Captions [Line Items]
Revenue	$ 21,340,088	$ 18,628,787	$ 17,369,108
Cost of services	16,449,212	14,305,099	13,420,911
Operating, administrative and other	3,365,773	2,858,720	2,780,301
Depreciation and amortization	451,988	406,114	366,927
Total costs and expenses	20,266,973	17,569,933	16,568,139
Gain on disposition of real estate	14,874	19,828	15,862
Operating income	1,087,989	1,078,682	816,831
Equity income from unconsolidated subsidiaries	324,664	210,207	197,351
Other income (loss)	93,020	9,405	4,688
Interest income	8,585	9,853	8,051
Interest expense	107,270	136,814	144,851
Write-off of financing costs on extinguished debt	27,982
Income before provision for income taxes	1,379,006	1,171,333	882,070
(Benefit of) provision for income taxes	313,058	467,757	296,900
Net income	1,065,948	703,576	585,170
Less: Net income attributable to non-controlling interests	2,729	6,467	12,091
Net income attributable to CBRE Group, Inc.	1,063,219	697,109	573,079
Eliminations [Member]
Condensed Statement of Income Captions [Line Items]
Interest income	(347,259)	(143,425)	(178,499)
Interest expense	(347,259)	(143,425)	(178,499)
Income from consolidated subsidiaries	(2,740,635)	(1,857,622)	(1,423,076)
Income before provision for income taxes	(2,740,635)	(1,857,622)	(1,423,076)
Net income	(2,740,635)	(1,857,622)	(1,423,076)
Net income attributable to CBRE Group, Inc.	(2,740,635)	(1,857,622)	(1,423,076)
Parent [Member] | Reportable Legal Entities [Member]
Condensed Statement of Income Captions [Line Items]
Operating, administrative and other	24,523	5,661	5,003
Total costs and expenses	24,523	5,661	5,003
Operating income	(24,523)	(5,661)	(5,003)
Income from consolidated subsidiaries	1,081,643	700,608	576,167
Income before provision for income taxes	1,057,120	694,947	571,164
(Benefit of) provision for income taxes	(6,099)	(2,162)	(1,915)
Net income	1,063,219	697,109	573,079
Net income attributable to CBRE Group, Inc.	1,063,219	697,109	573,079
CBRE Services [Member] | Reportable Legal Entities [Member]
Condensed Statement of Income Captions [Line Items]
Operating, administrative and other	1,156	1,972	(8,231)
Total costs and expenses	1,156	1,972	(8,231)
Operating income	(1,156)	(1,972)	8,231
Other income (loss)	1	1	1
Interest income	134,259	143,425	131,132
Interest expense	102,228	132,777	184,738
Write-off of financing costs on extinguished debt	27,982
Income from consolidated subsidiaries	1,079,469	695,245	604,177
Income before provision for income taxes	1,082,363	703,922	558,803
(Benefit of) provision for income taxes	720	3,314	(17,364)
Net income	1,081,643	700,608	576,167
Net income attributable to CBRE Group, Inc.	1,081,643	700,608	576,167
Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Condensed Statement of Income Captions [Line Items]
Revenue	11,998,469	10,702,005	10,169,361
Cost of services	9,513,947	8,517,114	8,133,496
Operating, administrative and other	1,773,860	1,485,605	1,454,435
Depreciation and amortization	271,378	239,863	225,552
Total costs and expenses	11,559,185	10,242,582	9,813,483
Gain on disposition of real estate	7,705	6,037	3,669
Operating income	446,989	465,460	359,547
Equity income from unconsolidated subsidiaries	323,080	206,655	192,811
Other income (loss)	103,657	22	(89)
Interest income	6,805	5,453	50,272
Interest expense	328,638	115,947	97,815
Royalty and management service (income) expense	(111,883)	15,950	(39,182)
Income from consolidated subsidiaries	579,523	461,769	242,732
Income before provision for income taxes	1,243,299	1,007,462	786,640
(Benefit of) provision for income taxes	163,830	312,217	182,463
Net income	1,079,469	695,245	604,177
Net income attributable to CBRE Group, Inc.	1,079,469	695,245	604,177
Nonguarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Condensed Statement of Income Captions [Line Items]
Revenue	9,341,619	7,926,782	7,199,747
Cost of services	6,935,265	5,787,985	5,287,415
Operating, administrative and other	1,566,234	1,365,482	1,329,094
Depreciation and amortization	180,610	166,251	141,375
Total costs and expenses	8,682,109	7,319,718	6,757,884
Gain on disposition of real estate	7,169	13,791	12,193
Operating income	666,679	620,855	454,056
Equity income from unconsolidated subsidiaries	1,584	3,552	4,540
Other income (loss)	(10,638)	9,382	4,776
Interest income	214,780	4,400	5,146
Interest expense	23,663	31,515	40,797
Royalty and management service (income) expense	111,883	(15,950)	39,182
Income before provision for income taxes	736,859	622,624	388,539
(Benefit of) provision for income taxes	154,607	154,388	133,716
Net income	582,252	468,236	254,823
Less: Net income attributable to non-controlling interests	2,729	6,467	12,091
Net income attributable to CBRE Group, Inc.	$ 579,523	$ 461,769	$ 242,732

Guarantor and Nonguarantor Fi_6

Guarantor and Nonguarantor Financial Statements - Condensed Consolidating Statement of Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Statement of Income Captions [Line Items]
Net income	$ 1,065,948	$ 703,576	$ 585,170
Foreign currency translation (loss) gain	(161,384)	218,001	(235,614)
Amounts reclassified from accumulated other comprehensive loss to interest expense, net of tax	2,439	4,964	6,839
Unrealized (losses) gains on interest rate swaps, net of tax	708	585	(1,431)
Unrealized holding gains (losses) on available for sale debt securities, net of tax	(971)	2,737	384
Pension liability adjustments, net of tax	1,315	12,701	(63,749)
Other, net	(5,070)	364	(12,091)
Total other comprehensive (loss) income	(166,927)	239,352	(305,662)
Comprehensive income	899,021	942,928	279,508
Less: Comprehensive income attributable to non-controlling interests	1,657	6,879	12,108
Comprehensive income attributable to CBRE Group, Inc.	897,364	936,049	267,400
Eliminations [Member]
Condensed Statement of Income Captions [Line Items]
Net income	(2,740,635)	(1,857,622)	(1,423,076)
Comprehensive income	(2,740,635)	(1,857,622)	(1,423,076)
Comprehensive income attributable to CBRE Group, Inc.	(2,740,635)	(1,857,622)	(1,423,076)
Accounting Standards Update 2016-01
Condensed Statement of Income Captions [Line Items]
Adoption of Accounting Standards Update 2016-01, net	(3,964)
Parent [Member] | Reportable Legal Entities [Member]
Condensed Statement of Income Captions [Line Items]
Net income	1,063,219	697,109	573,079
Other, net		(2)
Total other comprehensive (loss) income		(2)
Comprehensive income	1,063,219	697,107	573,079
Comprehensive income attributable to CBRE Group, Inc.	1,063,219	697,107	573,079
CBRE Services [Member] | Reportable Legal Entities [Member]
Condensed Statement of Income Captions [Line Items]
Net income	1,081,643	700,608	576,167
Amounts reclassified from accumulated other comprehensive loss to interest expense, net of tax	2,439	4,964	6,839
Unrealized (losses) gains on interest rate swaps, net of tax	708	585	(1,431)
Total other comprehensive (loss) income	3,147	5,549	5,408
Comprehensive income	1,084,790	706,157	581,575
Comprehensive income attributable to CBRE Group, Inc.	1,084,790	706,157	581,575
Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Condensed Statement of Income Captions [Line Items]
Net income	1,079,469	695,245	604,177
Unrealized holding gains (losses) on available for sale debt securities, net of tax	(971)	2,557	180
Other, net	7	(21)	(759)
Total other comprehensive (loss) income	(4,928)	2,536	(579)
Comprehensive income	1,074,541	697,781	603,598
Comprehensive income attributable to CBRE Group, Inc.	1,074,541	697,781	603,598
Guarantor Subsidiaries [Member] | Accounting Standards Update 2016-01 | Reportable Legal Entities [Member]
Condensed Statement of Income Captions [Line Items]
Adoption of Accounting Standards Update 2016-01, net	(3,964)
Nonguarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Condensed Statement of Income Captions [Line Items]
Net income	582,252	468,236	254,823
Foreign currency translation (loss) gain	(161,384)	218,001	(235,614)
Unrealized holding gains (losses) on available for sale debt securities, net of tax		180	204
Pension liability adjustments, net of tax	1,315	12,701	(63,749)
Other, net	(5,077)	387	(11,332)
Total other comprehensive (loss) income	(165,146)	231,269	(310,491)
Comprehensive income	417,106	699,505	(55,668)
Less: Comprehensive income attributable to non-controlling interests	1,657	6,879	12,108
Comprehensive income attributable to CBRE Group, Inc.	$ 415,449	$ 692,626	$ (67,776)

Guarantor and Nonguarantor Fi_7

Guarantor and Nonguarantor Financial Statements - Condensed Consolidating Statement of Cash Flows (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Cash Flow Statements, Captions [Line Items]
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:	$ 1,131,249	$ 894,411	$ 616,985
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(227,803)	(178,042)	(191,205)
Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired	(322,573)	(118,427)	(21,077)
Contributions to unconsolidated subsidiaries	(62,802)	(68,700)	(66,816)
Distributions from unconsolidated subsidiaries	61,709	63,664	46,775
Net proceeds from disposition of real estate held for investment	14,174		44,326
Purchase of equity securities	(21,402)	(15,584)	(15,506)
Proceeds from sale of equity securities	16,314	15,587	16,954
Purchase of available for sale debt securities	(23,360)	(19,280)	(22,155)
Proceeds from the sale of available for sale debt securities	5,792	15,790	18,097
Other investing activities, net	(733)	2,392	40,083
Net cash used in investing activities	(560,684)	(302,600)	(150,524)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from senior term loans	1,002,745	200,000
Repayment of senior term loans	(450,000)	(751,876)	(136,250)
Proceeds from revolving credit facility	3,258,000	1,521,000	2,909,000
Repayment of revolving credit facility	(3,258,000)	(1,521,000)	(2,909,000)
Repayment of 5.00% senior notes (including premium)	(820,000)
Proceeds from notes payable on real estate	7,599	4,333	25,001
Repayment of notes payable on real estate	(19,058)	(12,556)	(38,046)
Repayment of debt assumed in acquisition of FacilitySource	(26,295)
Repurchase of common stock	(161,034)
Acquisition of businesses (cash paid for acquisitions more than three months after purchase date)	(18,660)	(24,006)	(21,034)
Units repurchased for payment of taxes on equity awards	(29,386)	(29,549)	(27,426)
Non-controlling interest contributions	25,355	5,301	2,272
Non-controlling interest distributions	(13,413)	(8,715)	(19,133)
Payment of financing costs	(2,088)	(7,999)	(5,618)
Other financing activities, net	(2,365)	(2,675)	(443)
Net cash used in financing activities	(506,600)	(627,742)	(220,677)
Effect of currency exchange rate changes on cash and cash equivalents and restricted cash	(24,840)	29,338	(27,539)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	39,125	(6,593)	218,245
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD	824,819	831,412	613,167
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD	863,944	824,819	831,412
Cash paid during the period for:
Interest	104,165	117,164	125,800
Income taxes, net	375,849	356,997	294,848
Parent [Member]
Condensed Cash Flow Statements, Captions [Line Items]
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:	105,850	89,341	84,393
CASH FLOWS FROM FINANCING ACTIVITIES:
Repurchase of common stock	(161,034)
Units repurchased for payment of taxes on equity awards	(29,386)	(29,549)	(27,426)
Decrease (increase) in intercompany receivables, net	84,213	(60,271)	(57,880)
Other financing activities, net	357	479	915
Net cash used in financing activities	(105,850)	(89,341)	(84,391)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH			2
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD	7	7	5
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD	7	7	7
CBRE Services [Member]
Condensed Cash Flow Statements, Captions [Line Items]
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:	21,834	37,990	(23,643)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from senior term loans	550,000	200,000
Repayment of senior term loans	(450,000)	(751,876)	(136,250)
Proceeds from revolving credit facility	3,258,000	1,521,000	2,909,000
Repayment of revolving credit facility	(3,258,000)	(1,521,000)	(2,909,000)
Repayment of 5.00% senior notes (including premium)	(820,000)
Payment of financing costs	(212)	(7,978)	(5,459)
Decrease (increase) in intercompany receivables, net	716,837	520,579	173,762
Net cash used in financing activities	(3,375)	(39,275)	32,053
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	18,459	(1,285)	8,410
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD	15,604	16,889	8,479
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD	34,063	15,604	16,889
Cash paid during the period for:
Interest	102,491	117,072	122,605
Guarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:	429,540	424,787	296,501
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(140,670)	(121,347)	(115,049)
Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired	(305,315)	(87,248)	(2,191)
Contributions to unconsolidated subsidiaries	(51,046)	(63,119)	(47,192)
Distributions from unconsolidated subsidiaries	57,269	52,896	39,340
Purchase of equity securities	(21,402)	(15,584)	(15,506)
Proceeds from sale of equity securities	16,314	15,587	16,954
Purchase of available for sale debt securities	(23,360)	(19,280)	(22,155)
Proceeds from the sale of available for sale debt securities	5,792	15,790	18,097
Other investing activities, net	2,793	1,968	19,178
Net cash used in investing activities	(459,625)	(220,337)	(108,524)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt assumed in acquisition of FacilitySource	(26,295)
Acquisition of businesses (cash paid for acquisitions more than three months after purchase date)	(16,774)	(19,854)	(1,125)
Decrease (increase) in intercompany receivables, net	233,975	(338,396)	(68,422)
Other financing activities, net	(16)	(3,145)	(1,173)
Net cash used in financing activities	190,890	(361,395)	(70,720)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	160,805	(156,945)	117,257
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD	114,143	271,088	153,831
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD	274,948	114,143	271,088
Cash paid during the period for:
Income taxes, net	198,930	198,520	174,164
Nonguarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:	574,025	342,293	259,734
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(87,133)	(56,695)	(76,156)
Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired	(17,258)	(31,179)	(18,886)
Contributions to unconsolidated subsidiaries	(11,756)	(5,581)	(19,624)
Distributions from unconsolidated subsidiaries	4,440	10,768	7,435
Net proceeds from disposition of real estate held for investment	14,174		44,326
Other investing activities, net	(3,526)	424	20,905
Net cash used in investing activities	(101,059)	(82,263)	(42,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from senior term loans	452,745
Proceeds from notes payable on real estate	7,599	4,333	25,001
Repayment of notes payable on real estate	(19,058)	(12,556)	(38,046)
Acquisition of businesses (cash paid for acquisitions more than three months after purchase date)	(1,886)	(4,152)	(19,909)
Non-controlling interest contributions	25,355	5,301	2,272
Non-controlling interest distributions	(13,413)	(8,715)	(19,133)
Payment of financing costs	(1,876)	(21)	(159)
Decrease (increase) in intercompany receivables, net	(1,035,025)	(121,912)	(47,460)
Other financing activities, net	(2,706)	(9)	(185)
Net cash used in financing activities	(588,265)	(137,731)	(97,619)
Effect of currency exchange rate changes on cash and cash equivalents and restricted cash	(24,840)	29,338	(27,539)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	(140,139)	151,637	92,576
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD	695,065	543,428	450,852
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD	554,926	695,065	543,428
Cash paid during the period for:
Interest	1,674	92	3,195
Income taxes, net	$ 176,919	$ 158,477	$ 120,684

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - USD ($)	1 Months Ended		12 Months Ended
	Feb. 28, 2019	Jan. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Oct. 27, 2016
Subsequent Event [Line Items]
Payments for repurchase of additional shares			$ 161,034,000
Class A Common Stock [Member]
Subsequent Event [Line Items]
Average price per share			$ 40.43	$ 0	$ 0
Authorized share repurchase term			3 years
Class A Common Stock [Member] | Maximum [Member]
Subsequent Event [Line Items]
Authorized share repurchase amount						$ 250,000,000
Subsequent Event [Member] | Class A Common Stock [Member]
Subsequent Event [Line Items]
Payments for repurchase of additional shares		$ 45,100,000
Shares repurchased during the period		1,144,449
Average price per share		$ 39.38
Authorized share repurchase term	3 years
Subsequent Event [Member] | Class A Common Stock [Member] | Maximum [Member]
Subsequent Event [Line Items]
Authorized share repurchase amount	$ 300,000,000

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Valuation And Qualifying Accounts [Abstract]
Beginning balance	$ 46,789	$ 39,469	$ 46,606
Charges to expense	19,760	8,044	4,711
Write-offs, payments and other	(6,201)	(724)	(11,848)
Ending balance	$ 60,348	$ 46,789	$ 39,469