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Guarantor and Nonguarantor Financial Statements - Condensed Consolidating Statement of Cash Flows (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Condensed Cash Flow Statements, Captions [Line Items] |  |
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: | $ (249,958) | $ (321,398)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Capital expenditures | (46,724) | (23,735)
Contributions to unconsolidated subsidiaries | (10,611) | (14,567)
Distributions from unconsolidated subsidiaries | 15,216 | 6,875
Purchase of equity securities | (10,219) | (3,375)
Proceeds from sale of equity securities | 4,367 | 3,415
Purchase of available for sale debt securities | (12,066) |
Proceeds from the sale of available for sale debt securities | 2,264 |
Other investing activities, net | (6,439) | 1,080
Net cash used in investing activities | (64,212) | (43,277)
Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired |  | (12,861)
Purchase of available for sale debt securities | (12,066) | (3,914)
Proceeds from sale of available for sale debt securities | 2,264 | 3,805
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Proceeds from senior term loans | 550,000 |
Proceeds from revolving credit facility | 898,000 | 266,000
Repayment of revolving credit facility | (435,000) | (146,000)
Repayment of 5.00% senior notes (including premium) | (820,000) |
Proceeds from notes payable on real estate held for investment | 49 |
Repayment of notes payable on real estate held for investment | (462) | (435)
Proceeds from notes payable on real estate held for sale and under development | 775 | 1,711
Acquisition of businesses (cash paid for acquisitions more than three months after purchase date) | (8,049) | (8,343)
Units repurchased for payment of taxes on equity awards | (4,550) | (1,900)
Non-controlling interest contributions | 1,595 | 1,574
Non-controlling interest distributions | (1,025) | (744)
Other financing activities, net | 12 | 308
Net cash provided by financing activities | 181,345 | 109,427
Repayment of notes payable on real estate held for sale and under development |  | (2,744)
Effect of currency exchange rate changes on cash and cash equivalents and restricted cash | 29,819 | 16,163
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH | (103,006) | (239,085)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD | 824,819 | 831,412
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD | 721,813 | 592,327
Cash paid during the period for: |  |
Interest | 48,994 | 52,027
Income taxes, net | 37,219 | 37,333
Parent [Member] |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: | 26,028 | 17,610
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Units repurchased for payment of taxes on equity awards | (4,550) | (1,900)
(Increase) decrease in intercompany receivables, net | (21,532) | (16,020)
Other financing activities, net | 54 | 310
Net cash provided by financing activities | (26,028) | (17,610)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD | 7 | 7
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD | 7 | 7
CBRE Services [Member] |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: | (21,075) | (6,445)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Proceeds from senior term loans | 550,000 |
Proceeds from revolving credit facility | 898,000 | 266,000
Repayment of revolving credit facility | (435,000) | (146,000)
Repayment of 5.00% senior notes (including premium) | (820,000) |
(Increase) decrease in intercompany receivables, net | (179,368) | (121,766)
Other financing activities, net | (39) |
Net cash provided by financing activities | 13,593 | (1,766)
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH | (7,482) | (8,211)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD | 15,604 | 16,889
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD | 8,122 | 8,678
Cash paid during the period for: |  |
Interest | 48,490 | 51,987
Guarantor Subsidiaries [Member] |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: | (200,152) | (311,417)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Capital expenditures | (30,870) | (17,095)
Contributions to unconsolidated subsidiaries | (7,932) | (11,086)
Distributions from unconsolidated subsidiaries | 14,869 | 6,676
Purchase of equity securities | (10,219) | (3,914)
Proceeds from sale of equity securities | 4,367 | 3,805
Purchase of available for sale debt securities | (12,066) |
Proceeds from the sale of available for sale debt securities | 2,264 |
Other investing activities, net | (6,590) | 1,275
Net cash used in investing activities | (46,177) | (33,160)
Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired |  | (12,861)
Purchase of available for sale debt securities |  | (3,375)
Proceeds from sale of available for sale debt securities |  | 3,415
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Acquisition of businesses (cash paid for acquisitions more than three months after purchase date) | (11,463) | (7,717)
(Increase) decrease in intercompany receivables, net | 217,675 | 126,426
Net cash provided by financing activities | 206,212 | 118,709
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH | (40,117) | (225,868)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD | 114,143 | 271,088
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD | 74,026 | 45,220
Cash paid during the period for: |  |
Income taxes, net | 118 | 5,176
Nonguarantor Subsidiaries [Member] |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: | (54,759) | (21,146)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Capital expenditures | (15,854) | (6,640)
Contributions to unconsolidated subsidiaries | (2,679) | (3,481)
Distributions from unconsolidated subsidiaries | 347 | 199
Purchase of equity securities |  | 539
Proceeds from sale of equity securities |  | (390)
Other investing activities, net | 151 | (195)
Net cash used in investing activities | (18,035) | (10,117)
Purchase of available for sale debt securities |  | (539)
Proceeds from sale of available for sale debt securities |  | 390
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Proceeds from notes payable on real estate held for investment | 49 |
Repayment of notes payable on real estate held for investment | (462) | (435)
Proceeds from notes payable on real estate held for sale and under development | 775 | 1,711
Acquisition of businesses (cash paid for acquisitions more than three months after purchase date) | 3,414 | (626)
Non-controlling interest contributions | 1,595 | 1,574
Non-controlling interest distributions | (1,025) | (744)
(Increase) decrease in intercompany receivables, net | (16,775) | 11,360
Other financing activities, net | (3) | (2)
Net cash provided by financing activities | (12,432) | 10,094
Repayment of notes payable on real estate held for sale and under development |  | (2,744)
Effect of currency exchange rate changes on cash and cash equivalents and restricted cash | 29,819 | 16,163
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH | (55,407) | (5,006)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD | 695,065 | 543,428
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD | 639,658 | 538,422
Cash paid during the period for: |  |
Interest | 504 | 40
Income taxes, net | $ 37,101 | $ 32,157

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- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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