Mitel Networks (MITL) 10-Q 5 Nov 15 2015 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Oct. 30, 2015
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
Trading Symbol	MITL
Entity Registrant Name	MITEL NETWORKS CORP
Entity Central Index Key	1,170,534
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		120,309,301

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions		Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents		$ 82.9	$ 111.3
Accounts receivable (net of allowance for doubtful accounts of $16.4 and $13.2, respectively)		239.6	237.5
Sales-type lease receivables (net) (note 4)		13.8	18.1
Inventories (net) (note 5)		110.9	88.3
Deferred tax asset		60.7	31.7
Other current assets (note 6)		82.9	53.2
Assets, Current, Total		590.8	540.1
Non-current portion of sales-type lease receivables (net) (note 4)		18.1	19.7
Deferred tax asset		122.2	133.6
Property and equipment (net)		55	50.7
Identifiable intangible assets (net) (note 7)		399.3	175.8
Goodwill		664.6	340.3
Other non-current assets		10.9	11.6
Assets, Total		1,860.9	1,271.8
Current liabilities:
Accounts payable and accrued liabilities (note 8)		251.1	215
Current portion of deferred revenue		107	78.2
Current portion of long-term debt (note 10)		11.7	6.2
Liabilities, Current, Total		369.8	299.4
Long-term debt (note 10)		634.6	303.6
Long-term portion of deferred revenue		39	35.6
Deferred tax liability		40.7	15.3
Pension liability (note 11)		143.7	136.1
Other non-current liabilities		34.9	34
Liabilities, Total		$ 1,262.7	$ 824
Commitments, guarantees and contingencies (note 12)
Shareholders' equity:
Common shares, without par value -issued and outstanding: 120.3 and 100.1, respectively		$ 1,410.5	$ 1,216.3
Warrants (note 14)	[1]	39.1	39.1
Additional paid-in capital		46.5	38
Accumulated deficit		(713)	(698.6)
Accumulated other comprehensive loss		(184.9)	(147)
Stockholders' Equity Attributable to Parent, Total		598.2	447.8
Liabilities and Equity, Total		$ 1,860.9	$ 1,271.8
[1]	At September 30, 2015, there were 2.48 million warrants outstanding that were issued in connection with government funding (December 31, 2014-2.48 million). The warrants have an exercise price of nil, are exercisable at any time at the option of the holder and have no expiry date.

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Millions, $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Accounts receivable, allowance for doubtful accounts	$ 16.4	$ 13.2
Common shares, without par value
Common shares, shares issued	120.3	100.1
Common shares, shares outstanding	120.3	100.1

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues	$ 290.7	$ 272.4	$ 815.7	$ 802.6
Cost of revenues	138	129.5	382.9	378.5
Gross margin	152.7	142.9	432.8	424.1
Expenses:
Selling, general and administrative	94.7	87.4	268.1	256.1
Research and development	35.4	30.3	96.3	88.5
Special charges and restructuring costs (note 16)	10.3	31.6	37.6	55.7
Amortization of acquisition-related intangible assets	22.3	14	55.8	39.3
Operating Expenses, Total	162.7	163.3	457.8	439.6
Operating loss	(10)	(20.4)	(25)	(15.5)
Interest expense	(9.6)	(5.2)	(22)	(16.6)
Debt retirement and other debt costs (note 10)	(0.5)	(0.7)	(9.6)	(16.2)
Other income (expense) (note 20)	(0.5)	2.9	20	4.7
Loss, before income taxes	(20.6)	(23.4)	(36.6)	(43.6)
Current income tax recovery (expense)	0.6	3.1	(5.4)	2.8
Deferred income tax recovery (expense)	11.9	15	27.6	22.7
Net loss	$ (8.1)	$ (5.3)	$ (14.4)	$ (18.1)
Net loss per common share
Basic	$ (0.07)	$ (0.05)	$ (0.13)	$ (0.19)
Diluted	$ (0.07)	$ (0.05)	$ (0.13)	$ (0.19)
Weighted-average number of common shares outstanding (note 15)
Basic	120.2	99.6	111.4	94.1
Diluted	120.2	99.6	111.4	94.1
Premise
Revenues	$ 207.9	$ 241.7	$ 636.6	$ 718.6
Cost of revenues	96.1	114.1	294.3	336.3
Gross margin	111.8	127.6	342.3	382.3
Cloud
Revenues	40.4	30.7	112.2	84
Cost of revenues	20.3	15.4	56.6	42.2
Gross margin	20.1	$ 15.3	55.6	$ 41.8
Mobile
Revenues	42.4		66.9
Cost of revenues	21.6		32
Gross margin	$ 20.8		$ 34.9

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net loss	$ (8.1)	$ (5.3)	$ (14.4)	$ (18.1)
Other comprehensive income (loss):
Foreign currency translation adjustments	(0.7)	(9.4)	(28.1)	(7.3)
Pension liability adjustments	4.6	(8.6)	(9.8)	(28.3)
Other comprehensive loss, net of tax, total	3.9	(18)	(37.9)	(35.6)
Comprehensive loss	$ (4.2)	$ (23.3)	$ (52.3)	$ (53.7)

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common Shares	Warrants	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balance (in shares) at Dec. 31, 2013		54.4
Balance at Dec. 31, 2013	$ 118.4	$ 814.9	$ 39.1	$ 35.3	$ (691.3)	$ (79.6)
Comprehensive income (loss)	$ (19.2)				(13.6)	(5.6)
Exercise of stock options (in shares)	0.3	0.3
Exercise of stock options	$ 1.6	$ 2.3		(0.7)
Stock-based compensation	1.3			1.3
Issuance of shares (note 3) (in shares)		44.2
Issuance of shares (note 3)	391.3	$ 391.3
Balance (in shares) at Mar. 31, 2014		98.9
Balance at Mar. 31, 2014	493.4	$ 1,208.5	39.1	35.9	(704.9)	(85.2)
Balance (in shares) at Dec. 31, 2013		54.4
Balance at Dec. 31, 2013	118.4	$ 814.9	39.1	35.3	(691.3)	(79.6)
Comprehensive income (loss)	(53.7)
Balance (in shares) at Sep. 30, 2014		99.9
Balance at Sep. 30, 2014	466.5	$ 1,215.2	39.1	36.8	(709.4)	(115.2)
Balance (in shares) at Mar. 31, 2014		98.9
Balance at Mar. 31, 2014	493.4	$ 1,208.5	39.1	35.9	(704.9)	(85.2)
Comprehensive income (loss)	$ (11.2)				0.8	(12)
Exercise of stock options (in shares)	0.5	0.5
Exercise of stock options	$ 2.4	$ 3.9		(1.5)
Stock-based compensation	1.7			1.7
Balance (in shares) at Jun. 30, 2014		99.4
Balance at Jun. 30, 2014	486.3	$ 1,212.4	39.1	36.1	(704.1)	(97.2)
Comprehensive income (loss)	$ (23.3)				(5.3)	(18)
Exercise of stock options (in shares)	0.5	0.5
Exercise of stock options	$ 2	$ 2.8		(0.8)
Stock-based compensation	1.5			1.5
Balance (in shares) at Sep. 30, 2014		99.9
Balance at Sep. 30, 2014	466.5	$ 1,215.2	39.1	36.8	(709.4)	(115.2)
Comprehensive income (loss)	(21)				10.8	(31.8)
Exercise of stock options (in shares)		0.2
Exercise of stock options	0.7	$ 1.1		(0.4)
Stock-based compensation	$ 1.6			1.6
Balance (in shares) at Dec. 31, 2014	100.1	100.1
Balance at Dec. 31, 2014	$ 447.8	$ 1,216.3	39.1	38	(698.6)	(147)
Comprehensive income (loss)	$ (43.4)				5.3	(48.7)
Exercise of stock options (in shares)	0.1	0.1
Exercise of stock options	$ 0.8	$ 1.4		(0.6)
Stock-based compensation	1.8			1.8
Balance (in shares) at Mar. 31, 2015		100.2
Balance at Mar. 31, 2015	$ 407	$ 1,217.7	39.1	39.2	(693.3)	(195.7)
Balance (in shares) at Dec. 31, 2014	100.1	100.1
Balance at Dec. 31, 2014	$ 447.8	$ 1,216.3	39.1	38	(698.6)	(147)
Comprehensive income (loss)	$ (52.3)
Balance (in shares) at Sep. 30, 2015	120.3	120.3
Balance at Sep. 30, 2015	$ 598.2	$ 1,410.5	39.1	46.5	(713)	(184.9)
Balance (in shares) at Mar. 31, 2015		100.2
Balance at Mar. 31, 2015	407	$ 1,217.7	39.1	39.2	(693.3)	(195.7)
Comprehensive income (loss)	$ (4.7)				(11.6)	6.9
Exercise of stock options (in shares)	0.2	0.2
Exercise of stock options	$ 0.4	$ 1.6		(1.2)
Stock-based compensation	3.3			3.3
Issuance of shares (note 3) (in shares)		19.7
Issuance of shares (note 3)	189.2	$ 189.2
Stock options issued as consideration for the acquisition of Mavenir (note 3)	2.8			2.8
Balance (in shares) at Jun. 30, 2015		120.1
Balance at Jun. 30, 2015	598	$ 1,408.5	39.1	44.1	(704.9)	(188.8)
Comprehensive income (loss)	$ (4.2)				(8.1)	3.9
Exercise of stock options (in shares)	0.1	0.2
Exercise of stock options	$ 0.6	$ 2		(1.4)
Stock-based compensation	$ 3.8			3.8
Balance (in shares) at Sep. 30, 2015	120.3	120.3
Balance at Sep. 30, 2015	$ 598.2	$ 1,410.5	$ 39.1	$ 46.5	$ (713)	$ (184.9)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
CASH PROVIDED BY (USED IN) Operating activities:
Net loss	$ (8.1)	$ (5.3)	$ (14.4)	$ (18.1)
Adjustments to reconcile net loss to net cash provided by operating activities:
Amortization and depreciation	28.6	19.7	73.4	55.5
Stock-based compensation	3.8	1.5	8.9	4.5
Deferred income taxes expense (recovery)	(11.9)	(15)	(27.6)	(22.7)
Non-cash portion of debt retirement and other debt costs (note 10)	0.5	0.7	9.6	15.7
Non-cash movements in provisions	0.1	(0.5)	(0.6)	(2.4)
Change in non-cash operating assets and liabilities (note 18)	4.3	19.3	(12.8)	40.5
Net cash provided by operating activities	17.3	20.4	36.5	73
Investing activities:
Additions to property, equipment and intangible assets	(3.9)	(2.4)	(11.2)	(9.9)
Acquisitions, net of cash acquired (note 3)		(2)	(343.7)	(8.2)
Net cash used in investing activities	(3.9)	(4.4)	(354.9)	(18.1)
Financing activities:
Proceeds from issuance of long-term debt (note 10)			653.4	353.2
Repayment of senior credit facilities (note 10)	(1.7)	(25)	(305.8)	(309.4)
Repayment of acquired long-term debt (note 3)			(30.4)
Prepayment fees relating to prior credit facilities (note 10)				(4.2)
Payment of deferred financing costs and other debt costs (note 10)	(2.4)		(19.6)	(11)
Repayment of capital lease liabilities and other long-term debt	(2)	(1.6)	(5.9)	(5.7)
Proceeds from issuance of common shares from option exercises	0.6	2	1.8	6
Net cash provided by (used in) financing activities	(5.5)	(24.6)	293.5	28.9
Effect of exchange rate changes on cash and cash equivalents	(1)	(5.5)	(3.5)	(3.9)
Net increase (decrease) in cash and cash equivalents	6.9	(14.1)	(28.4)	79.9
Cash and cash equivalents, beginning of period	76	134.2	111.3	40.2
Cash and cash equivalents, end of period	$ 82.9	$ 120.1	$ 82.9	$ 120.1

BASIS OF PRESENTATION

BASIS OF PRESENTATION	9 Months Ended
	Sep. 30, 2015
BASIS OF PRESENTATION	1. BASIS OF PRESENTATION These unaudited interim consolidated financial statements (“Interim Financial Statements”) have been prepared by Mitel Networks Corporation (“Mitel” or the “Company”) in United States (“U.S.”) dollars and, unless otherwise stated, in accordance with accounting principles generally accepted in the U.S. (“GAAP”) for interim financial statements. Accordingly, the Interim Financial Statements do not include all information and footnotes normally included in annual financial statements prepared in accordance with GAAP and the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) for annual financial statements. In the opinion of management, the Interim Financial Statements reflect all adjustments of a normal recurring nature that are necessary for a fair presentation of the results for the interim periods presented. These Interim Financial Statements and the accompanying notes should be read in conjunction with the annual financial statements and notes thereto for the year ended December 31, 2014, eight months ended December 31, 2013 and each of the two years ended April 30, 2013 and 2012 (the “Annual Financial Statements”) contained in the Company’s annual report on Form 10-K filed with the SEC on February 26, 2015. The results of operations for the periods presented are not necessarily indicative of the results to be expected for the full year or future periods.

SIGNIFICANT ACCOUNTING POLICIES

SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2015
SIGNIFICANT ACCOUNTING POLICIES	2. SIGNIFICANT ACCOUNTING POLICIES The Company’s significant accounting policies at December 31, 2014 are described in note 2 to the Annual Financial Statements. In addition to these policies, the Company has adopted a significant accounting policy relating to revenue recognition as a result of the acquisition of Mavenir Systems, Inc. (“Mavenir”), as described below. Also, in connection with the acquisition of Mavenir, the Company changed its operating segments, as described in note 17. Revenue recognition – Mobile business segment The Mobile segment generates revenues primarily from the sale of networking solutions. A networking solution generally consists of software licenses for a fixed number of subscribers, implementation services and an initial period of post-contract support. Networking solutions may also include standard hardware, such as servers. After the initial implementation of a networking solution, the Company may sell additional software licenses (“Capacity Licenses”), which may include additional hardware to support the Capacity Licenses, and additional periods of post-contract support. Networking solutions The implementation of a networking solution generally requires significant customization and integration into the customer’s network and often takes over six months to complete. The Company accounts for these networking solutions under industry-specific software guidance. Under this guidance, software licenses, implementation services and when applicable, hardware, are considered a single contract deliverable and revenue is recognized in accordance with contract accounting guidance. Where Vendor-Specific Objective Evidence (“VSOE”) of fair value of post-contract support is available, post-contract support is considered a separate element and is recognized ratably over the support period. A portion of the consideration is allocated to post-contract support based on the VSOE of fair value, while the residual amount is allocated to the other contract deliverable. If VSOE of fair value for post-contract support is not available, the entire arrangement is allocated ratably over the period of post-contract support. For the deliverable recognized under contract accounting, the Company uses a percentage-of-completion method based on project hours incurred to date compared to total project hours expected under the contract. Under the percentage-of-completion method, management makes key judgments in areas such as estimated total project hours and total project costs. Changes in job performance, job conditions, and complications relating to the integration into a customer’s network may result in changes to total project hours and total project costs from what was previously estimated. Capacity Licenses Capacity Licenses may be sold separately or bundled together with hardware and/or post-contract support. When bundled, the Capacity Licenses, hardware and post-contract support are generally considered as separate deliverable elements. Revenue is recognized for Capacity Licenses when risks and rewards have been transferred, for hardware typically when the customer has accepted the hardware and for post-contract support over the term of the support period. The consideration is first allocated to the hardware and software elements based on the relative selling price of each. The estimated selling price of the Capacity Licenses is based on management’s best estimate, the selling price of the hardware is based on third party evidence of fair value and the selling price for post-contract support is based on VSOE of fair value. The consideration allocated to the software elements is then further bifurcated with VSOE of fair value determining the amount allocated to post-customer support and the residual being allocated to the Capacity Licenses. Post-contract support Post-contract support is recognized ratably over the support period, as the service is provided. Where post-contract support is bundled with software elements in a transaction, a portion of the consideration is allocated to post-contract support based on the VSOE of fair value of the post-contract support. VSOE of fair value is considered the price a customer would be required to pay if the post-contract support was sold separately and is calculated annually based on the historical experience of stand-alone sales of post-contract support to third parties. Recently issued accounting pronouncements Other than the accounting pronouncements below, there have been no recent accounting pronouncements that are expected to have a significant effect on the consolidated financial statements. Revenue recognition In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09 to provide a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers. The ASU adds a Revenue from Contracts with Customers Going concern assessment and disclosure requirements In May 2014, the FASB issued ASU 2014-15 to provide guidance in relation to management’s assessment of an entity’s ability to continue as a going concern and to provide disclosure requirements in certain circumstances. The amendment becomes effective for the Company in the first quarter of 2016. The Company does not expect the adoption to have a material impact on its consolidated financial statements. Classification of debt issue costs In April 2015, the FASB issued ASU 2015-03 to require debt issue costs, related to a recognized debt liability, be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The Company adopted this amendment in the second quarter of 2015. The adoption resulted in $7.0 of debt issue costs at December 31, 2014 being reclassified from other non-current assets to a direct deduction from the carrying amount of long-term debt. In addition, debt issue costs relating to the April 2015 refinancing and September 2015 amendment have been recorded as a direct deduction from the carrying amount of long-term debt, as disclosed in note 10. Simplifying the accounting for measurement-period adjustments from acquisitions In September 2015, the FASB issued ASU 2015-16 to simplify the accounting for adjustments made to provisional amounts recognized in a business combination. Adjustments that are identified during the measurement period are now required to be recorded in the reporting period in which the adjustment amounts are determined, rather than retrospectively. The Company adopted this amendment in the third quarter of 2015. The adoption did not have a material impact on its consolidated financial statements.

ACQUISITIONS

ACQUISITIONS	9 Months Ended
	Sep. 30, 2015
ACQUISITIONS	3. ACQUISITIONS a) Mavenir – April 2015 On April 29, 2015, Mitel acquired Mavenir Systems, Inc. (“Mavenir”) (NYSE:MVNR), a global provider of software-based networking solutions for mobile carriers. Mitel acquired all of the outstanding common shares of Mavenir in exchange for $325.2 cash and 19.7 million Mitel shares. In addition, Mitel agreed to cash out all in-the-money, vested Mavenir stock options and, in exchange for all out-of-the-money and unvested Mavenir stock options, issue 2.5 million Mitel stock options with economically similar terms. Mitel management believes the acquisition will provide the Company with growth opportunities in the telephony application server market, in particular, in relation to Voice over LTE (“VoLTE”), will expand our current mobile service provider relationships and will extend our voice expertise from fixed-line to mobility. Management expects the transaction will also allow the Company to leverage the research and development workforce acquired, as well as realize synergies. These factors contributed to the recognition of goodwill for the acquisition. The Company is required to allocate the purchase price to tangible and identifiable intangible assets acquired and liabilities assumed based on their fair values. The excess of the purchase price over those fair values is recorded as goodwill. The accounting for the acquisition, including estimating the fair values of assets and liabilities acquired, is still being completed. As a result, the final purchase price allocation, which is expected to be completed by December 31, 2015, may differ significantly from the estimates. The estimated purchase price and allocation of the purchase price is as follows: April 29, 2015 Net assets: Cash and cash equivalents $ 10.1 Accounts receivable (1) 35.1 Inventories (2) 6.5 Deferred tax asset, current 17.7 Other current assets 36.4 Property and equipment 9.0 Intangible assets – customer relationships (3)(6) 99.9 Intangible assets – developed technology (4)(6) 172.9 Goodwill (5)(6) 317.4 Other non-current assets 3.8 Deferred tax asset, non-current 0.8 Accounts payable and accrued liabilities (64.2 ) Deferred revenue, current (16.6 ) Current portion of long-term debt (7) (27.2 ) Deferred revenue, non-current (0.3 ) Deferred tax liability (49.3 ) Other non-current liabilities (6.7 ) Net assets acquired $ 545.3 Consideration given: Cash paid to Mavenir shareholders $ 325.2 Cash paid to Mavenir optionholders (8) 28.1 Value of Mitel common shares issued to Mavenir shareholders (9) 189.2 Value of Mitel options relating to past service issued to Mavenir optionholders (10) 2.8 Total consideration given $ 545.3 (1) Fair value of accounts receivable consists of gross contractual amounts receivable of $36.3, less best estimate of amounts not expected to be collected of $1.2. (2) Fair value of inventory consists of inventory with a historical cost of $8.5 less a historical provision of $2.0. (3) Intangible assets – customer relationships are expected to be amortized over the estimated useful life of the asset of 7 years. (4) Intangible assets – developed technology is expected to be amortized over the estimated useful life of the asset of 7 years. (5) Goodwill is allocated to the Mobile segment. (6) Neither the goodwill nor the intangible assets are expected to be deductible for tax purposes. (7) Long-term debt of Mavenir was repaid at closing. (8) Cash paid to Mavenir optionholders for vested, in-the-money options. (9) Fair value of the 19.7 million Mitel common shares issued to Mavenir shareholders valued at $189.2 based on the closing price of a Mitel common share on the NASDAQ stock market on April 28, 2015. (10) In exchange for all unvested in-the-money Mavenir stock options and all vested and unvested out-of-the-money Mavenir stock options, Mitel issued 2.5 million Mitel stock options with economically similar terms. Using a Black-Scholes valuation with assumptions consistent with grants made in the normal course as described in note 13, the fair value of the 2.5 million stock options totaled $13.0. Based on the vesting period of the original Mavenir stock options, $2.8 was determined to relate to past service and is considered part of the total consideration. The remaining amount will be recorded as stock-based compensation expense by Mitel based on the vesting period. Mavenir’s results of operations are included in the consolidated statements of operations of the combined entity from the date of acquisition and are included in the Mobile segment, as described in note 17. The amount of revenue from the acquisition included in the Company’s results of operations for the three and nine months ended September 30, 2015 was $42.4 and $66.9, respectively, which includes a reduction of $0.7 and $14.1, respectively, as a result of the valuation of in-progress contracts. As a result of purchase accounting, Mitel only records revenue for the value of work performed subsequent to the acquisition. As a result, the fair value of in-progress contracts, representing work completed up to the acquisition date, is not recorded as revenue by Mitel. As these contracts were recorded on a completed contract basis by Mavenir prior to the acquisition, no revenue was recognized for these contracts by Mavenir prior to the acquisition. In addition, the revenue for the three and nine months ended September 30, 2015 reflects a reduction of $1.5 and $2.7, respectively, as a result of the valuation of the deferred revenue liabilities acquired being below Mavenir’s historical book value and the corresponding decrease in revenues in subsequent periods. The amount of net loss from the acquisition included in the Company’s results of operations for the three and nine months ended September 30, 2015 was $11.9 and $19.8, respectively, which includes the adjustments to revenue described above as well as a corresponding decrease to cost of sales of $1.2 and $9.7, respectively, and amortization of acquired intangible assets of $10.9 and $16.2, respectively. The following unaudited pro-forma financial information presents the Company’s consolidated financial results as if the acquisition had occurred at the beginning of the earliest fiscal year: Three Months Ended September 30 Nine Months Ended September 30 2015 2014 2015 2014 Operations Revenues $ 290.7 $ 305.3 $ 847.7 $ 917.4 Net loss $ (8.1 ) $ (19.7 ) $ (73.5 ) $ (79.9 ) Net loss per share $ (0.07 ) $ (0.17 ) $ (0.61 ) $ (0.68 ) These pro-forma results have been prepared for comparative purposes only and are not necessarily indicative of the results of operations that actually would have resulted had the acquisition been effected at the beginning of the respective periods and are not necessarily representative of future results. The pro-forma results include the following adjustments: • Amortization of intangible assets that arose from the acquisition of $31.6 per year. • A reduction to revenue as a result of the valuation of the deferred revenue acquired being below Mavenir’s historical book value as well as the valuation of in-progress contracts, as described above. The pro-forma reduction for the three and nine months ended September 30, 2015 was nil and $1.4 (relating to the pro-forma period from January 1, 2015 to April 29, 2015). When added to the reduction in revenue as a result of the valuation of deferred revenue already recorded in the actual results, the total reduction to revenue for the three and nine months ended September 30, 2015 was $2.1 and $18.1, respectively. The reduction to revenue as a result of the valuation of in-progress contracts and deferred revenue for the three and nine months ended September 30, 2014 was $1.2 and $17.2, respectively. • A corresponding decrease to cost of sales as a result of the valuation of in-progress contracts, as described above. Including the decrease in cost of sales already recorded in the actual results, the total decrease to cost of sales for the three and nine months ended September 30, 2015 was $1.2 and $9.7, respectively. The decrease to cost of sales as a result of the valuation of deferred revenue for the three and nine months ended September 30, 2014 was nil and $8.5, respectively. • A tax provision based on an estimated effective tax rate of nil as a result of unrecognized tax loss carryforwards. • The January 2014 results of Aastra Technologies Limited (“Aastra”), acquired on January 31, 2014, as described in note 3(c), below. The pro-forma results for Aastra for January 2014 are described in note 3 to the Annual Financial Statements. The acquisitions of TigerTMS Ltd. (“Tiger”), as described in note 3(b), and Oaisys, as described in note 3(d), have not been included as they are not considered material. b) Tiger TMS – June 2015 On June 1, 2015, Mitel acquired all of the outstanding equity of Tiger, a global provider of software, cloud and applications-based solutions for the hospitality industry. Tiger recorded revenues of approximately $10.0 for the year ended December 31, 2014, which were primarily generated in Europe, the Middle East and the United States. Total consideration for the acquisition is estimated to be $9.0, consisting of $1.8 of cash paid on June 1, 2015, $3.0 expected to be paid in the fourth quarter of 2015 and an estimate of contingent consideration of $4.2, which is based on the operations of Tiger meeting certain revenue targets for the years ending December 31, 2015 and December 31, 2016. In addition, Mitel repaid $3.2 of long-term debt of Tiger at closing. The accounting for the acquisition, including estimating the fair values of assets and liabilities acquired, is still being completed. As a result, the final purchase price allocation, which is expected to be completed by December 31, 2015, may differ significantly from the estimates. The estimated purchase price and allocation of the purchase price is as follows: June 1, 2015 Net assets: Cash and cash equivalents $ 1.3 Accounts receivable 2.8 Inventories 0.3 Other current assets 0.2 Property and equipment 0.1 Intangible assets – customer relationships (1)(3) 3.9 Intangible assets – developed technology (2)(3) 2.3 Goodwill (3) 6.9 Accounts payable and accrued liabilities (0.7 ) Deferred revenue, current (3.6 ) Current portion of long-term debt (4) (3.2 ) Deferred tax liability, non-current (1.3 ) Net assets acquired $ 9.0 Consideration given: Cash paid, June 1, 2015 $ 1.8 Estimated amounts due in the fourth quarter of 2015 (5) 3.0 Estimated fair value of contingent consideration 4.2 Total consideration given $ 9.0 (1) Intangible assets – customer relationships are expected to be amortized over the estimated useful life of the asset of 7 years. (2) Intangible assets – developed technology is expected to be amortized over the estimated useful life of the asset of 6 years. (3) Neither the goodwill nor the intangible assets are expected to be deductible for tax purposes. (4) Long-term debt of Tiger was repaid at closing. (5) Includes a working capital adjustment expected to be finalized in the fourth quarter of 2015. Tiger’s results of operations are included in the consolidated statements of operations of the combined entity from the date of acquisition, June 1, 2015 and are included in the Premise segment. c) Aastra – January 2014 On January 31, 2014, Mitel acquired Aastra, a global provider of unified communications and collaboration software, solutions and services with annual revenues of approximately $600.0 Canadian dollars for the year ended December 31, 2013, of which approximately 75% were generated in Europe. The total value of consideration given by Mitel was $471.3, consisting of $80.0 of cash and 44.2 million Mitel common shares valued at $391.3 for a 100% equity interest in Aastra. In conjunction with the acquisition the Company completed a refinancing of its long-term senior debt, as described in note 10. Aastra’s results of operations are included in the results of operations of the combined entity from the date of acquisition. Additional details of the acquisition, including the allocation of the purchase price to the net assets acquired, are included in note 3 to the Annual Financial Statements. d) Oaisys – March 2014 On March 4, 2014, Mitel completed the acquisition of Oaisys, a developer of integrated call recording and quality management solutions. Mitel paid $7.9 for a 100% equity ownership of Oaisys. Oaisys’ results of operations are included in the results of operations of the combined entity from the date of acquisition. Additional details of the acquisition, including the allocation of the purchase price to the net assets acquired, are included in note 3 to the Annual Financial Statements.

NET INVESTMENT IN SALES-TYPE LE

NET INVESTMENT IN SALES-TYPE LEASES	9 Months Ended
	Sep. 30, 2015
NET INVESTMENT IN SALES-TYPE LEASES	4. NET INVESTMENT IN SALES-TYPE LEASES Net investment in sales-type leases represents the value of sales-type leases held in the U.S. and Europe. The Company currently sells the rental payments due to the Company from some of the sales-type leases in the U.S. The Company maintains reserves against its estimate of potential recourse for the balance of sales-type leases (recorded net, against the receivable) and for the balance of sold rental payments remaining unbilled (recorded separately as a lease recourse liability included in other non-current liabilities). The following table provides detail on the sales-type leases: September 30, 2015 December 31, 2014 Gross Allowance Net Gross Allowance Net Lease balances included in accounts receivable $ 5.5 $ (1.2 ) $ 4.3 $ 7.4 $ (1.2 ) $ 6.2 Current portion of investment in sales-type leases 14.1 (0.3 ) 13.8 18.6 (0.5 ) 18.1 Non-current portion of investment in sales-type leases 18.5 (0.4 ) 18.1 20.1 (0.4 ) 19.7 Total unsold sales-type leases (recorded as assets, net, on the consolidated balance sheets) 38.1 (1.9 ) 36.2 46.1 (2.1 ) 44.0 Sold rental payments remaining unbilled 50.5 (1.6 ) (1) 48.9 63.9 (2.2 ) (1) 61.7 Total of sales-type leases unsold and sold $ 88.6 $ (3.5 ) $ 85.1 $ 110.0 $ (4.3 ) $ 105.7 (1) Allowance for sold rental payments is recorded as a lease recourse liability and included in other non-current liabilities on the consolidated balance sheets. A sale of rental payments represents the total present value of the payment stream on the sale of the rental payments to third parties. For the three and nine months ended September 30, 2015, the Company sold $4.8 and $11.6, respectively of rental payments and recorded gains on sale of those rental payments of $0.8 and $2.0, respectively (three and nine months ended September 30, 2014—sold $4.0 and $13.2, respectively, and recorded gains of $0.7 and $2.3, respectively). Sold rental payments remaining unbilled at the end of the period represents the total balance of leases that are not included in the Company’s consolidated balance sheets. The Company is compensated for administration and servicing of rental payments sold. Financing receivables The Company considers its lease balances included in accounts receivable and its investment in sales-type leases to be financing receivables. Additional disclosures on the credit quality of the Company’s sold and unsold sales-type leases and lease balances included in accounts receivable are as follows: Aging Analysis as of September 30, 2015 Not past due 1-90 days Greater than Total past due Total sales-type leases Lease balances included in accounts receivable $ 2.9 $ 1.6 $ 1.0 $ 2.6 $ 5.5 Investment in sold and unsold sales-type lease receivables 74.9 7.7 0.5 8.2 83.1 Total gross sales-type leases 77.8 9.3 1.5 10.8 88.6 Allowance (1.5 ) (0.8 ) (1.2 ) (2.0 ) (3.5 ) Total net sales-type leases $ 76.3 $ 8.5 $ 0.3 $ 8.8 $ 85.1 Aging Analysis as of December 31, 2014 Not past due 1-90 days Greater than Total past due Total sales-type leases Lease balances included in accounts receivable $ 4.3 $ 1.8 $ 1.3 $ 3.1 $ 7.4 Investment in sold and unsold sales-type lease receivables 92.3 9.5 0.8 10.3 102.6 Total gross sales-type leases 96.6 11.3 2.1 13.4 110.0 Allowance (2.0 ) (1.0 ) (1.3 ) (2.3 ) (4.3 ) Total net sales-type leases $ 94.6 $ 10.3 $ 0.8 $ 11.1 $ 105.7 Allowance for credit losses The Company’s allowance for credit losses is based on management’s assessment of the collectability of customer accounts. A considerable amount of judgment is required in order to make this assessment including a detailed analysis of the aging of the lease receivables, the current creditworthiness of our customers and an analysis of historical bad debts and other adjustments. If there is a deterioration of a major customer’s creditworthiness or actual defaults are higher than historical experience, the estimate of the recoverability of amounts due could be adversely affected. The Company reviews in detail the allowance for doubtful accounts on a quarterly basis and adjusts the allowance estimate to reflect actual portfolio performance and any changes in future portfolio performance expectations. The following table shows the activity of the allowance for credit losses on sales-type leases: Allowance for credit losses on sales-type leases, December 31, 2013 $ (5.0 ) Additions due to the acquisition of Aastra (1.1 ) Write-offs 2.2 Provision (0.4 ) Allowance for credit losses on sales-type leases, December 31, 2014 $ (4.3 ) Write-offs 0.3 Provision (0.1 ) Allowance for credit losses on sales-type leases, March 31, 2015 $ (4.1 ) Write-offs 0.4 Allowance for credit losses on sales-type leases, June 30, 2015 $ (3.7 ) Write-offs 0.2 Allowance for credit losses on sales-type leases, September 30, 2015 $ (3.5 ) The amount of gross sales-type leases individually and collectively evaluated for impairment is as follows: September 30, 2015 December 31, 2014 Individually evaluated for impairment Sales-type leases individually evaluated for impairment, gross $ 3.1 $ 4.4 Allowance against sales-type leases individually evaluated for impairment (1.7 ) (2.1 ) Sales-type leases individually evaluated for impairment, net $ 1.4 $ 2.3 September 30, 2015 December 31, 2014 Collectively evaluated for impairment Sales-type leases collectively evaluated for impairment, gross $ 85.5 $ 105.6 Allowance against sales-type leases collectively evaluated for impairment (1.8 ) (2.2 ) Sales-type leases collectively evaluated for impairment, net $ 83.7 $ 103.4

INVENTORIES

INVENTORIES	9 Months Ended
	Sep. 30, 2015
INVENTORIES	5. INVENTORIES September 30, 2015 December 31, 2014 Raw materials and work in process $ 5.9 $ 4.2 Finished goods (1) 104.5 83.0 Service inventory 7.2 6.5 Less: provision for excess and obsolete inventory (1) (6.7 ) (5.4 ) $ 110.9 $ 88.3 (1) At September 30, 2015, finished goods are recorded net of approximately $17.1 of historical inventory provision remaining primarily from the acquisition of Aastra, as discussed in note 3 to the Annual Financial Statements (December 31, 2014 - $23.6). This amount will decrease as the related inventory acquired is sold or written off.

OTHER CURRENT ASSETS

OTHER CURRENT ASSETS	9 Months Ended
	Sep. 30, 2015
OTHER CURRENT ASSETS	6. OTHER CURRENT ASSETS September 30, 2015 December 31, 2014 Prepaid expenses and deferred charges $ 32.3 $ 22.5 Unbilled receivables 25.0 3.5 Due from related parties (note 9) 0.6 0.4 Income tax receivable 10.0 10.4 Other receivables 14.0 16.1 Restricted cash 1.0 0.3 $ 82.9 $ 53.2

IDENTIFIABLE INTANGIBLE ASSETS

IDENTIFIABLE INTANGIBLE ASSETS	9 Months Ended
	Sep. 30, 2015
IDENTIFIABLE INTANGIBLE ASSETS	7. IDENTIFIABLE INTANGIBLE ASSETS September 30, 2015 December 31, 2014 Cost Accumulated amortization Net Cost Accumulated amortization Net Developed technology $ 421.6 $ (139.4 ) $ 282.2 $ 246.4 $ (101.0 ) $ 145.4 Customer relationships 217.0 (109.3 ) 107.7 113.2 (94.1 ) 19.1 Patents, trademarks and other 31.7 (22.3 ) 9.4 30.5 (19.2 ) 11.3 $ 670.3 $ (271.0 ) $ 399.3 $ 390.1 $ (214.3 ) $ 175.8

ACCOUNTS PAYABLE AND ACCRUED LI

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES	9 Months Ended
	Sep. 30, 2015
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES	8. ACCOUNTS PAYABLE AND ACCRUED LIABILITIES September 30, 2015 December 31, 2014 Trade payables $ 63.4 $ 54.4 Employee-related payables 51.6 48.2 Accrued liabilities 72.3 58.6 Restructuring, warranty and other provisions 27.2 31.8 Due to related parties (note 9) 0.6 0.6 Other payables 36.0 21.4 $ 251.1 $ 215.0

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	9 Months Ended
	Sep. 30, 2015
RELATED PARTY TRANSACTIONS	9. RELATED PARTY TRANSACTIONS The Matthews Group Dr. Terence Matthews (“Dr. Matthews”), a director of the Company, and certain entities controlled by Dr. Matthews (collectively, the “Matthews Group”) is a shareholder of the Company and is party to a Shareholders’ Agreement, as disclosed in note 16 to the Annual Financial Statements. Significant transactions with the Matthews Group include the following: Leased properties The Company leases its Ottawa-based headquarter facilities from the Matthews Group. During the three and nine months ended September 30, 2015, Mitel recorded lease expense for base rent and operating costs of $1.1 and $3.2, respectively (three and nine months ended September 30, 2014—$1.3 and $3.9, respectively). Other Other sales to and purchases from companies related to the Matthews Group arising in the normal course of the Company’s business were $0.4 and $1.5, respectively, for the three months ended September 30, 2015 (three months ended September 30, 2014—$0.1 and $0.8, respectively) and were $2.2 and $2.8, respectively, for the nine months ended September 30, 2015 (nine months ended September 30, 2014—$0.7 and $3.8, respectively). The amounts receivable and payable as a result of all of the above transactions are included in note 6 and note 8, respectively.

LONG-TERM DEBT

LONG-TERM DEBT	9 Months Ended
	Sep. 30, 2015
LONG-TERM DEBT	10. LONG-TERM DEBT April 2015 credit facilities In conjunction with the acquisition of Mavenir, as described in note 3, Mitel refinanced its January 2014 credit facilities. The new credit facilities consist of a $660.0 term loan and a $50.0 revolving facility (the “April 2015 Credit Facilities”). Proceeds of $653.4 (net of original discount of $6.6), along with cash on hand, were used to repay the remaining $279.1 principal outstanding under the January 2014 credit facilities, to repay the remaining $26.9 principal outstanding under Mavenir’s credit facilities, for the cash consideration paid for the acquisition of Mavenir (as described in note 3), as well as accrued interest, fees and expenses in connection with the refinancing and the acquisition of Mavenir. Costs relating to the April 2015 Credit Facilities were $17.2, in addition to an original issue discount of $6.6. Costs of $15.5 and original issue discount of $6.6 related to the term loan are recorded net against the term loan and are amortized over the term of the term loan. Costs of $1.7 relating to the revolving facility are recorded as other non-current assets and are amortized on a straight-line basis over the term of the revolving facility. In addition, the Company expensed $8.4 of unamortized debt issue costs and unamortized original issue discount relating to the refinancing of the January 2014 credit facilities. In September 2015, the Company amended the April 2015 Credit Facilities to provide the Company with additional operating flexibility. The amendment included, in part, an increase in the maximum Leverage Ratio financial covenant for the fiscal quarters ending September 30, 2015, December 31, 2015 and March 31, 2016, as described below, and an increase to the applicable margin on the term loan. The company incurred $1.9 of consent fees payable to the lenders and other costs, which are deferred and amortized over the remaining term of the term loan, as well as other fees and expenses of $0.5, which were expensed as debt retirement and other debt costs as incurred. The undrawn $50.0 revolving credit facility bears interest at LIBOR plus an applicable margin, which is initially 4.0%, or, at the option of the Company, a base rate plus an applicable margin, and matures in April 2020. The Company may borrow Canadian dollars under the revolving credit facility. Such borrowings bear interest at the Canadian prime rate plus an applicable margin. The $660.0 term loan bears interest at LIBOR (subject to a 1.0% floor) plus 4.5% or, at the option of the Company, a base rate plus an applicable margin, and matures in April 2022. The term loan requires quarterly principal repayments of 0.25% of the original outstanding principal. The Company is also required to make annual principal repayments on the term loan based on a percentage of excess cash flow (as defined in the April 2015 Credit Facilities). The annual excess cash flow repayments are required to be paid within 100 days of the end of the fiscal year. The first annual excess cash flow payment is required be paid within 100 days of December 31, 2016. The Company may prepay the term loan at a premium of 1% over the principal amount up to September 29, 2016 using proceeds from a refinancing. Otherwise, the term loan can be repaid without premium or penalty. The April 2015 Credit Facilities have customary default clauses, such that repayment of the credit facilities may be accelerated in the event of an uncured default. The proceeds from the issuance of debt, and proceeds from the sale of Company assets, may also be required to be used, in whole or in part, to make mandatory prepayments under the April 2015 Credit Facilities. The April 2015 Credit Facilities contain affirmative and negative covenants, including: (a) periodic financial reporting requirements, (b) a maximum ratio of Consolidated Total Debt (net of up to $75.0 of unrestricted cash) to the trailing twelve months of Consolidated EBITDA, as specified in the April 2015 Credit Facilities (“Leverage Ratio”), (c) limitations on the incurrence of subsidiary indebtedness and also the borrowers themselves, (d) limitations on liens, (e) limitations on investments, (f) limitations on the payment of dividends and (g) limitations on capital expenditures. The maximum Leverage Ratio, as amended in September 2015, applies to the Company for the period ending September 30, 2015 and for all fiscal quarters thereafter until maturity, and is as follows: Fiscal Quarters Ending Maximum Consolidated September 30, 2015 through December 31, 2015 5.25:1.00 March 31, 2016 4.75:1.00 June 30, 2016 through September 30, 2016 4.25:1.00 December 31, 2016 through September 30, 2017 3.25:1.00 December 31, 2017 through September 30, 2018 3.00:1.00 December 31, 2018 through September 30, 2019 2.75:1.00 December 31, 2019 and thereafter 2.50:1.00 The Company’s maximum Leverage Ratio and actual Leverage Ratio is as follows: Period Ending Maximum Actual September 30, 2015 5.25 3.87 February 2015 voluntary debt repayment In February 2015, Mitel made a voluntary prepayment of $25.0 on its term loan. As a result, the Company recorded debt retirement and other debt costs of $0.7 in the first quarter of 2015 for the write-off of the pro-rata portion of unamortized debt issue costs and original issue discount. January 2014 refinancing On January 31, 2014, in conjunction with the acquisition of Aastra, as described in note 3, Mitel refinanced its senior secured credit facilities. The new credit facilities initially consisted of a $355.0 term loan and a $50.0 revolving facility (the “January 2014 Credit Facilities”). Proceeds of $353.2 (net of original discount of $1.8), along with cash on hand, were used to repay the remaining $258.5 outstanding on the prior credit facilities, the $80.0 of cash consideration paid for the acquisition of Aastra, as well as fees and expenses in connection with the refinancing and the acquisition of Aastra. Total fees and expenses related to the January 2014 Credit Facilities of $11.0 were initially deferred and amortized over the term of the credit facilities using the effective interest method when related to the term loan and the straight-line method when related to the revolving facility. Original issue discount of $1.8 was amortized over the term of the credit facilities using the effective interest method. In addition, the Company expensed $10.0 of unamortized debt issue costs and unamortized original issue discount relating to the prior credit facilities, $4.2 of prepayment fees relating to the prior credit facilities and $0.5 of other costs relating to the refinancing. Additional details on the January 2014 Credit Facilities are included in note 13 to the Annual Financial Statements.

PENSION PLANS

PENSION PLANS	9 Months Ended
	Sep. 30, 2015
PENSION PLANS	11. PENSION PLANS The Company and its subsidiaries maintain defined contribution pension plans that cover a significant number of employees. In addition, the Company maintains defined benefit pension plans primarily in the U.K., France and Germany as well as a multiple-employer The Company’s net periodic benefit cost was as follows: Three months ended September 30 Nine months ended September 30 2015 2014 2015 2014 Defined contribution plans Contribution expense $ 2.7 $ 3.5 $ 8.7 $ 9.5 Defined benefit plans Current service cost 0.7 0.5 2.3 1.5 Interest cost 3.0 3.5 8.8 10.1 Expected return on plan assets (2.8 ) (3.4 ) (8.2 ) (10.0 ) Recognized actuarial loss (1) 0.6 0.2 1.7 0.6 Total periodic benefit cost, net $ 4.2 $ 4.3 $ 13.3 $ 11.7 (1) Recognized actuarial loss represents the amortization of unrecognized actuarial loss out of the accumulated other comprehensive loss into selling, general and administrative expense.

COMMITMENTS, GUARANTEES AND CON

COMMITMENTS, GUARANTEES AND CONTINGENCIES	9 Months Ended
	Sep. 30, 2015
COMMITMENTS, GUARANTEES AND CONTINGENCIES	12. COMMITMENTS, GUARANTEES AND CONTINGENCIES Intellectual Property Indemnification Obligations The Company enters into agreements on a regular basis with customers and suppliers that include limited intellectual property indemnification obligations that are customary in the industry. These guarantees generally require the Company to compensate the other party for certain damages and costs incurred as a result of third party intellectual property claims arising from these transactions. The nature of these intellectual property indemnification obligations prevents the Company from making a reasonable estimate of the maximum potential amount it could be required to pay to its customers and suppliers. Historically, the Company has not made any significant indemnification payments under such agreements and no amount has been accrued in the Interim Financial Statements with respect to these guarantees. Contingencies The Company is party to a small number of legal proceedings, claims or potential claims arising in the normal course of business. The Company’s management and legal counsel estimates that any monetary liability or financial impact of such claims or potential claims to which the Company might be subject after final adjudication would not be material to the consolidated financial position of the Company, its results of operations or its cash flows. In circumstances where the outcome of the lawsuit is expected to be unfavorable, the Company has recorded a provision for the expected settlement amount. Where the expected settlement amount is a range, the Company has provided for the best estimate within that range. If no amount within the range is more likely, then the Company has provided for the minimum amount of the range. Letters of Credit and Guarantees Requests for providing commitments to extend credit and financial guarantees are reviewed and approved by management. Management regularly reviews all outstanding commitments, letters of credit and financial guarantees, and the results of these reviews are considered in assessing the adequacy of the Company’s reserve for possible credit and guarantee losses. Letters of credit, bank guarantees and other similar instruments amounted to $7.6 as of September 30, 2015 (December 31, 2014 — $4.0). The estimated fair value of letters of credit, bank guarantees and similar instruments, which is equal to the fees paid to obtain the obligations, was not significant as of September 30, 2015 and December 31, 2014.

SHARE CAPITAL

SHARE CAPITAL	9 Months Ended
	Sep. 30, 2015
SHARE CAPITAL	13. SHARE CAPITAL Share Capital At September 30, 2015 and December 31, 2014, the Company’s authorized capital stock consisted of an unlimited number of common shares and an unlimited number of preferred shares. The holders of common shares are entitled to one vote per share and are entitled to dividends when and if declared by the Board of Directors. Stock Options Following is a summary of the Company’s stock option activity (in millions, except per option amounts): 2015 2014 Number of Weighted Average Number of Weighted Average Outstanding options: Balance, beginning of first quarter 6.8 $ 6.12 7.2 $ 5.10 Granted 1.0 $ 9.70 0.3 $ 8.79 Exercised (0.1 ) $ 7.00 (0.3 ) $ 4.90 Forfeited (0.2 ) $ 5.56 — (1) $ 4.57 Expired — (1) $ 10.24 — (1) $ 7.61 Balance, end of first quarter 7.5 $ 6.58 7.2 $ 5.28 Granted in normal course 0.2 $ 8.96 0.8 $ 10.14 Granted in connection with the acquisition of Mavenir (note 3) 2.5 $ 7.50 — $ — Exercised (0.2 ) $ 4.82 (0.5 ) $ 4.96 Forfeited (0.1 ) $ 7.71 — (1) $ 4.76 Expired — (1) $ 7.89 (0.1 ) $ 4.91 Balance, end of second quarter 9.9 $ 6.86 7.4 $ 5.83 Granted in normal course 0.4 $ 8.31 0.2 $ 9.96 Exercised (0.1 ) $ 4.21 (0.5 ) $ 4.24 Forfeited (0.2 ) $ 9.40 (0.1 ) $ 5.66 Expired (0.1 ) $ 7.83 — (1) $ 4.46 Balance, end of third quarter 9.9 $ 6.89 7.0 $ 6.03 Number of options exercisable 5.1 $ 6.19 3.6 $ 5.81 (1) Number of options is less than 0.1 for the period. The Company used the Black-Scholes option-pricing model to determine the fair value of the stock option grants during the period. The assumptions used are summarized as follows: Three Months Ended September 30, 2015 June 30, 2015 March 31, 2015 September June March Number of options granted in normal course 0.4 0.2 1.0 0.2 0.8 0.3 Risk-free interest rate 1.5 % 1.3 % 1.6 % 1.7 % 1.6 % 1.5 % Dividends 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % Expected volatility 52.0 % 52.0 % 52.0 % 55.0 % 55.0 % 55.0 % Annual forfeiture rate 10.0 % 10.0 % 10.0 % 10.0 % 10.0 % 10.0 % Expected life of the options 5 years 5 years 5 years 5 years 5 years 5 years Weighted average fair value per option $ 3.66 $ 3.93 $ 4.49 $ 4.63 $ 4.70 $ 4.06 In addition, in the three and nine months ended September 30, 2015 the Company granted 0.6 million and 2.2 million restricted stock units, respectively (three and nine months ended September 30, 2014 —0.4 million and 0.7 million, respectively). At September 30, 2015, 2.7 million restricted stock units were outstanding (December 31, 2014—0.7 million). The number of stock-based awards available for grant under the Company’s 2014 Equity Incentive Plan at September 30, 2015 was 4.7 million (December 31, 2014—8.3 million).

WARRANTS

WARRANTS	9 Months Ended
	Sep. 30, 2015
WARRANTS	14. WARRANTS The following table outlines the carrying value of warrants outstanding: September 30, 2015 December 31, 2014 Warrants issued in connection with government funding (1) $ 39.1 $ 39.1 (1) At September 30, 2015, there were 2.48 million warrants outstanding that were issued in connection with government funding (December 31, 2014—2.48 million). The warrants have an exercise price of nil, are exercisable at any time at the option of the holder and have no expiry date.

WEIGHTED AVERAGE COMMON SHARES

WEIGHTED AVERAGE COMMON SHARES OUTSTANDING	9 Months Ended
	Sep. 30, 2015
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING	15. WEIGHTED AVERAGE COMMON SHARES OUTSTANDING The following table sets forth the basic and diluted weighted average common shares outstanding as required for earnings per share calculations as disclosed on the consolidated statements of operations: Three months ended September 30 Nine months ended September 30 2015 2014 2015 2014 Weighted average common shares outstanding, basic and diluted 120.2 99.6 111.4 94.1 The following securities have been excluded from the diluted weighted average common shares outstanding because they were anti-dilutive based on the exercise price of the securities: Three months ended September 30 Nine months ended September 30 (Average number outstanding, in millions) 2015 2014 2015 2014 Stock options 6.1 1.2 4.4 0.8 RSUs 2.7 — 2.1 — The following securities have been excluded from the diluted weighted average common shares outstanding because they were anti-dilutive based on having a net loss attributable to common shareholders from continuing operations for the following periods: Three months ended September 30 Nine months ended September 30 (Average number outstanding, in millions) 2015 2014 2015 2014 Stock options 3.4 5.2 4.2 5.8 RSUs — 0.7 — 0.3 Warrants 2.5 2.5 2.5 2.5 Additionally, for the three and nine months ended September 30, 2015, 0.5 million options (three and nine months ended September 30, 2014–0.5 million), which could potentially dilute basic earnings per share in the future, were also excluded from the above tables since they were contingently issuable and the conditions for issuance had not been met by the end of the period.

SPECIAL CHARGES AND RESTRUCTURI

SPECIAL CHARGES AND RESTRUCTURING COSTS	9 Months Ended
	Sep. 30, 2015
SPECIAL CHARGES AND RESTRUCTURING COSTS	16. SPECIAL CHARGES AND RESTRUCTURING COSTS Special charges and restructuring costs of $10.3 were recorded in the three months ended September 30, 2015. The costs consisted of $4.6 of employee-related charges, $0.6 of facility-related charges and $5.1 of integration and acquisition-related charges. The employee-related charges consisted of termination and related costs in connection with headcount reductions of approximately 90 people. Integration and acquisition-related charges consist primarily of professional fees and incidental costs relating to the integration of Aastra and Mavenir. Special charges and restructuring costs of $14.3 were recorded in the three months ended June 30, 2015. The costs consisted of $3.3 of employee-related charges, $0.3 of facility-related charges, $4.0 of integration-related charges and $6.7 of acquisition-related charges. The employee-related charges consisted of termination and related costs in connection with headcount reductions of approximately 35 people. Integration-related charges include professional fees and incidental costs relating to the integration of Aastra and Mavenir. Acquisition-related charges consisted primarily of legal and advisory fees incurred related to the acquisition of Mavenir, as described in note 3. Special charges and restructuring costs of $13.0 were recorded in the three months ended March 31, 2015. The costs consisted of $1.4 of employee-related charges, $5.9 of integration-related charges and $5.7 of acquisition-related charges. The employee-related charges consisted of termination and related costs in connection with headcount reductions of approximately 10 people. Integration-related Special charges and restructuring costs of $31.6 were recorded in the three months ended September 30, 2014. The costs consisted of $24.7 of employee-related charges, $1.0 of facility-related charges and $5.9 of integration-related charges. The employee-related charges consisted of costs related to headcount reductions of approximately 200 people, primarily in Europe. Integration-related charges primarily consist of professional fees and incidental costs relating to the integration of Aastra. Special charges and restructuring costs of $10.9 were recorded in the three months ended June 30, 2014. The costs consisted of $3.9 of employee-related charges, $2.8 of facility-related charges and $4.2 of integration-related charges. The employee-related charges consisted of headcount reductions of approximately 50 people and related costs, primarily in North America and Europe. Facility-related charges consisted primarily of lease termination obligations for facilities, primarily in Europe. Integration-related charges include professional fees and incidental costs relating to the integration of Aastra. Special charges and restructuring costs of $13.2 were recorded in the three months ended March 31, 2014, primarily relating to the acquisition and integration of Aastra. The costs consisted of $2.2 of employee-related charges, $1.1 of facility-related charges, $4.9 of integration-related charges as well as $5.0 of acquisition-related charges. The employee-related charges consisted of headcount reductions of approximately 50 people and related costs, primarily in North America. Facility-related charges consisted primarily of lease termination obligations for facilities, primarily in North America. Integration-related charges include professional fees and incidental costs relating to the integration of Aastra. Acquisition-related charges consisted primarily of legal and advisory fees incurred to close the Aastra acquisition in January 2014. The following table summarizes the change in provision: Description Workforce Facility-Reduction Total Balance of provision as of December 31, 2013 $ 1.7 $ 5.4 $ 7.1 Restructuring liabilities acquired relating to the acquisition of Aastra 2.0 0.3 2.3 Charges 2.2 1.1 3.3 Cash payments (2.3 ) (1.0 ) (3.3 ) Balance of provision as of March 31, 2014 $ 3.6 $ 5.8 $ 9.4 Charges 3.9 2.8 6.7 Cash payments (4.6 ) (0.4 ) (5.0 ) Balance of provision as of June 30, 2014 $ 2.9 $ 8.2 $ 11.1 Charges 24.7 1.0 25.7 Cash payments (7.3 ) (1.4 ) (8.7 ) Balance of provision as of September 30, 2014 $ 20.3 $ 7.8 $ 28.1 Charges 6.2 0.5 6.7 Cash payments (11.0 ) (0.7 ) (11.7 ) Balance of provision as of December 31, 2014 $ 15.5 $ 7.6 $ 23.1 Charges 1.4 — 1.4 Cash payments (6.6 ) (1.3 ) (7.9 ) Balance of provision as of March 31, 2015 $ 10.3 $ 6.3 $ 16.6 Charges 3.3 0.3 3.6 Cash payments (5.2 ) (0.6 ) (5.8 ) Balance of provision as of June 30, 2015 $ 8.4 $ 6.0 $ 14.4 Charges 4.6 0.6 5.2 Cash payments (3.9 ) (1.0 ) (4.9 ) Balance of provision as of September 30, 2015 $ 9.1 $ 5.6 $ 14.7 At September 30, 2015 the current portion of the provision of $12.0 (December 31, 2014–$19.4) is included in accounts payable and accrued liabilities while the long-term portion is included in other non-current liabilities on the consolidated balance sheet.

SEGMENT INFORMATION

SEGMENT INFORMATION	9 Months Ended
	Sep. 30, 2015
SEGMENT INFORMATION	17. SEGMENT INFORMATION During the second quarter of 2015, the Company acquired Mavenir, as disclosed in note 3. As a result, the Company’s chief operating decision maker, the CEO, now evaluates performance and allocates resources based on three key business units, Mobile (consisting of the operating results of Mavenir), and the previously reported business units of Premise and Cloud. Therefore, beginning in the second quarter of 2015, the Company has reported its segmented financial performance based on the segments, Mobile, Premise and Cloud, as described below. The Mobile segment sells and supports software-based telecommunications networking solutions that enable mobile service providers to deliver IP-based voice, video, rich communications and enhanced messaging services to their subscribers. The solutions deliver Rich Communication Services (“RCS”), which enable enhanced mobile communications, such as group text messaging, multi-party The Premise segment sells and supports products and services for premise-based customers. This includes the Company’s premise-based IP and TDM telephony platforms, desktop devices and unified communications and collaboration (“UCC”) and contact centre applications that are deployed on the customer’s premise. Premise-based sales are typically sold as an initial sale of hardware and software, with ongoing recurring revenue from hardware and software maintenance and other managed services that we may also offer. The Cloud segment sells and supports products that are deployed in a cloud environment. The Cloud segment is comprised of a retail offering and a wholesale offering. The retail cloud offering, branded MiCloud, provides hosted cloud and related services directly to the end user. The Company is typically paid a monthly recurring fee for these services, which include UCC applications, voice and data telecommunications and desktop devices. The wholesale offering, branded Powered by Mitel, enables service providers to provide a range of hosted communications offerings to their end customers. The hosted offering includes hosted PBX, voice and video calling, SIP Trunking, voicemail, call center, audio conferencing and video and web collaboration services. The wholesale cloud offering is also sold to large enterprise customers who run their own data centers in private cloud or hybrid cloud networks with management provided by Mitel, or one of Mitel’s channel partners. Revenue in the wholesale cloud offering is billed either as monthly recurring fees or as an upfront sale of hardware and software. The following table presents the results of operations for the Company’s segments: Revenue for the Gross Margin for the Premise Cloud Mobile Total Premise Cloud Mobile Total Product $ 141.9 $ 11.8 $ 24.7 $ 178.4 $ 78.5 $ 6.6 $ 12.1 $ 97.2 Recurring 47.5 28.1 9.7 85.3 27.9 13.3 5.6 46.8 Services 19.3 0.5 10.2 30.0 6.2 0.2 4.1 10.5 208.7 40.4 44.6 293.7 112.6 20.1 21.8 154.5 Purchase accounting adjustments (0.8 ) — (2.2 ) (3.0 ) (0.8 ) — (1.0 ) (1.8 ) $ 207.9 $ 40.4 $ 42.4 $ 290.7 $ 111.8 $ 20.1 $ 20.8 $ 152.7 Revenue for the Gross Margin for the Premise Cloud Mobile Total Premise Cloud Mobile Total Product $ 168.5 $ 8.8 $ — $ 177.3 $ 94.1 $ 4.8 $ — $ 98.9 Recurring 52.0 21.7 — 73.7 26.9 10.4 — 37.3 Services 22.8 0.2 — 23.0 8.2 0.1 — 8.3 243.3 30.7 — 274.0 129.2 15.3 — 144.5 Purchase accounting adjustments (1.6 ) — — (1.6 ) (1.6 ) — — (1.6 ) $ 241.7 $ 30.7 $ — $ 272.4 $ 127.6 $ 15.3 $ — $ 142.9 Revenue for the Gross Margin for the Premise Cloud Mobile Total Premise Cloud Mobile Total Product $ 434.0 $ 33.8 $ 47.8 $ 515.6 $ 242.6 $ 18.3 $ 24.0 $ 284.9 Recurring 143.7 76.7 16.1 236.5 81.7 36.4 8.2 126.3 Services 61.3 1.7 19.8 82.8 20.4 0.9 9.8 31.1 639.0 112.2 83.7 834.9 344.7 55.6 42.0 442.3 Purchase accounting adjustments (2.4 ) — (16.8 ) (19.2 ) (2.4 ) — (7.1 ) (9.5 ) $ 636.6 $ 112.2 $ 66.9 $ 815.7 $ 342.3 $ 55.6 $ 34.9 $ 432.8 Revenue for the Gross Margin for the Premise Cloud Mobile Total Premise Cloud Mobile Total Product $ 513.3 $ 21.7 $ — $ 535.0 $ 291.9 $ 11.7 $ — $ 303.6 Recurring 143.9 61.7 — 205.6 73.7 29.8 — 103.5 Services 68.8 0.6 — 69.4 24.1 0.3 — 24.4 726.0 84.0 — 810.0 389.7 41.8 — 431.5 Purchase accounting adjustments (7.4 ) — — (7.4 ) (7.4 ) — — (7.4 ) $ 718.6 $ 84.0 $ — $ 802.6 $ 382.3 $ 41.8 $ — $ 424.1 Geographic information The Company reports revenues by geographic location as follows: • Americas, consisting of the continents of North America and South America; • EMEA, consisting of the continent of Europe, including Russia, as well as the Middle East and Africa; and • Asia-Pacific, consisting of the continent of Asia and the Pacific region, including Australia and New Zealand. Revenues from external customers are attributed to the following geographic locations based on location of the customers. Three months ended September 30 Nine months ended September 30 2015 2014 2015 2014 Canada $ 7.9 $ 8.6 $ 26.8 $ 28.6 United States 133.2 104.9 350.1 314.9 Rest of Americas 4.5 6.2 11.7 17.1 Americas 145.6 119.7 388.6 360.6 Germany 32.2 35.6 85.7 93.7 U.K. 31.2 28.6 82.4 91.0 Rest of EMEA 71.4 79.6 220.3 230.6 EMEA 134.8 143.8 388.4 415.3 Asia-Pacific 10.3 8.9 38.7 26.7 $ 290.7 $ 272.4 $ 815.7 $ 802.6

SUPPLEMENTARY CASH FLOW INFORMA

SUPPLEMENTARY CASH FLOW INFORMATION	9 Months Ended
	Sep. 30, 2015
SUPPLEMENTARY CASH FLOW INFORMATION	18. SUPPLEMENTARY CASH FLOW INFORMATION Three months ended September 30 Nine months ended September 30 2015 2014 2015 2014 Changes in non-cash operating assets and liabilities: Accounts receivable and sales-type lease receivables $ 35.1 $ 16.8 $ 31.8 $ 11.4 Inventories (2.6 ) (9.0 ) (16.0 ) 3.0 Other current assets (2.0 ) (8.4 ) 5.5 (5.4 ) Other non-current assets 1.2 (0.3 ) 5.0 0.3 Accounts payable and accrued liabilities (21.7 ) 24.3 (52.0 ) 31.0 Deferred revenue (2.9 ) (1.0 ) 14.6 9.0 Other non-current liabilities (2.6 ) (4.9 ) (0.7 ) (7.3 ) Change in pension liability (0.2 ) 1.8 (1.0 ) (1.5 ) $ 4.3 $ 19.3 $ (12.8 ) $ 40.5 Other items: Interest payments $ 8.7 $ 4.9 $ 17.0 $ 14.0 Income tax payments $ 2.3 $ 5.2 $ 7.4 $ 16.1 Property and equipment additions financed through capital lease $ 0.8 $ 1.7 $ 2.6 $ 4.4 Cash and cash equivalents at September 30, 2015 consisted of cash of $82.7 (December 31, 2014—$110.0) and cash equivalents of $0.2 (December 31, 2014—$1.3). In addition, in April 2015, the Company acquired Mavenir for cash and share consideration, as disclosed in note 3.

HEDGING ACTIVITIES

HEDGING ACTIVITIES	9 Months Ended
	Sep. 30, 2015
HEDGING ACTIVITIES	19. HEDGING ACTIVITIES Foreign currency risk The Company operates globally, and therefore incurs expenses in currencies other than its various functional currencies and its U.S. dollar reporting currency. The Company has used, and may use in the future, foreign currency forward contracts to hedge the fair value of certain assets and liabilities as well as to hedge likely future cash flows denominated in a currency other than the functional currency of the entity. The Company does not enter into forward contracts for speculative purposes. Fair value hedging At September 30, 2015, to hedge the fair value of certain assets and liabilities, the Company held forward contracts to buy Canadian dollars, Euros and Swedish kronor and to sell Swiss francs, Australian dollars and U.S. dollars at a fixed rate on a total notional amount of approximately $17.4 U.S. dollars. At September 30, 2015, the Company had a net unrealized loss on fair value adjustments on the outstanding forward contracts used for fair value hedging of $0.1. The Company did not have any forward contracts used for fair value hedging outstanding at December 31, 2014. Cash flow hedging The Company did not have any forward contracts used for cash flow hedging outstanding at September 30, 2015. At December 31, 2014, to hedge probable future cash outflows of Canadian payroll, the Company held forward contracts with durations of up to three months to buy Canadian dollars and sell U.S. dollars on a notional amount of $10.2 U.S. dollars. At December 31, 2014, the Company had a net unrealized loss on fair value adjustments on the outstanding forward contracts used for cash flow hedging of less than $0.1.

OTHER INCOME

OTHER INCOME	9 Months Ended
	Sep. 30, 2015
OTHER INCOME	20. OTHER INCOME Other income for the three and nine months ended September 30, 2015 includes a foreign exchange gain (loss) of ($0.9) and $18.5, respectively (three and nine months ended September 30, 2014 – foreign exchange gain of $2.3 and $3.3). The foreign exchange gain for the nine months ended September 30, 2015 related primarily to intercompany balances and was offset by foreign currency translation adjustments recorded in other comprehensive loss, resulting in no significant net economic effect to the Company.

SIGNIFICANT ACCOUNTING POLICI28

SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2015
Revenue recognition - Mobile business segment	Revenue recognition – Mobile business segment The Mobile segment generates revenues primarily from the sale of networking solutions. A networking solution generally consists of software licenses for a fixed number of subscribers, implementation services and an initial period of post-contract support. Networking solutions may also include standard hardware, such as servers. After the initial implementation of a networking solution, the Company may sell additional software licenses (“Capacity Licenses”), which may include additional hardware to support the Capacity Licenses, and additional periods of post-contract support. Networking solutions The implementation of a networking solution generally requires significant customization and integration into the customer’s network and often takes over six months to complete. The Company accounts for these networking solutions under industry-specific software guidance. Under this guidance, software licenses, implementation services and when applicable, hardware, are considered a single contract deliverable and revenue is recognized in accordance with contract accounting guidance. Where Vendor-Specific Objective Evidence (“VSOE”) of fair value of post-contract support is available, post-contract support is considered a separate element and is recognized ratably over the support period. A portion of the consideration is allocated to post-contract support based on the VSOE of fair value, while the residual amount is allocated to the other contract deliverable. If VSOE of fair value for post-contract support is not available, the entire arrangement is allocated ratably over the period of post-contract support. For the deliverable recognized under contract accounting, the Company uses a percentage-of-completion method based on project hours incurred to date compared to total project hours expected under the contract. Under the percentage-of-completion method, management makes key judgments in areas such as estimated total project hours and total project costs. Changes in job performance, job conditions, and complications relating to the integration into a customer’s network may result in changes to total project hours and total project costs from what was previously estimated. Capacity Licenses Capacity Licenses may be sold separately or bundled together with hardware and/or post-contract support. When bundled, the Capacity Licenses, hardware and post-contract support are generally considered as separate deliverable elements. Revenue is recognized for Capacity Licenses when risks and rewards have been transferred, for hardware typically when the customer has accepted the hardware and for post-contract support over the term of the support period. The consideration is first allocated to the hardware and software elements based on the relative selling price of each. The estimated selling price of the Capacity Licenses is based on management’s best estimate, the selling price of the hardware is based on third party evidence of fair value and the selling price for post-contract support is based on VSOE of fair value. The consideration allocated to the software elements is then further bifurcated with VSOE of fair value determining the amount allocated to post-customer support and the residual being allocated to the Capacity Licenses. Post-contract support Post-contract support is recognized ratably over the support period, as the service is provided. Where post-contract support is bundled with software elements in a transaction, a portion of the consideration is allocated to post-contract support based on the VSOE of fair value of the post-contract support. VSOE of fair value is considered the price a customer would be required to pay if the post-contract support was sold separately and is calculated annually based on the historical experience of stand-alone sales of post-contract support to third parties.
Recently issued accounting pronouncements	Recently issued accounting pronouncements Other than the accounting pronouncements below, there have been no recent accounting pronouncements that are expected to have a significant effect on the consolidated financial statements. Revenue recognition In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09 to provide a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers. The ASU adds a Revenue from Contracts with Customers Going concern assessment and disclosure requirements In May 2014, the FASB issued ASU 2014-15 to provide guidance in relation to management’s assessment of an entity’s ability to continue as a going concern and to provide disclosure requirements in certain circumstances. The amendment becomes effective for the Company in the first quarter of 2016. The Company does not expect the adoption to have a material impact on its consolidated financial statements. Classification of debt issue costs In April 2015, the FASB issued ASU 2015-03 to require debt issue costs, related to a recognized debt liability, be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The Company adopted this amendment in the second quarter of 2015. The adoption resulted in $7.0 of debt issue costs at December 31, 2014 being reclassified from other non-current assets to a direct deduction from the carrying amount of long-term debt. In addition, debt issue costs relating to the April 2015 refinancing and September 2015 amendment have been recorded as a direct deduction from the carrying amount of long-term debt, as disclosed in note 10. Simplifying the accounting for measurement-period adjustments from acquisitions In September 2015, the FASB issued ASU 2015-16 to simplify the accounting for adjustments made to provisional amounts recognized in a business combination. Adjustments that are identified during the measurement period are now required to be recorded in the reporting period in which the adjustment amounts are determined, rather than retrospectively. The Company adopted this amendment in the third quarter of 2015. The adoption did not have a material impact on its consolidated financial statements.

ACQUISITIONS (Tables)

ACQUISITIONS (Tables)	9 Months Ended
	Sep. 30, 2015
Mavenir Systems Inc
Estimated Purchase and Allocation of Purchase Price	The estimated purchase price and allocation of the purchase price is as follows: April 29, 2015 Net assets: Cash and cash equivalents $ 10.1 Accounts receivable (1) 35.1 Inventories (2) 6.5 Deferred tax asset, current 17.7 Other current assets 36.4 Property and equipment 9.0 Intangible assets – customer relationships (3)(6) 99.9 Intangible assets – developed technology (4)(6) 172.9 Goodwill (5)(6) 317.4 Other non-current assets 3.8 Deferred tax asset, non-current 0.8 Accounts payable and accrued liabilities (64.2 ) Deferred revenue, current (16.6 ) Current portion of long-term debt (7) (27.2 ) Deferred revenue, non-current (0.3 ) Deferred tax liability (49.3 ) Other non-current liabilities (6.7 ) Net assets acquired $ 545.3 Consideration given: Cash paid to Mavenir shareholders $ 325.2 Cash paid to Mavenir optionholders (8) 28.1 Value of Mitel common shares issued to Mavenir shareholders (9) 189.2 Value of Mitel options relating to past service issued to Mavenir optionholders (10) 2.8 Total consideration given $ 545.3 (1) Fair value of accounts receivable consists of gross contractual amounts receivable of $36.3, less best estimate of amounts not expected to be collected of $1.2. (2) Fair value of inventory consists of inventory with a historical cost of $8.5 less a historical provision of $2.0. (3) Intangible assets – customer relationships are expected to be amortized over the estimated useful life of the asset of 7 years. (4) Intangible assets – developed technology is expected to be amortized over the estimated useful life of the asset of 7 years. (5) Goodwill is allocated to the Mobile segment. (6) Neither the goodwill nor the intangible assets are expected to be deductible for tax purposes. (7) Long-term debt of Mavenir was repaid at closing. (8) Cash paid to Mavenir optionholders for vested, in-the-money options. (9) Fair value of the 19.7 million Mitel common shares issued to Mavenir shareholders valued at $189.2 based on the closing price of a Mitel common share on the NASDAQ stock market on April 28, 2015. (10) In exchange for all unvested in-the-money Mavenir stock options and all vested and unvested out-of-the-money Mavenir stock options, Mitel issued 2.5 million Mitel stock options with economically similar terms. Using a Black-Scholes valuation with assumptions consistent with grants made in the normal course as described in note 13, the fair value of the 2.5 million stock options totaled $13.0. Based on the vesting period of the original Mavenir stock options, $2.8 was determined to relate to past service and is considered part of the total consideration. The remaining amount will be recorded as stock-based compensation expense by Mitel based on the vesting period.
Business Acquisition ProForma Information	The following unaudited pro-forma financial information presents the Company’s consolidated financial results as if the acquisition had occurred at the beginning of the earliest fiscal year: Three Months Ended September 30 Nine Months Ended September 30 2015 2014 2015 2014 Operations Revenues $ 290.7 $ 305.3 $ 847.7 $ 917.4 Net loss $ (8.1 ) $ (19.7 ) $ (73.5 ) $ (79.9 ) Net loss per share $ (0.07 ) $ (0.17 ) $ (0.61 ) $ (0.68 )
Tiger TMS
Estimated Purchase and Allocation of Purchase Price	The estimated purchase price and allocation of the purchase price is as follows: June 1, 2015 Net assets: Cash and cash equivalents $ 1.3 Accounts receivable 2.8 Inventories 0.3 Other current assets 0.2 Property and equipment 0.1 Intangible assets – customer relationships (1)(3) 3.9 Intangible assets – developed technology (2)(3) 2.3 Goodwill (3) 6.9 Accounts payable and accrued liabilities (0.7 ) Deferred revenue, current (3.6 ) Current portion of long-term debt (4) (3.2 ) Deferred tax liability, non-current (1.3 ) Net assets acquired $ 9.0 Consideration given: Cash paid, June 1, 2015 $ 1.8 Estimated amounts due in the fourth quarter of 2015 (5) 3.0 Estimated fair value of contingent consideration 4.2 Total consideration given $ 9.0 (1) Intangible assets – customer relationships are expected to be amortized over the estimated useful life of the asset of 7 years. (2) Intangible assets – developed technology is expected to be amortized over the estimated useful life of the asset of 6 years. (3) Neither the goodwill nor the intangible assets are expected to be deductible for tax purposes. (4) Long-term debt of Tiger was repaid at closing. (5) Includes a working capital adjustment expected to be finalized in the fourth quarter of 2015.

NET INVESTMENT IN SALES-TYPE 30

NET INVESTMENT IN SALES-TYPE LEASES (Tables)	9 Months Ended
	Sep. 30, 2015
Sales-Type Leases	The following table provides detail on the sales-type leases: September 30, 2015 December 31, 2014 Gross Allowance Net Gross Allowance Net Lease balances included in accounts receivable $ 5.5 $ (1.2 ) $ 4.3 $ 7.4 $ (1.2 ) $ 6.2 Current portion of investment in sales-type leases 14.1 (0.3 ) 13.8 18.6 (0.5 ) 18.1 Non-current portion of investment in sales-type leases 18.5 (0.4 ) 18.1 20.1 (0.4 ) 19.7 Total unsold sales-type leases (recorded as assets, net, on the consolidated balance sheets) 38.1 (1.9 ) 36.2 46.1 (2.1 ) 44.0 Sold rental payments remaining unbilled 50.5 (1.6 ) (1) 48.9 63.9 (2.2 ) (1) 61.7 Total of sales-type leases unsold and sold $ 88.6 $ (3.5 ) $ 85.1 $ 110.0 $ (4.3 ) $ 105.7 (1) Allowance for sold rental payments is recorded as a lease recourse liability and included in other non-current liabilities on the consolidated balance sheets.
Aging Analysis of Financing Receivables	Additional disclosures on the credit quality of the Company’s sold and unsold sales-type leases and lease balances included in accounts receivable are as follows: Aging Analysis as of September 30, 2015 Not past due 1-90 days Greater than Total past due Total sales-type leases Lease balances included in accounts receivable $ 2.9 $ 1.6 $ 1.0 $ 2.6 $ 5.5 Investment in sold and unsold sales-type lease receivables 74.9 7.7 0.5 8.2 83.1 Total gross sales-type leases 77.8 9.3 1.5 10.8 88.6 Allowance (1.5 ) (0.8 ) (1.2 ) (2.0 ) (3.5 ) Total net sales-type leases $ 76.3 $ 8.5 $ 0.3 $ 8.8 $ 85.1 Aging Analysis as of December 31, 2014 Not past due 1-90 days Greater than Total past due Total sales-type leases Lease balances included in accounts receivable $ 4.3 $ 1.8 $ 1.3 $ 3.1 $ 7.4 Investment in sold and unsold sales-type lease receivables 92.3 9.5 0.8 10.3 102.6 Total gross sales-type leases 96.6 11.3 2.1 13.4 110.0 Allowance (2.0 ) (1.0 ) (1.3 ) (2.3 ) (4.3 ) Total net sales-type leases $ 94.6 $ 10.3 $ 0.8 $ 11.1 $ 105.7
Activity of Allowance for Credit Losses on Sales-Type Leases	The following table shows the activity of the allowance for credit losses on sales-type leases: Allowance for credit losses on sales-type leases, December 31, 2013 $ (5.0 ) Additions due to the acquisition of Aastra (1.1 ) Write-offs 2.2 Provision (0.4 ) Allowance for credit losses on sales-type leases, December 31, 2014 $ (4.3 ) Write-offs 0.3 Provision (0.1 ) Allowance for credit losses on sales-type leases, March 31, 2015 $ (4.1 ) Write-offs 0.4 Allowance for credit losses on sales-type leases, June 30, 2015 $ (3.7 ) Write-offs 0.2 Allowance for credit losses on sales-type leases, September 30, 2015 $ (3.5 )
Gross Sales-Type Leases Individually and Collectively Evaluated for Impairment	The amount of gross sales-type leases individually and collectively evaluated for impairment is as follows: September 30, 2015 December 31, 2014 Individually evaluated for impairment Sales-type leases individually evaluated for impairment, gross $ 3.1 $ 4.4 Allowance against sales-type leases individually evaluated for impairment (1.7 ) (2.1 ) Sales-type leases individually evaluated for impairment, net $ 1.4 $ 2.3 September 30, 2015 December 31, 2014 Collectively evaluated for impairment Sales-type leases collectively evaluated for impairment, gross $ 85.5 $ 105.6 Allowance against sales-type leases collectively evaluated for impairment (1.8 ) (2.2 ) Sales-type leases collectively evaluated for impairment, net $ 83.7 $ 103.4

INVENTORIES (Tables)

INVENTORIES (Tables)	9 Months Ended
	Sep. 30, 2015
Inventories	September 30, 2015 December 31, 2014 Raw materials and work in process $ 5.9 $ 4.2 Finished goods (1) 104.5 83.0 Service inventory 7.2 6.5 Less: provision for excess and obsolete inventory (1) (6.7 ) (5.4 ) $ 110.9 $ 88.3 (1) At September 30, 2015, finished goods are recorded net of approximately $17.1 of historical inventory provision remaining primarily from the acquisition of Aastra, as discussed in note 3 to the Annual Financial Statements (December 31, 2014 - $23.6). This amount will decrease as the related inventory acquired is sold or written off.

OTHER CURRENT ASSETS (Tables)

OTHER CURRENT ASSETS (Tables)	9 Months Ended
	Sep. 30, 2015
Other Current Assets	September 30, 2015 December 31, 2014 Prepaid expenses and deferred charges $ 32.3 $ 22.5 Unbilled receivables 25.0 3.5 Due from related parties (note 9) 0.6 0.4 Income tax receivable 10.0 10.4 Other receivables 14.0 16.1 Restricted cash 1.0 0.3 $ 82.9 $ 53.2

IDENTIFIABLE INTANGIBLE ASSETS

IDENTIFIABLE INTANGIBLE ASSETS (Tables)	9 Months Ended
	Sep. 30, 2015
Identifiable Intangible Assets	September 30, 2015 December 31, 2014 Cost Accumulated amortization Net Cost Accumulated amortization Net Developed technology $ 421.6 $ (139.4 ) $ 282.2 $ 246.4 $ (101.0 ) $ 145.4 Customer relationships 217.0 (109.3 ) 107.7 113.2 (94.1 ) 19.1 Patents, trademarks and other 31.7 (22.3 ) 9.4 30.5 (19.2 ) 11.3 $ 670.3 $ (271.0 ) $ 399.3 $ 390.1 $ (214.3 ) $ 175.8

ACCOUNTS PAYABLE AND ACCRUED 34

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)	9 Months Ended
	Sep. 30, 2015
Accounts Payable and Accrued Liabilities	September 30, 2015 December 31, 2014 Trade payables $ 63.4 $ 54.4 Employee-related payables 51.6 48.2 Accrued liabilities 72.3 58.6 Restructuring, warranty and other provisions 27.2 31.8 Due to related parties (note 9) 0.6 0.6 Other payables 36.0 21.4 $ 251.1 $ 215.0

LONG-TERM DEBT (Tables)

LONG-TERM DEBT (Tables)	9 Months Ended
	Sep. 30, 2015
Maximum Leverage Ratio	The maximum Leverage Ratio, as amended in September 2015, applies to the Company for the period ending September 30, 2015 and for all fiscal quarters thereafter until maturity, and is as follows: Fiscal Quarters Ending Maximum Consolidated September 30, 2015 through December 31, 2015 5.25:1.00 March 31, 2016 4.75:1.00 June 30, 2016 through September 30, 2016 4.25:1.00 December 31, 2016 through September 30, 2017 3.25:1.00 December 31, 2017 through September 30, 2018 3.00:1.00 December 31, 2018 through September 30, 2019 2.75:1.00 December 31, 2019 and thereafter 2.50:1.00
Schedule of Maximum Leverage Ratio and Actual Leverage Ratio	The Company’s maximum Leverage Ratio and actual Leverage Ratio is as follows: Period Ending Maximum Actual September 30, 2015 5.25 3.87

PENSION PLANS (Tables)

PENSION PLANS (Tables)	9 Months Ended
	Sep. 30, 2015
Net Periodic Benefit Cost	The Company’s net periodic benefit cost was as follows: Three months ended September 30 Nine months ended September 30 2015 2014 2015 2014 Defined contribution plans Contribution expense $ 2.7 $ 3.5 $ 8.7 $ 9.5 Defined benefit plans Current service cost 0.7 0.5 2.3 1.5 Interest cost 3.0 3.5 8.8 10.1 Expected return on plan assets (2.8 ) (3.4 ) (8.2 ) (10.0 ) Recognized actuarial loss (1) 0.6 0.2 1.7 0.6 Total periodic benefit cost, net $ 4.2 $ 4.3 $ 13.3 $ 11.7 (1) Recognized actuarial loss represents the amortization of unrecognized actuarial loss out of the accumulated other comprehensive loss into selling, general and administrative expense.

SHARE CAPITAL (Tables)

SHARE CAPITAL (Tables)	9 Months Ended
	Sep. 30, 2015
Stock Option Activity	Following is a summary of the Company’s stock option activity (in millions, except per option amounts): 2015 2014 Number of Weighted Average Number of Weighted Average Outstanding options: Balance, beginning of first quarter 6.8 $ 6.12 7.2 $ 5.10 Granted 1.0 $ 9.70 0.3 $ 8.79 Exercised (0.1 ) $ 7.00 (0.3 ) $ 4.90 Forfeited (0.2 ) $ 5.56 — (1) $ 4.57 Expired — (1) $ 10.24 — (1) $ 7.61 Balance, end of first quarter 7.5 $ 6.58 7.2 $ 5.28 Granted in normal course 0.2 $ 8.96 0.8 $ 10.14 Granted in connection with the acquisition of Mavenir (note 3) 2.5 $ 7.50 — $ — Exercised (0.2 ) $ 4.82 (0.5 ) $ 4.96 Forfeited (0.1 ) $ 7.71 — (1) $ 4.76 Expired — (1) $ 7.89 (0.1 ) $ 4.91 Balance, end of second quarter 9.9 $ 6.86 7.4 $ 5.83 Granted in normal course 0.4 $ 8.31 0.2 $ 9.96 Exercised (0.1 ) $ 4.21 (0.5 ) $ 4.24 Forfeited (0.2 ) $ 9.40 (0.1 ) $ 5.66 Expired (0.1 ) $ 7.83 — (1) $ 4.46 Balance, end of third quarter 9.9 $ 6.89 7.0 $ 6.03 Number of options exercisable 5.1 $ 6.19 3.6 $ 5.81 (1) Number of options is less than 0.1 for the period.
Black-Scholes Option-Pricing Model used to Determine Fair Value of Stock Option Grants	The Company used the Black-Scholes option-pricing model to determine the fair value of the stock option grants during the period. The assumptions used are summarized as follows: Three Months Ended September 30, 2015 June 30, 2015 March 31, 2015 September June March Number of options granted in normal course 0.4 0.2 1.0 0.2 0.8 0.3 Risk-free interest rate 1.5 % 1.3 % 1.6 % 1.7 % 1.6 % 1.5 % Dividends 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % Expected volatility 52.0 % 52.0 % 52.0 % 55.0 % 55.0 % 55.0 % Annual forfeiture rate 10.0 % 10.0 % 10.0 % 10.0 % 10.0 % 10.0 % Expected life of the options 5 years 5 years 5 years 5 years 5 years 5 years Weighted average fair value per option $ 3.66 $ 3.93 $ 4.49 $ 4.63 $ 4.70 $ 4.06

WARRANTS (Tables)

WARRANTS (Tables)	9 Months Ended
	Sep. 30, 2015
Carrying Value of Warrants Outstanding	The following table outlines the carrying value of warrants outstanding: September 30, 2015 December 31, 2014 Warrants issued in connection with government funding (1) $ 39.1 $ 39.1 (1) At September 30, 2015, there were 2.48 million warrants outstanding that were issued in connection with government funding (December 31, 2014—2.48 million). The warrants have an exercise price of nil, are exercisable at any time at the option of the holder and have no expiry date.

WEIGHTED AVERAGE COMMON SHARE39

WEIGHTED AVERAGE COMMON SHARES OUTSTANDING (Tables)	9 Months Ended
	Sep. 30, 2015
Basic and Diluted Weighted Average Common Shares Outstanding for Earnings Per Share Calculations	The following table sets forth the basic and diluted weighted average common shares outstanding as required for earnings per share calculations as disclosed on the consolidated statements of operations: Three months ended September 30 Nine months ended September 30 2015 2014 2015 2014 Weighted average common shares outstanding, basic and diluted 120.2 99.6 111.4 94.1
Exercise Price of Securities
Securities Excluded from Diluted Weighted Average Common Shares Outstanding	The following securities have been excluded from the diluted weighted average common shares outstanding because they were anti-dilutive based on the exercise price of the securities: Three months ended September 30 Nine months ended September 30 (Average number outstanding, in millions) 2015 2014 2015 2014 Stock options 6.1 1.2 4.4 0.8 RSUs 2.7 — 2.1 —
Net loss attributable to common shareholders from continuing operations
Securities Excluded from Diluted Weighted Average Common Shares Outstanding	The following securities have been excluded from the diluted weighted average common shares outstanding because they were anti-dilutive based on having a net loss attributable to common shareholders from continuing operations for the following periods: Three months ended September 30 Nine months ended September 30 (Average number outstanding, in millions) 2015 2014 2015 2014 Stock options 3.4 5.2 4.2 5.8 RSUs — 0.7 — 0.3 Warrants 2.5 2.5 2.5 2.5

SPECIAL CHARGES AND RESTRUCTU40

SPECIAL CHARGES AND RESTRUCTURING COSTS (Tables)	9 Months Ended
	Sep. 30, 2015
Summary of Change in Provision for Special Charges and Restructuring Costs	The following table summarizes the change in provision: Description Workforce Facility-Reduction Total Balance of provision as of December 31, 2013 $ 1.7 $ 5.4 $ 7.1 Restructuring liabilities acquired relating to the acquisition of Aastra 2.0 0.3 2.3 Charges 2.2 1.1 3.3 Cash payments (2.3 ) (1.0 ) (3.3 ) Balance of provision as of March 31, 2014 $ 3.6 $ 5.8 $ 9.4 Charges 3.9 2.8 6.7 Cash payments (4.6 ) (0.4 ) (5.0 ) Balance of provision as of June 30, 2014 $ 2.9 $ 8.2 $ 11.1 Charges 24.7 1.0 25.7 Cash payments (7.3 ) (1.4 ) (8.7 ) Balance of provision as of September 30, 2014 $ 20.3 $ 7.8 $ 28.1 Charges 6.2 0.5 6.7 Cash payments (11.0 ) (0.7 ) (11.7 ) Balance of provision as of December 31, 2014 $ 15.5 $ 7.6 $ 23.1 Charges 1.4 — 1.4 Cash payments (6.6 ) (1.3 ) (7.9 ) Balance of provision as of March 31, 2015 $ 10.3 $ 6.3 $ 16.6 Charges 3.3 0.3 3.6 Cash payments (5.2 ) (0.6 ) (5.8 ) Balance of provision as of June 30, 2015 $ 8.4 $ 6.0 $ 14.4 Charges 4.6 0.6 5.2 Cash payments (3.9 ) (1.0 ) (4.9 ) Balance of provision as of September 30, 2015 $ 9.1 $ 5.6 $ 14.7

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	9 Months Ended
	Sep. 30, 2015
Results of Operations for Company's Segments	The following table presents the results of operations for the Company’s segments: Revenue for the Gross Margin for the Premise Cloud Mobile Total Premise Cloud Mobile Total Product $ 141.9 $ 11.8 $ 24.7 $ 178.4 $ 78.5 $ 6.6 $ 12.1 $ 97.2 Recurring 47.5 28.1 9.7 85.3 27.9 13.3 5.6 46.8 Services 19.3 0.5 10.2 30.0 6.2 0.2 4.1 10.5 208.7 40.4 44.6 293.7 112.6 20.1 21.8 154.5 Purchase accounting adjustments (0.8 ) — (2.2 ) (3.0 ) (0.8 ) — (1.0 ) (1.8 ) $ 207.9 $ 40.4 $ 42.4 $ 290.7 $ 111.8 $ 20.1 $ 20.8 $ 152.7 Revenue for the Gross Margin for the Premise Cloud Mobile Total Premise Cloud Mobile Total Product $ 168.5 $ 8.8 $ — $ 177.3 $ 94.1 $ 4.8 $ — $ 98.9 Recurring 52.0 21.7 — 73.7 26.9 10.4 — 37.3 Services 22.8 0.2 — 23.0 8.2 0.1 — 8.3 243.3 30.7 — 274.0 129.2 15.3 — 144.5 Purchase accounting adjustments (1.6 ) — — (1.6 ) (1.6 ) — — (1.6 ) $ 241.7 $ 30.7 $ — $ 272.4 $ 127.6 $ 15.3 $ — $ 142.9 Revenue for the Gross Margin for the Premise Cloud Mobile Total Premise Cloud Mobile Total Product $ 434.0 $ 33.8 $ 47.8 $ 515.6 $ 242.6 $ 18.3 $ 24.0 $ 284.9 Recurring 143.7 76.7 16.1 236.5 81.7 36.4 8.2 126.3 Services 61.3 1.7 19.8 82.8 20.4 0.9 9.8 31.1 639.0 112.2 83.7 834.9 344.7 55.6 42.0 442.3 Purchase accounting adjustments (2.4 ) — (16.8 ) (19.2 ) (2.4 ) — (7.1 ) (9.5 ) $ 636.6 $ 112.2 $ 66.9 $ 815.7 $ 342.3 $ 55.6 $ 34.9 $ 432.8 Revenue for the Gross Margin for the Premise Cloud Mobile Total Premise Cloud Mobile Total Product $ 513.3 $ 21.7 $ — $ 535.0 $ 291.9 $ 11.7 $ — $ 303.6 Recurring 143.9 61.7 — 205.6 73.7 29.8 — 103.5 Services 68.8 0.6 — 69.4 24.1 0.3 — 24.4 726.0 84.0 — 810.0 389.7 41.8 — 431.5 Purchase accounting adjustments (7.4 ) — — (7.4 ) (7.4 ) — — (7.4 ) $ 718.6 $ 84.0 $ — $ 802.6 $ 382.3 $ 41.8 $ — $ 424.1
Revenues from External Customers	Revenues from external customers are attributed to the following geographic locations based on location of the customers. Three months ended September 30 Nine months ended September 30 2015 2014 2015 2014 Canada $ 7.9 $ 8.6 $ 26.8 $ 28.6 United States 133.2 104.9 350.1 314.9 Rest of Americas 4.5 6.2 11.7 17.1 Americas 145.6 119.7 388.6 360.6 Germany 32.2 35.6 85.7 93.7 U.K. 31.2 28.6 82.4 91.0 Rest of EMEA 71.4 79.6 220.3 230.6 EMEA 134.8 143.8 388.4 415.3 Asia-Pacific 10.3 8.9 38.7 26.7 $ 290.7 $ 272.4 $ 815.7 $ 802.6

SUPPLEMENTARY CASH FLOW INFOR42

SUPPLEMENTARY CASH FLOW INFORMATION (Tables)	9 Months Ended
	Sep. 30, 2015
Supplementary Cash Flow Information	Three months ended September 30 Nine months ended September 30 2015 2014 2015 2014 Changes in non-cash operating assets and liabilities: Accounts receivable and sales-type lease receivables $ 35.1 $ 16.8 $ 31.8 $ 11.4 Inventories (2.6 ) (9.0 ) (16.0 ) 3.0 Other current assets (2.0 ) (8.4 ) 5.5 (5.4 ) Other non-current assets 1.2 (0.3 ) 5.0 0.3 Accounts payable and accrued liabilities (21.7 ) 24.3 (52.0 ) 31.0 Deferred revenue (2.9 ) (1.0 ) 14.6 9.0 Other non-current liabilities (2.6 ) (4.9 ) (0.7 ) (7.3 ) Change in pension liability (0.2 ) 1.8 (1.0 ) (1.5 ) $ 4.3 $ 19.3 $ (12.8 ) $ 40.5 Other items: Interest payments $ 8.7 $ 4.9 $ 17.0 $ 14.0 Income tax payments $ 2.3 $ 5.2 $ 7.4 $ 16.1 Property and equipment additions financed through capital lease $ 0.8 $ 1.7 $ 2.6 $ 4.4

Significant Accounting Polici43

Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Significant Accounting Policies [Line Items]
Debt issuance cost	$ 0.5	$ 0.7	$ 9.6	$ 16.2	$ 7

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) shares in Millions, CAD in Millions, $ in Millions		Jun. 01, 2015USD ($)	Apr. 29, 2015USD ($)shares	Mar. 04, 2014USD ($)	Jan. 31, 2014USD ($)shares	Sep. 30, 2015USD ($)	Jun. 30, 2015shares	Sep. 30, 2014USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2013CAD
Business Acquisition [Line Items]
Granted in connection with the acquisition of Mavenir | shares							2.5
Revenues						$ 290.7		$ 272.4	$ 815.7	$ 802.6
Net income (loss)						(8.1)		(5.3)	(14.4)	(18.1)
Mavenir Systems Inc
Business Acquisition [Line Items]
Mitel common shares/options issued | shares			19.7
Granted in connection with the acquisition of Mavenir | shares			2.5
Revenues						42.4			66.9
Reduction in revenue as a result of valuation of in-progress contracts						0.7			14.1
Reduction in revenue as a result of valuation of deferred revenue liabilities acquired						1.5			2.7
Net income (loss)						11.9			19.8
Decrease to cost of sales						1.2		0	9.7	8.5
Decrease to amortization of acquired intangible assets						10.9			16.2
Pro-forma amortization of intangible assets, per year									31.6
Reduction in proforma revenue as a result of valuation of in-progress contracts and deferred revenue						0			1.4
Total reduction in revenue as a result of valuation of in-progress contracts and deferred revenue						$ 2.1		$ 1.2	$ 18.1	$ 17.2
Total value of consideration			$ 545.3
Value of Mitel common shares issued	[1]		189.2
Mavenir Systems Inc | Common Stock
Business Acquisition [Line Items]
Cash payment to acquire business			$ 325.2
Oaisys
Business Acquisition [Line Items]
Cash payment to acquire business				$ 7.9
Equity ownership interest, percentage				100.00%
Aastra Technologies Limited
Business Acquisition [Line Items]
Cash payment to acquire business					$ 80
Mitel common shares/options issued | shares					44.2
Approximate revenue of acquired entity | CAD												CAD 600
Total value of consideration					$ 471.3
Value of Mitel common shares issued					$ 391.3
Equity ownership interest, percentage					100.00%
Aastra Technologies Limited | Europe | Geographic Concentration Risk | Revenue
Business Acquisition [Line Items]
Concentration of risk												75.00%
Tiger TMS
Business Acquisition [Line Items]
Cash payment to acquire business		$ 1.8
Approximate revenue of acquired entity											$ 10
Total value of consideration		9
Amounts due	[2]	3
Estimated fair value of contingent consideration		4.2
Repayment of assumed long-term debt		$ 3.2
[1]	Fair value of the 19.7 million Mitel common shares issued to Mavenir shareholders valued at $189.2 based on the closing price of a Mitel common share on the NASDAQ stock market on April 28, 2015.
[2]	Includes a working capital adjustment expected to be finalized in the fourth quarter of 2015.

Estimated Purchase and Allocati

Estimated Purchase and Allocation of Purchase Price (Detail) - USD ($) $ in Millions		Jun. 01, 2015	Apr. 29, 2015	Jun. 30, 2015	Sep. 30, 2015	Dec. 31, 2014
Net assets:
Goodwill					$ 664.6	$ 340.3
Consideration given:
Value of Mitel options relating to past service issued to Mavenir optionholders				$ 2.8
Mavenir Systems Inc
Net assets:
Cash and cash equivalents			$ 10.1
Accounts receivable	[1]		35.1
Inventories	[2]		6.5
Deferred tax asset, current			17.7
Other current assets			36.4
Property and equipment			9
Goodwill	[3],[4]		317.4
Other non-current assets			3.8
Deferred tax asset, non-current			0.8
Accounts payable and accrued liabilities			(64.2)
Deferred revenue, current			(16.6)
Current portion of long-term debt	[5]		(27.2)
Deferred revenue, non-current			(0.3)
Deferred tax liability			(49.3)
Other non-current liabilities			(6.7)
Net assets acquired			545.3
Consideration given:
Total consideration given			545.3
Business acquisition, value of shares issued	[6]		189.2
Value of Mitel options relating to past service issued to Mavenir optionholders	[7]		2.8
Mavenir Systems Inc | Stock Options
Consideration given:
Cash paid	[8]		28.1
Mavenir Systems Inc | Common Stock
Consideration given:
Cash paid			325.2
Mavenir Systems Inc | Customer relationships
Net assets:
Intangible assets	[4],[9]		99.9
Mavenir Systems Inc | Developed technology
Net assets:
Intangible assets	[4],[10]		$ 172.9
Tiger TMS
Net assets:
Cash and cash equivalents		$ 1.3
Accounts receivable		2.8
Inventories		0.3
Other current assets		0.2
Property and equipment		0.1
Goodwill	[4]	6.9
Accounts payable and accrued liabilities		(0.7)
Deferred revenue, current		(3.6)
Current portion of long-term debt	[11]	(3.2)
Deferred tax liability		(1.3)
Net assets acquired		9
Consideration given:
Cash paid		1.8
Estimated amounts due in the fourth quarter of 2015	[12]	3
Estimated fair value of contingent consideration		4.2
Total consideration given		9
Tiger TMS | Customer relationships
Net assets:
Intangible assets	[4],[9]	3.9
Tiger TMS | Developed technology
Net assets:
Intangible assets	[4],[13]	$ 2.3
[1]	Fair value of accounts receivable consists of gross contractual amounts receivable of $36.3, less best estimate of amounts not expected to be collected of $1.2.
[2]	Fair value of inventory consists of inventory with a historical cost of $8.5 less a historical provision of $2.0.
[3]	Goodwill is allocated to the Mobile segment.
[4]	Neither the goodwill nor the intangible assets are expected to be deductible for tax purposes.
[5]	Long-term debt of Mavenir was repaid at closing.
[6]	Fair value of the 19.7 million Mitel common shares issued to Mavenir shareholders valued at $189.2 based on the closing price of a Mitel common share on the NASDAQ stock market on April 28, 2015.
[7]	In exchange for all unvested in-the-money Mavenir stock options and all vested and unvested out-of-the-money Mavenir stock options, Mitel issued 2.5 million Mitel stock options with economically similar terms. Using a Black-Scholes valuation with assumptions consistent with grants made in the normal course as described in note 13, the fair value of the 2.5 million stock options totaled $13.0. Based on the vesting period of the original Mavenir stock options, $2.8 was determined to relate to past service and is considered part of the total consideration. The remaining amount will be recorded as stock-based compensation expense by Mitel based on the vesting period.
[8]	Cash paid to Mavenir optionholders for vested, in-the-money options.
[9]	Intangible assets - customer relationships are expected to be amortized over the estimated useful life of the asset of 7 years.
[10]	Intangible assets - developed technology is expected to be amortized over the estimated useful life of the asset of 7 years.
[11]	Long-term debt of Tiger was repaid at closing.
[12]	Includes a working capital adjustment expected to be finalized in the fourth quarter of 2015.
[13]	Intangible assets - developed technology is expected to be amortized over the estimated useful life of the asset of 6 years.

Estimated Purchase and Alloca46

Estimated Purchase and Allocation of Purchase Price (Parenthetical) (Detail) - USD ($) shares in Millions, $ in Millions		Jun. 01, 2015	Apr. 29, 2015	Jun. 30, 2015
Business Acquisition [Line Items]
Granted in connection with the acquisition of Mavenir				2.5
Value of Mitel options relating to past service issued to Mavenir optionholders				$ 2.8
Mavenir Systems Inc
Business Acquisition [Line Items]
Gross contractual amounts receivable			$ 36.3
Accounts receivable, best estimate of amounts not expected to be collected			1.2
Gross inventory			8.5
Provision for inventory			$ 2
Business acquisition, value of shares issued			19.7
Common shares issued, value	[1]		$ 189.2
Granted in connection with the acquisition of Mavenir			2.5
Fair value of stock options granted in connection with the acquisition of Mavenir			$ 13
Value of Mitel options relating to past service issued to Mavenir optionholders	[2]		$ 2.8
Mavenir Systems Inc | Customer relationships
Business Acquisition [Line Items]
Expected useful life of Intangible assets			7 years
Mavenir Systems Inc | Developed technology
Business Acquisition [Line Items]
Expected useful life of Intangible assets			7 years
Tiger TMS | Customer relationships
Business Acquisition [Line Items]
Expected useful life of Intangible assets		7 years
Tiger TMS | Developed technology
Business Acquisition [Line Items]
Expected useful life of Intangible assets		6 years
[1]	Fair value of the 19.7 million Mitel common shares issued to Mavenir shareholders valued at $189.2 based on the closing price of a Mitel common share on the NASDAQ stock market on April 28, 2015.
[2]	In exchange for all unvested in-the-money Mavenir stock options and all vested and unvested out-of-the-money Mavenir stock options, Mitel issued 2.5 million Mitel stock options with economically similar terms. Using a Black-Scholes valuation with assumptions consistent with grants made in the normal course as described in note 13, the fair value of the 2.5 million stock options totaled $13.0. Based on the vesting period of the original Mavenir stock options, $2.8 was determined to relate to past service and is considered part of the total consideration. The remaining amount will be recorded as stock-based compensation expense by Mitel based on the vesting period.

Pro-Forma Financial Information

Pro-Forma Financial Information (Detail) - Mavenir Systems Inc - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Business Acquisition [Line Items]
Revenues	$ 290.7	$ 305.3	$ 847.7	$ 917.4
Net loss	$ (8.1)	$ (19.7)	$ (73.5)	$ (79.9)
Net loss per share	$ (0.07)	$ (0.17)	$ (0.61)	$ (0.68)

Sales-Type Leases (Detail)

Sales-Type Leases (Detail) - USD ($)		Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Sales Type Lease Receivables [Line Items]
Lease balances included in accounts receivable, gross		$ 5,500,000			$ 7,400,000
Current portion of investment in sales-type leases, gross		14,100,000			18,600,000
Non-current portion of investment in sales-type leases, gross		18,500,000			20,100,000
Total unsold sales-type leases (recorded as assets, net, on the consolidated balance sheets), gross		38,100,000			46,100,000
Sold rental payments remaining unbilled, gross		50,500,000			63,900,000
Total of sales-type leases unsold and sold, gross		88,600,000			110,000,000
Lease balances included in accounts receivable, allowance		(1,200,000)			(1,200,000)
Current portion of investment in sales-type leases, allowance		(300,000)			(500,000)
Non-current portion of investment in sales-type leases, allowance		(400,000)			(400,000)
Total unsold sales-type leases (recorded as assets, net, on the consolidated balance sheets), allowance		(1,900,000)			(2,100,000)
Sold rental payments remaining unbilled, allowance	[1]	(1,600,000)			(2,200,000)
Total of sales-type leases unsold and sold, allowance		(3,500,000)	$ (3,700,000)	$ (4,100,000)	(4,300,000)	$ (5,000,000)
Lease balances included in accounts receivable, net		4,300,000			6,200,000
Current portion of investment in sales-type leases, net		13,800,000			18,100,000
Non-current portion of investment in sales-type leases, net		18,100,000			19,700,000
Total unsold sales-type leases (recorded as assets, net, on the consolidated balance sheets), net		36,200,000			44,000,000
Sold rental payments remaining unbilled, net		48,900,000			61,700,000
Total of sales-type leases unsold and sold, net		$ 85,100,000			$ 105,700,000
[1]	Allowance for sold rental payments is recorded as a lease recourse liability and included in other non-current liabilities on the consolidated balance sheets.

Net Investment in Sales-Type 49

Net Investment in Sales-Type Leases - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Sales Type Lease Receivables [Line Items]
Sale of rental payments	$ 4.8	$ 4	$ 11.6	$ 13.2
Gains on sale of rental payments	$ 0.8	$ 0.7	$ 2	$ 2.3

Aging Analysis of Financing Rec

Aging Analysis of Financing Receivables (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Not past due	$ 76.3			$ 94.6
1-90 days past due	8.8			11.1
Total of sales-type leases unsold and sold, net	85.1			105.7
Sales-type lease receivables not past due, allowance	(1.5)			(2)
Sales-type lease receivables 1-90 days past due, allowance	(0.8)			(1)
Sales-type lease receivables greater than 90 days past due, allowance	(1.2)			(1.3)
Sales-type lease receivables total past due, allowance	(2)			(2.3)
Total of sales-type leases unsold and sold, allowance	(3.5)	$ (3.7)	$ (4.1)	(4.3)	$ (5)
Financing Receivables One to Ninety Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
1-90 days past due	8.5			10.3
Financing Receivable, 90 Days and Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
1-90 days past due	0.3			0.8
Accounts Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Not past due	2.9			4.3
1-90 days past due	2.6			3.1
Total of sales-type leases unsold and sold, net	5.5			7.4
Accounts Receivable | Financing Receivables One to Ninety Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
1-90 days past due	1.6			1.8
Accounts Receivable | Financing Receivable, 90 Days and Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
1-90 days past due	1			1.3
Investment in sold and unsold sales-type lease receivables
Financing Receivable, Recorded Investment, Past Due [Line Items]
Not past due	74.9			92.3
1-90 days past due	8.2			10.3
Total of sales-type leases unsold and sold, net	83.1			102.6
Investment in sold and unsold sales-type lease receivables | Financing Receivables One to Ninety Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
1-90 days past due	7.7			9.5
Investment in sold and unsold sales-type lease receivables | Financing Receivable, 90 Days and Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
1-90 days past due	0.5			0.8
Total gross sales-type leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Not past due	77.8			96.6
1-90 days past due	10.8			13.4
Total of sales-type leases unsold and sold, net	88.6			110
Total gross sales-type leases | Financing Receivables One to Ninety Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
1-90 days past due	9.3			11.3
Total gross sales-type leases | Financing Receivable, 90 Days and Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
1-90 days past due	$ 1.5			$ 2.1

Activity of Allowance for Credi

Activity of Allowance for Credit Losses on Sales-Type Leases (Detail) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses on sales-type leases, beginning balance	$ (3.7)	$ (4.1)	$ (4.3)	$ (5)
Additions due to the acquisition of Aastra				(1.1)
Write-offs	0.2	0.4	0.3	2.2
Provision			(0.1)	(0.4)
Allowance for credit losses on sales-type leases, ending balance	$ (3.5)	$ (3.7)	$ (4.1)	$ (4.3)

Amount of Gross Sales-Type Leas

Amount of Gross Sales-Type Leases Individually and Collectively Evaluated for Impairment (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Sales-type leases individually evaluated for impairment, gross	$ 3.1	$ 4.4
Allowance against sales-type leases individually evaluated for impairment	(1.7)	(2.1)
Sales-type leases individually evaluated for impairment, net	1.4	2.3
Sales-type leases collectively evaluated for impairment, gross	85.5	105.6
Allowance against sales-type leases collectively evaluated for impairment	(1.8)	(2.2)
Sales-type leases collectively evaluated for impairment, net	$ 83.7	$ 103.4

Inventories (Detail)

Inventories (Detail) - USD ($) $ in Millions		Sep. 30, 2015	Dec. 31, 2014
Inventory [Line Items]
Raw materials and work in process		$ 5.9	$ 4.2
Finished goods	[1]	104.5	83
Service inventory		7.2	6.5
Less: provision for excess and obsolete inventory	[1]	(6.7)	(5.4)
Inventories, net		$ 110.9	$ 88.3
[1]	At September 30, 2015, finished goods are recorded net of approximately $17.1 of historical inventory provision remaining primarily from the acquisition of Aastra, as discussed in note 3 to the Annual Financial Statements (December 31, 2014 - $23.6). This amount will decrease as the related inventory acquired is sold or written off.

Inventories (Parenthetical) (De

Inventories (Parenthetical) (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Aastra Technologies Limited
Inventory [Line Items]
Provision for inventory	$ 17.1	$ 23.6

Other Current Assets (Detail)

Other Current Assets (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Other Assets, Current [Line Items]
Prepaid expenses and deferred charges	$ 32.3	$ 22.5
Unbilled receivables	25	3.5
Due from related parties (note 9)	0.6	0.4
Income tax receivable	10	10.4
Other receivables	14	16.1
Restricted cash	1	0.3
Other current assets	$ 82.9	$ 53.2

Identifiable Intangible Asset56

Identifiable Intangible Assets (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Cost	$ 670.3	$ 390.1
Accumulated amortization	(271)	(214.3)
Net	399.3	175.8
Developed technology
Finite-Lived Intangible Assets [Line Items]
Cost	421.6	246.4
Accumulated amortization	(139.4)	(101)
Net	282.2	145.4
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	217	113.2
Accumulated amortization	(109.3)	(94.1)
Net	107.7	19.1
Patent, trademarks and other
Finite-Lived Intangible Assets [Line Items]
Cost	31.7	30.5
Accumulated amortization	(22.3)	(19.2)
Net	$ 9.4	$ 11.3

Accounts Payable and Accrued 57

Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Accounts Payable and Accrued Liabilities [Line Items]
Trade payables	$ 63.4	$ 54.4
Employee-related payables	51.6	48.2
Accrued liabilities	72.3	58.6
Restructuring, warranty and other provisions	27.2	31.8
Due to related parties (note 9)	0.6	0.6
Other payables	36	21.4
Accounts payable and accrued liabilities	$ 251.1	$ 215

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - Matthews Group - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Lease Properties
Related Party Transaction [Line Items]
Lease payments for base rent and operating costs	$ 1.1	$ 1.3	$ 3.2	$ 3.9
Other Related Party Transactions
Related Party Transaction [Line Items]
Sales to related party	0.4	0.1	2.2	0.7
Purchases from related party	$ 1.5	$ 0.8	$ 2.8	$ 3.8

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail) - USD ($) $ in Millions	Jan. 31, 2014	Sep. 30, 2015	Apr. 30, 2015	Feb. 28, 2015	Sep. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Debt Instrument [Line Items]
Repayment of term loan								$ 30.4
Debt retirement and other debt costs					$ 0.5		$ 0.7	9.6	$ 16.2	$ 7
Aastra Technologies Limited
Debt Instrument [Line Items]
Cash payment to acquire business	$ 80
Term Loan
Debt Instrument [Line Items]
Voluntary repayment of term loan				$ 25
Debt retirement and other debt costs						$ 0.7
January 2014 Credit Facilities
Debt Instrument [Line Items]
Proceeds from new credit facilities	353.2
Debt discount amount	1.8
Repayment of term loan	258.5		$ 279.1
Total expenses related to credit facilities	11
Unamortized debt issue costs and original issue discount expensed	10		8.4
Debt prepayment fees	4.2
Other costs relating refinancing	0.5
January 2014 Credit Facilities | Term Loan
Debt Instrument [Line Items]
Debt instrument, face Amount	355
January 2014 Credit Facilities | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, face Amount	$ 50
April 2015 Credit Facilities
Debt Instrument [Line Items]
Proceeds from new credit facilities			653.4
Debt discount amount			6.6
Total expenses related to credit facilities			17.2
Debt retirement and other debt costs		$ 0.5
Deferred finance cost		$ 1.9			$ 1.9			$ 1.9
New credit facility covenants unrestricted cash			75
New credit facility covenants								The April 2015 Credit Facilities contain affirmative and negative covenants, including: (a) periodic financial reporting requirements, (b) a maximum ratio of Consolidated Total Debt (net of up to $75.0 of unrestricted cash) to the trailing twelve months of Consolidated EBITDA, as specified in the April 2015 Credit Facilities (“Leverage Ratio”), (c) limitations on the incurrence of subsidiary indebtedness and also the borrowers themselves, (d) limitations on liens, (e) limitations on investments, (f) limitations on the payment of dividends and (g) limitations on capital expenditures.
April 2015 Credit Facilities | Term Loan
Debt Instrument [Line Items]
Debt instrument, face Amount			660
Debt discount amount			6.6
Total expenses related to credit facilities			$ 15.5
Debt instrument maturity month			2022-04
Long-term loan			$ 660
LIBOR floor rate			1.00%
Term loan quarterly principal repayments percentage			0.25%
Term loans, annual principal repayments period			100 days
Prepayment of term loan at premium			1.00%
April 2015 Credit Facilities | Term Loan | London Interbank Offered Rate Libor
Debt Instrument [Line Items]
Debt instrument basis spread over LIBOR rate			4.50%
April 2015 Credit Facilities | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, face Amount			$ 50
Total expenses related to credit facilities			$ 1.7
Debt instrument maturity month			2020-04
April 2015 Credit Facilities | Revolving Credit Facility | London Interbank Offered Rate Libor
Debt Instrument [Line Items]
Debt instrument basis spread over LIBOR rate			4.00%
Legacy Credit Facilities | Mavenir Systems Inc
Debt Instrument [Line Items]
Repayment of term loan			$ 26.9

Maximum Leverage Ratio Under Te

Maximum Leverage Ratio Under Term Loan Agreement (Detail)	9 Months Ended
	Sep. 30, 2015
September 30, 2015 through December 31, 2015
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	525.00%
March 31, 2016
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	475.00%
June 30, 2016 through September 30, 2016
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	425.00%
December 31, 2016 through September 30, 2017
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	325.00%
December 31, 2017 through September 30, 2018
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	300.00%
December 31, 2018 through September 30, 2019
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	275.00%
December 31, 2019 and thereafter
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	250.00%

Schedule of Maximum Leverage Ra

Schedule of Maximum Leverage Ratio and Actual Leverage Ratio (Detail)	9 Months Ended
	Sep. 30, 2015
Debt Instrument [Line Items]
Maximum Leverage Ratio	525.00%
Actual Leverage Ratio	387.00%

Pension Plans - Additional Info

Pension Plans - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension liability	$ 143.7	$ 136.1

Net Periodic Benefit Cost (Deta

Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plans, Contribution expense		$ 2.7	$ 3.5	$ 8.7	$ 9.5
Defined benefit plans, Current service cost		0.7	0.5	2.3	1.5
Defined benefit plans, Interest cost		3	3.5	8.8	10.1
Defined benefit plans, Expected return on plan assets		(2.8)	(3.4)	(8.2)	(10)
Defined benefit plans, Recognized actuarial loss	[1]	0.6	0.2	1.7	0.6
Total periodic benefit cost, net		$ 4.2	$ 4.3	$ 13.3	$ 11.7
[1]	Recognized actuarial loss represents the amortization of unrecognized actuarial loss out of the accumulated other comprehensive loss into selling, general and administrative expense.

Commitments, Guarantees and C64

Commitments, Guarantees and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Commitments and Contingencies Disclosure [Line Items]
Letters of credit, bank guarantees and other similar instruments	$ 7.6	$ 4

Share Capital - Additional Info

Share Capital - Additional Information (Detail) shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015Voteshares	Sep. 30, 2014shares	Sep. 30, 2015Voteshares	Sep. 30, 2014shares	Dec. 31, 2014Voteshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common share holders vote per share | Vote	1		1		1
Restricted stock units granted	0.6	0.4	2.2	0.7
Restricted stock units outstanding	2.7		2.7		0.7
2014 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options available for grant	4.7		4.7		8.3

Stock Option Activity (Detail)

Stock Option Activity (Detail) - $ / shares shares in Millions	3 Months Ended								9 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Mar. 30, 2014	Sep. 30, 2015
Number of Options
Balance, beginning of period	9.9	7.5	6.8	7	7.4	7.2	7.2	7.2	6.8
Granted	0.4	0.2	1		0.2	0.8	0.3	0.3
Granted in connection with the acquisition of Mavenir (note 3)		2.5
Exercised	(0.1)	(0.2)	(0.1)		(0.5)	(0.5)	(0.3)
Forfeited	(0.2)	(0.1)	(0.2)		(0.1)
Expired	(0.1)					(0.1)
Balance, end of period	9.9	9.9	7.5	6.8	7	7.4	7.2		9.9
Number of options exercisable	5.1				3.6				5.1
Weighted Average Exercise Price
Balance, beginning of period	$ 6.86	$ 6.58	$ 6.12	$ 6.03	$ 5.83	$ 5.28	$ 5.10	$ 5.10	$ 6.12
Granted	8.31	8.96	9.70		9.96	10.14	8.79
Granted in connection with the acquisition of Mavenir (note 3)		7.50
Exercised	4.21	4.82	7		4.24	4.96	4.90
Forfeited	9.40	7.71	5.56		5.66	4.76	4.57
Expired	7.83	7.89	10.24		4.46	4.91	7.61
Balance, end of period	6.89	$ 6.86	$ 6.58	$ 6.12	6.03	$ 5.83	$ 5.28		6.89
Number of options exercisable	$ 6.19				$ 5.81				$ 6.19

Stock Option Activity (Parenthe

Stock Option Activity (Parenthetical) (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Jun. 30, 2014	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options expired during the period	100,000	100,000
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options expired during the period			100,000

Assumptions Used in Black-Schol

Assumptions Used in Black-Scholes Option-Pricing Model (Detail) - $ / shares shares in Millions	3 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Mar. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted in normal course	0.4	0.2	1	0.2	0.8	0.3	0.3
Risk-free interest rate	1.50%	1.30%	1.60%	1.70%	1.60%		1.50%
Dividends	0.00%	0.00%	0.00%	0.00%	0.00%		0.00%
Expected volatility	52.00%	52.00%	52.00%	55.00%	55.00%		55.00%
Annual forfeiture rate	10.00%	10.00%	10.00%	10.00%	10.00%		10.00%
Expected life of the options	5 years	5 years	5 years	5 years	5 years		5 years
Weighted average fair value per option	$ 3.66	$ 3.93	$ 4.49	$ 4.63	$ 4.70		$ 4.06

Carrying Value of Warrants Outs

Carrying Value of Warrants Outstanding (Detail) - USD ($) $ in Millions		Sep. 30, 2015	Dec. 31, 2014
Class of Warrant or Right [Line Items]
Warrants issued in connection with government funding	[1]	$ 39.1	$ 39.1
[1]	At September 30, 2015, there were 2.48 million warrants outstanding that were issued in connection with government funding (December 31, 2014-2.48 million). The warrants have an exercise price of nil, are exercisable at any time at the option of the holder and have no expiry date.

Carrying Value of Warrants Ou70

Carrying Value of Warrants Outstanding (Parenthetical) (Detail) - $ / shares shares in Thousands	Sep. 30, 2015	Dec. 31, 2014
Class of Warrant or Right [Line Items]
Warrants, outstanding	2,480	2,480
Warrants, exercise price	$ 0	$ 0

Basic and Diluted Weighted Aver

Basic and Diluted Weighted Average Common Shares Outstanding for Earnings Per Share Calculations (Detail) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Weighted Average Number of Shares Outstanding [Line Items]
Weighted average common shares outstanding, basic and diluted	120.2	99.6	111.4	94.1

Securities Excluded from Comput

Securities Excluded from Computation of Diluted Earnings Per Share (Detail) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average number outstanding	6.1	1.2	4.4	0.8
Stock Options | Net loss attributable to common shareholders from continuing operations
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average number outstanding	3.4	5.2	4.2	5.8
Warrants | Net loss attributable to common shareholders from continuing operations
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average number outstanding	2.5	2.5	2.5	2.5
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average number outstanding	2.7		2.1
Restricted Stock Units (RSUs) | Net loss attributable to common shareholders from continuing operations
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average number outstanding		0.7		0.3

Weighted Average Common Share73

Weighted Average Common Shares Outstanding - Additional Information (Detail) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of contingently issuable shares of stock options which could potentially dilute basic earnings per share in future periods	0.5	0.5	0.5	0.5

Special Charges and Restructu74

Special Charges and Restructuring Costs - Additional Information (Detail) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2015USD ($)Employee	Jun. 30, 2015USD ($)Employee	Mar. 31, 2015USD ($)Employee	Sep. 30, 2014USD ($)Employee	Jun. 30, 2014USD ($)Employee	Mar. 31, 2014USD ($)Employee	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Dec. 31, 2014USD ($)
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs	$ 10.3	$ 14.3	$ 13	$ 31.6	$ 10.9	$ 13.2	$ 37.6	$ 55.7
Current provision for restructuring cost	12						$ 12		$ 19.4
Workforce Reduction
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs	$ 4.6	$ 3.3	$ 1.4	$ 24.7	$ 3.9	$ 2.2
Approximate number of employees terminated | Employee	90	35	10	200	50	50
Facility-Related, Including Lease Termination Obligation
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs	$ 0.6	$ 0.3		$ 1	$ 2.8	$ 1.1
Integration and Acquisition Related
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs	$ 5.1
Integration Related
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs		4	$ 5.9	$ 5.9	$ 4.2	4.9
Acquisition Related
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs		$ 6.7	$ 5.7			$ 5

Summary of Change in Provision

Summary of Change in Provision for Special Charges and Restructuring Costs (Detail) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014
Restructuring Cost and Reserve [Line Items]
Beginning balance of provision	$ 14.4	$ 16.6	$ 23.1	$ 28.1	$ 11.1	$ 9.4	$ 7.1
Restructuring liabilities acquired relating to the acquisition of Aastra							2.3
Charges	5.2	3.6	1.4	6.7	25.7	6.7	3.3
Cash payments	(4.9)	(5.8)	(7.9)	(11.7)	(8.7)	(5)	(3.3)
Ending balance of provision	14.7	14.4	16.6	23.1	28.1	11.1	9.4
Workforce Reduction
Restructuring Cost and Reserve [Line Items]
Beginning balance of provision	8.4	10.3	15.5	20.3	2.9	3.6	1.7
Restructuring liabilities acquired relating to the acquisition of Aastra							2
Charges	4.6	3.3	1.4	6.2	24.7	3.9	2.2
Cash payments	(3.9)	(5.2)	(6.6)	(11)	(7.3)	(4.6)	(2.3)
Ending balance of provision	9.1	8.4	10.3	15.5	20.3	2.9	3.6
Facility-Related, Including Lease Termination Obligation
Restructuring Cost and Reserve [Line Items]
Beginning balance of provision	6	6.3	7.6	7.8	8.2	5.8	5.4
Restructuring liabilities acquired relating to the acquisition of Aastra							0.3
Charges	0.6	0.3		0.5	1	2.8	1.1
Cash payments	(1)	(0.6)	(1.3)	(0.7)	(1.4)	(0.4)	(1)
Ending balance of provision	$ 5.6	$ 6	$ 6.3	$ 7.6	$ 7.8	$ 8.2	$ 5.8

Segment Information - Additiona

Segment Information - Additional Information (Detail)	3 Months Ended
	Jun. 30, 2015Entity
Segment Reporting Information [Line Items]
Number of key business units	3

Results of Operations for Compa

Results of Operations for Company's Segments (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Revenues	$ 290.7	$ 272.4	$ 815.7	$ 802.6
Gross margin	152.7	142.9	432.8	424.1
Product
Segment Reporting Information [Line Items]
Revenues	178.4	177.3	515.6	535
Gross margin	97.2	98.9	284.9	303.6
Recurring
Segment Reporting Information [Line Items]
Revenues	85.3	73.7	236.5	205.6
Gross margin	46.8	37.3	126.3	103.5
Services
Segment Reporting Information [Line Items]
Revenues	30	23	82.8	69.4
Gross margin	10.5	8.3	31.1	24.4
Operating Segments
Segment Reporting Information [Line Items]
Revenues	293.7	274	834.9	810
Gross margin	154.5	144.5	442.3	431.5
Purchase Accounting Adjustments
Segment Reporting Information [Line Items]
Revenues	(3)	(1.6)	(19.2)	(7.4)
Gross margin	(1.8)	(1.6)	(9.5)	(7.4)
Premise
Segment Reporting Information [Line Items]
Revenues	207.9	241.7	636.6	718.6
Gross margin	111.8	127.6	342.3	382.3
Premise | Product
Segment Reporting Information [Line Items]
Revenues	141.9	168.5	434	513.3
Gross margin	78.5	94.1	242.6	291.9
Premise | Recurring
Segment Reporting Information [Line Items]
Revenues	47.5	52	143.7	143.9
Gross margin	27.9	26.9	81.7	73.7
Premise | Services
Segment Reporting Information [Line Items]
Revenues	19.3	22.8	61.3	68.8
Gross margin	6.2	8.2	20.4	24.1
Premise | Operating Segments
Segment Reporting Information [Line Items]
Revenues	208.7	243.3	639	726
Gross margin	112.6	129.2	344.7	389.7
Premise | Purchase Accounting Adjustments
Segment Reporting Information [Line Items]
Revenues	(0.8)	(1.6)	(2.4)	(7.4)
Gross margin	(0.8)	(1.6)	(2.4)	(7.4)
Cloud
Segment Reporting Information [Line Items]
Revenues	40.4	30.7	112.2	84
Gross margin	20.1	15.3	55.6	41.8
Cloud | Product
Segment Reporting Information [Line Items]
Revenues	11.8	8.8	33.8	21.7
Gross margin	6.6	4.8	18.3	11.7
Cloud | Recurring
Segment Reporting Information [Line Items]
Revenues	28.1	21.7	76.7	61.7
Gross margin	13.3	10.4	36.4	29.8
Cloud | Services
Segment Reporting Information [Line Items]
Revenues	0.5	0.2	1.7	0.6
Gross margin	0.2	0.1	0.9	0.3
Cloud | Operating Segments
Segment Reporting Information [Line Items]
Revenues	40.4	30.7	112.2	84
Gross margin	20.1	$ 15.3	55.6	$ 41.8
Mobile
Segment Reporting Information [Line Items]
Revenues	42.4		66.9
Gross margin	20.8		34.9
Mobile | Product
Segment Reporting Information [Line Items]
Revenues	24.7		47.8
Gross margin	12.1		24
Mobile | Recurring
Segment Reporting Information [Line Items]
Revenues	9.7		16.1
Gross margin	5.6		8.2
Mobile | Services
Segment Reporting Information [Line Items]
Revenues	10.2		19.8
Gross margin	4.1		9.8
Mobile | Operating Segments
Segment Reporting Information [Line Items]
Revenues	44.6		83.7
Gross margin	21.8		42
Mobile | Purchase Accounting Adjustments
Segment Reporting Information [Line Items]
Revenues	(2.2)		(16.8)
Gross margin	$ (1)		$ (7.1)

Revenues from External Customer

Revenues from External Customers (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues from External Customers [Line Items]
Revenues	$ 290.7	$ 272.4	$ 815.7	$ 802.6
Canada
Revenues from External Customers [Line Items]
Revenues	7.9	8.6	26.8	28.6
United States
Revenues from External Customers [Line Items]
Revenues	133.2	104.9	350.1	314.9
Rest of Americas
Revenues from External Customers [Line Items]
Revenues	4.5	6.2	11.7	17.1
Americas
Revenues from External Customers [Line Items]
Revenues	145.6	119.7	388.6	360.6
Germany
Revenues from External Customers [Line Items]
Revenues	32.2	35.6	85.7	93.7
U.K.
Revenues from External Customers [Line Items]
Revenues	31.2	28.6	82.4	91
Rest of EMEA
Revenues from External Customers [Line Items]
Revenues	71.4	79.6	220.3	230.6
EMEA
Revenues from External Customers [Line Items]
Revenues	134.8	143.8	388.4	415.3
Asia-Pacific
Revenues from External Customers [Line Items]
Revenues	$ 10.3	$ 8.9	$ 38.7	$ 26.7

Supplementary Cash Flow Infor79

Supplementary Cash Flow Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Changes in non-cash operating assets and liabilities:
Accounts receivable and sales-type lease receivables	$ 35.1	$ 16.8	$ 31.8	$ 11.4
Inventories	(2.6)	(9)	(16)	3
Other current assets	(2)	(8.4)	5.5	(5.4)
Other non-current assets	1.2	(0.3)	5	0.3
Accounts payable and accrued liabilities	(21.7)	24.3	(52)	31
Deferred revenue	(2.9)	(1)	14.6	9
Other non-current liabilities	(2.6)	(4.9)	(0.7)	(7.3)
Change in pension liability	(0.2)	1.8	(1)	(1.5)
Change in non-cash operating assets and liabilities	4.3	19.3	(12.8)	40.5
Other items:
Interest payments	8.7	4.9	17	14
Income tax payments	2.3	5.2	7.4	16.1
Property and equipment additions financed through capital lease	$ 0.8	$ 1.7	$ 2.6	$ 4.4

Supplementary Cash Flow Infor80

Supplementary Cash Flow Information - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Supplemental Cash Flow Information [Abstract]
Cash	$ 82.7	$ 110
Cash equivalents	$ 0.2	$ 1.3

Hedging Activities - Additional

Hedging Activities - Additional Information (Detail)	9 Months Ended	12 Months Ended
	Sep. 30, 2015USD ($)Contract	Dec. 31, 2014USD ($)Contract
Fair value hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net unrealized loss on fair value adjustments on outstanding forward contracts	$ (100,000)
Forward contracts outstanding | Contract		0
Fair value hedging | Sale contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount	$ 17,400,000
Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount		$ 10,200,000
Forward contracts outstanding | Contract	0
Cash flow hedging | Maximum
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net unrealized loss on fair value adjustments on outstanding forward contracts		$ (100,000)
Forward contracts, held period		3 months

Other Income - Additional Infor

Other Income - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Other income
Other Income Expense [Line Items]
Foreign exchange gain (loss)	$ (0.9)	$ 2.3	$ 18.5	$ 3.3