Mitel Networks (MITL) 10-Q 2 Nov 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 27, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
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		120,018,873

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions		Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents		$ 55.4	$ 97.3
Accounts receivable (net of allowance for doubtful accounts of $16.3 and $11.8, respectively)		216.4	186.3
Sales-type lease receivables (net) (note 5)		4.5	5.8
Inventories (net) (note 6)		106.9	74.9
Other current assets (note 7)		81.6	57.7
Assets of component held for sale, current (note 4)			121.3
Assets, Current, Total		464.8	543.3
Non-current portion of sales-type lease receivables (net) (note 5)		4.9	6.7
Deferred tax asset		131.5	185.2
Property and equipment (net)		54.7	39.1
Identifiable intangible assets (net) (note 8)		410.8	100.4
Goodwill		549	346.3
Other non-current assets		30.7	7.9
Assets of component held for sale, non-current (note 4)			332.5
Assets, Total		1,646.4	1,561.4
Current liabilities:
Accounts payable and accrued liabilities (note 9)		292.5	200.6
Current portion of deferred revenue		154.9	88
Current portion of long-term debt (note 11)		16.5	38.9
Liabilities of component held for sale, current (note 4)			58.3
Liabilities, Current, Total		463.9	385.8
Long-term debt (note 11)		615.8	547.1
Long-term portion of deferred revenue		59.1	39.4
Deferred tax liability		10.3	10
Pension liability (note 12)		148.7	145.5
Other non-current liabilities		30.5	25.9
Liabilities of component held for sale, non-current (note 4)			24.8
Liabilities, Total		1,328.3	1,178.5
Commitments, guarantees and contingencies (note 13)
Shareholders' equity:
Common shares, without par value and additional paid-in capital - unlimited shares authorized; issued and outstanding: 119.9 and 122.0, respectively (note 14)		1,461.7	1,482.2
Warrants (note 15)	[1]	39.1	39.1
Accumulated deficit		(988.9)	(946.7)
Accumulated other comprehensive loss		(193.8)	(191.7)
Stockholders' Equity Attributable to Parent, Total		318.1	382.9
Liabilities and Equity, Total		$ 1,646.4	$ 1,561.4
[1]	At September 30, 2017, there were 2.48 million warrants outstanding that were issued in connection with government funding (December 31, 2016-2.48 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, 2017	Dec. 31, 2016
Accounts receivable, allowance for doubtful accounts	$ 16.3	$ 11.8
Common shares, without par value
Common shares, shares issued	119.9	122
Common shares, shares outstanding	119.9	122

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues	$ 241.5	$ 234.5	$ 703.2	$ 727.8
Cost of revenues	108.5	109.8	321.6	336.1
Gross margin	133	124.7	381.6	391.7
Expenses (Income):
Selling, general and administrative	84	82.9	255	255.6
Research and development	22.5	23	67.8	74.7
Special charges and restructuring costs (note 17)	35.7	20.8	56.4	57.8
Amortization of acquisition-related intangible assets	8.5	9.5	25.7	26.3
Income from termination fee received (note 21)		(60)		(60)
Operating Expenses, Total	150.7	76.2	404.9	354.4
Operating income (loss)	(17.7)	48.5	(23.3)	37.3
Interest expense	(3.3)	(3.9)	(9)	(12.7)
Debt retirement and other debt costs (note 11)		(0.4)	(18)	(2.1)
Other income (expense)	(1.1)	1.3	(1)	2
Income (loss) from continuing operations, before income taxes	(22.1)	45.5	(51.3)	24.5
Current income tax recovery (expense)	1.9	1.2	(1.5)	(2)
Deferred income tax recovery (expense)	(6.6)	(12.9)	6.2	(1.4)
Net income (loss) from continuing operations	(26.8)	33.8	(46.6)	21.1
Net loss from discontinued operations, net of tax (note 4)		(8.7)	(1.4)	(29.2)
Net income (loss)	$ (26.8)	$ 25.1	$ (48)	$ (8.1)
Net income (loss) per common share - Basic
Net income (loss) from continuing operations	$ (0.23)	$ 0.28	$ (0.39)	$ 0.17
Net loss from discontinued operations		(0.07)	(0.01)	(0.24)
Net income (loss) per share	(0.23)	0.21	(0.40)	(0.07)
Net income (loss) per common share - Diluted
Net income (loss) from continuing operations	(0.23)	0.27	(0.39)	0.17
Net loss from discontinued operations		(0.07)	(0.01)	(0.23)
Net income (loss) per share	$ (0.23)	$ 0.20	$ (0.40)	$ (0.06)
Weighted-average number of common shares outstanding (note 16)
Basic	118.9	121.7	120.9	121.3
Diluted	118.9	125.9	120.9	125.5

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net income (loss)	$ (26.8)	$ 25.1	$ (48)	$ (8.1)
Other comprehensive income (loss):
Foreign currency translation adjustments	1.9	0.4	3.3	(1.2)
Pension liability adjustments	(2.6)	(39.3)	(5.4)	(63.3)
Other comprehensive loss, net of tax, total	(0.7)	(38.9)	(2.1)	(64.5)
Comprehensive income (loss)	$ (27.5)	$ (13.8)	$ (50.1)	$ (72.6)

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common Shares	Common Shares and Additional Paid-in Capital	Warrants	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balance (in shares) at Dec. 31, 2015		120.8
Balance at Dec. 31, 2015	$ 604.9		$ 1,463.2	$ 39.1	$ (729.4)	$ (168)
Comprehensive income (loss)	(33.5)				(22.4)	(11.1)
Exercise of stock options and vesting of restricted stock units (in shares)		0.3
Exercise of stock options and vesting of restricted stock units	0.2		0.2
Stock-based compensation	4.3		4.3
Balance (in shares) at Mar. 31, 2016		121.1
Balance at Mar. 31, 2016	575.9		1,467.7	39.1	(751.8)	(179.1)
Balance (in shares) at Dec. 31, 2015		120.8
Balance at Dec. 31, 2015	604.9		1,463.2	39.1	(729.4)	(168)
Comprehensive income (loss)	(72.6)
Balance (in shares) at Sep. 30, 2016		121.9
Balance at Sep. 30, 2016	546.8		1,477.7	39.1	(737.5)	(232.5)
Balance (in shares) at Mar. 31, 2016		121.1
Balance at Mar. 31, 2016	575.9		1,467.7	39.1	(751.8)	(179.1)
Comprehensive income (loss)	(25.3)				(10.8)	(14.5)
Exercise of stock options and vesting of restricted stock units (in shares)		0.4
Exercise of stock options and vesting of restricted stock units	1.3		1.3
Stock-based compensation	3.9		3.9
Balance (in shares) at Jun. 30, 2016		121.5
Balance at Jun. 30, 2016	555.8		1,472.9	39.1	(762.6)	(193.6)
Comprehensive income (loss)	(13.8)				25.1	(38.9)
Exercise of stock options and vesting of restricted stock units (in shares)		0.4
Exercise of stock options and vesting of restricted stock units	0.5		0.5
Stock-based compensation	4.3		4.3
Balance (in shares) at Sep. 30, 2016		121.9
Balance at Sep. 30, 2016	546.8		1,477.7	39.1	(737.5)	(232.5)
Comprehensive income (loss)	(168.4)				(209.2)	40.8
Exercise of stock options and vesting of restricted stock units (in shares)		0.1
Exercise of stock options and vesting of restricted stock units	0.2		0.2
Stock-based compensation	$ 4.3		4.3
Balance (in shares) at Dec. 31, 2016	122	122
Balance at Dec. 31, 2016	$ 382.9		1,482.2	39.1	(946.7)	(191.7)
Adoption of new accounting standard (note 2)			(5.8)		5.8
Comprehensive income (loss)	(24.4)				(21.1)	(3.3)
Repurchase of shares (note 14)	(0.8)		(0.8)
Repurchase of shares (note 14) (in shares)		(0.1)
Exercise of stock options and vesting of restricted stock units (in shares)		0.8
Exercise of stock options and vesting of restricted stock units	1		1
Stock-based compensation	3.3		3.3
Balance (in shares) at Mar. 31, 2017		122.7
Balance at Mar. 31, 2017	$ 362		1,479.9	39.1	(962)	(195)
Balance (in shares) at Dec. 31, 2016	122	122
Balance at Dec. 31, 2016	$ 382.9		1,482.2	39.1	(946.7)	(191.7)
Comprehensive income (loss)	$ (50.1)
Balance (in shares) at Sep. 30, 2017	119.9	119.9
Balance at Sep. 30, 2017	$ 318.1		1,461.7	39.1	(988.9)	(193.8)
Balance (in shares) at Mar. 31, 2017		122.7
Balance at Mar. 31, 2017	362		1,479.9	39.1	(962)	(195)
Comprehensive income (loss)	1.8				(0.1)	1.9
Repurchase of shares (note 14)	(34.9)		(34.9)
Repurchase of shares (note 14) (in shares)		(4.8)
Exercise of stock options and vesting of restricted stock units (in shares)		0.3
Exercise of stock options and vesting of restricted stock units	1.1		1.1
Stock-based compensation	4.4		4.4
Balance (in shares) at Jun. 30, 2017		118.2
Balance at Jun. 30, 2017	334.4		1,450.5	39.1	(962.1)	(193.1)
Comprehensive income (loss)	(27.5)				(26.8)	(0.7)
Exercise of stock options and vesting of restricted stock units (in shares)		1.7
Exercise of stock options and vesting of restricted stock units	8.1		8.1
Stock-based compensation	$ 3.1		3.1
Balance (in shares) at Sep. 30, 2017	119.9	119.9
Balance at Sep. 30, 2017	$ 318.1		$ 1,461.7	$ 39.1	$ (988.9)	$ (193.8)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
CASH PROVIDED BY (USED IN) Operating activities:
Net income (loss)	$ (26.8)	$ 25.1	$ (48)	$ (8.1)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Amortization and depreciation	13.2	26	39.1	75.8
Stock-based compensation	3.1	4.3	10.8	12.5
Deferred income tax expense (recovery)	6.6	9.1	(12.7)	(10.8)
Non-cash portion of debt retirement and other debt costs (note 11)		0.4	18	2.1
Gain on divestiture of the Mobile business unit (note 4)			(7.9)
Accretion of interest	(0.3)		(0.7)
Non-cash movements in provisions	3.5	3.8	6.4	3
Change in non-cashoperating assets and liabilities (note 19)	28.6	(39)	24.6	(12)
Net cash provided by (used in) operating activities	27.9	29.7	29.6	62.5
Investing activities:
Additions to property, equipment and intangible assets	(4.9)	(4.6)	(13.4)	(11.9)
Acquisitions, net of cash acquired (note 3)	(400.6)		(400.6)
Proceeds from sale of discontinued operations, net of cash divested (note 4)			336.9
Net cash provided by (used in) investing activities	(405.5)	(4.6)	(77.1)	(11.9)
Financing activities:
Payment of debt issue costs and other debt costs (note 11)	(9.5)		(16.1)
Proceeds from issuance of common shares from option exercises	8.1	0.5	10.2	2
Repurchase of common shares			(35.7)
Net cash provided by (used in) financing activities	380.9	(12.9)	(3.5)	(67.8)
Effect of exchange rate changes on cash and cash equivalents	1.3	(0.1)	5.6	(1.1)
Net increase (decrease) in cash and cash equivalents	4.6	12.1	(45.4)	(18.3)
Cash and cash equivalents, beginning of period	50.8	61.2	100.8	91.6
Cash and cash equivalents, end of period	55.4	73.3	55.4	73.3
Revolving Credit Facility
Financing activities:
Repayment of capital lease liabilities and other long-term debt	(1.3)	(1.9)	(5)	(4.7)
March 2017 Credit Facilities | Term Loan
Financing activities:
Proceeds from issuance/borrowings credit facility	298.5		448.5
Repayments of credit facility	(1.9)		(3.8)
March 2017 Credit Facilities | Revolving Credit Facility
Financing activities:
Proceeds from issuance/borrowings credit facility	200		363
Repayments of credit facility	$ (113)		(173)
April 2015 Credit Facilities | Term Loan
Financing activities:
Proceeds from issuance/borrowings credit facility		17	40	53
Repayments of credit facility		(11.5)	(591.6)	(65.1)
April 2015 Credit Facilities | Revolving Credit Facility
Financing activities:
Repayments of credit facility		$ (17)	$ (40)	$ (53)

BASIS OF PRESENTATION

BASIS OF PRESENTATION	9 Months Ended
	Sep. 30, 2017
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 each of the years ended December 31, 2016, 2015 and 2014 (the “Annual Financial Statements”) contained in the Company’s report on Form 10-K

SIGNIFICANT ACCOUNTING POLICIES

SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2017
SIGNIFICANT ACCOUNTING POLICIES	2. SIGNIFICANT ACCOUNTING POLICIES The Company’s significant accounting policies at December 31, 2016 are described in note 2 to the Annual Financial Statements. There have been no significant changes to these policies, other than those noted below. a) Accounting pronouncements adopted in 2017 Stock-based compensation In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09 paid-in Statement of cash flows In August 2016, the FASB issued ASU 2016-15 Simplifying the test for goodwill impairment In January 2017, the FASB issued ASU 2017-04 b) Accounting pronouncements issued but not yet adopted Revenue recognition In May 2014, the FASB issued ASU 2014-09 2015-14, 2016-08 2016-12, 2014-09. 2014-09 The ASU permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the cumulative catch-up Leases In February 2016, the FASB issued ASU 2016-02 right-of-use Credit losses on financial instruments In June 2016, the FASB issued ASU 2016-13 Income statement classification of net pension benefit costs In March 2017, the FASB issued ASU 2017-07 non-service Statement of cash flows – presentation of restricted cash In November 2016, the FASB issued ASU 2016-18

ACQUISITION

ACQUISITION	9 Months Ended
	Sep. 30, 2017
ACQUISITION	3. ACQUISITION On September 25, 2017, Mitel acquired ShoreTel, Inc. (“ShoreTel”) (NASDAQ:SHOR), a provider of unified video, voice and content communications solutions, primarily in the U.S., with revenues of $357.8 for the twelve months ended June 30, 2017. Mitel acquired all of the outstanding shares of common stock of ShoreTel in exchange for total consideration of $531.4, which includes amounts paid to cash out all in-the-money, Mitel management believes the transaction provides the Company with financial scale and operating leverage, in particular in the U.S. The transaction will allow the combined 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 within the next twelve months, may differ significantly from the estimates. The preliminary purchase price and allocation of the purchase price is as follows: September 25, 2017 Net assets: Cash and cash equivalents $ 120.4 Accounts receivable (1) 24.0 Inventories (2) 13.1 Other current assets 12.6 Property and equipment 18.1 Intangible assets – customer relationships (3)(5) 195.9 Intangible assets – developed technology (4)(5) 137.8 Goodwill (5) 202.7 Other non-current 6.2 Accounts payable and accrued liabilities (55.4 ) Current portion of deferred revenue (60.3 ) Long-term portion of deferred revenue (17.9 ) Deferred tax liability (62.1 ) Other non-current (3.7 ) Net assets acquired $ 531.4 Consideration given: Cash paid to ShoreTel shareholders on September 25, 2017 $ 521.0 Cash paid to holders of ShoreTel options and restricted stock units in October 2017 (6) 10.4 Total consideration given $ 531.4 (1) Fair value of accounts receivable consists of gross contractual amounts receivable of $24.5, less best estimate of amounts not expected to be collected of $0.5. (2) Fair value of inventory consists of inventory with a historical cost of $14.7 less a historical provision of $1.6. (3) Intangible assets – customer relationships are expected to be amortized over their estimated useful life of 6 years. (4) Intangible assets – developed technology is expected to be amortized over their estimated useful life of 6 years. (5) Neither the goodwill nor the intangible assets are expected to be deductible for tax purposes. (6) Cash paid to holders of ShoreTel vested, in-the-money ShoreTel’s results of operations are included in the consolidated statements of operations of the combined entity from the date of acquisition. The amount of revenue included in the Company’s results of operations for the three and nine months ended September 30, 2017 as a result of the acquisition was $7.7 and $7.7, respectively. The amount of net loss included in the Company’s results of operations for the three and nine months ended September 30, 2017 as a result of the acquisition was $4.0 and $4.0, respectively, which includes amortization of acquired intangible assets of $0.6 and $0.6, respectively. The following unaudited pro-forma Three Months Ended Nine Months Ended 2017 2016 2017 2016 Operations Revenues $ 321.5 $ 319.4 $ 965.4 $ 989.4 Net earnings (loss) $ (59.3 ) $ 0.9 $ (121.0 ) $ (79.1 ) Net earnings (loss) per share $ (0.50 ) $ 0.01 $ (1.00 ) $ (0.65 ) These pro-forma pro-forma • A reduction to revenue as a result of the valuation of the deferred revenue acquired being below ShoreTel’s historical book value. • Amortization of intangible assets that arose from the acquisition of $13.9 per quarter. • Increase to interest expense of approximately $5.0 per quarter as a result of the additional borrowings incurred to finance the acquisition. • A tax provision based on an estimated effective tax rate of nil as a result of unrecognized tax loss carryforwards.

DISCONTINUED OPERATIONS

DISCONTINUED OPERATIONS	9 Months Ended
	Sep. 30, 2017
DISCONTINUED OPERATIONS	4. DISCONTINUED OPERATIONS On December 18, 2016, Mitel entered into a definitive agreement to divest its Mobile business unit to the parent company of Xura, Inc. (“Xura”) for $350.0 in cash, a $35.0 non-interest non-interest re-financing The disposal of the Mobile business unit is considered a strategic shift away from the sale of software-based network solutions for mobile carriers. As a result, the operations of the Mobile business unit have been reclassified as discontinued operations on the consolidated statements of operations and the assets and liabilities of the Mobile business unit have been reclassified as assets and liabilities held for sale on the consolidated balance sheets. Assets and liabilities held for sale for the Mobile business unit were as follows: December 31, Assets of component held for sale, current: Cash and cash equivalents $ 3.5 Accounts receivable 83.2 Inventories 7.1 Other current assets 27.5 $ 121.3 Assets of component held for sale, non-current: Property and equipment (net) $ 13.8 Identifiable intangible assets (net) 215.3 Goodwill 99.5 Other non-current 3.9 $ 332.5 Liabilities of component held for sale, current: Accounts payable and accrued liabilities $ 43.3 Current portion of deferred revenue 14.6 Current portion of long-term debt – capital leases 0.4 $ 58.3 Liabilities of component held for sale, non-current: Long-term debt – capital leases $ 0.9 Long-term portion of deferred revenue 1.7 Deferred tax liability 14.3 Other non-current 7.9 $ 24.8 Summarized results of operations for the Mobile business unit are as follows: Three Months Ended September 30 Nine Months Ended September 30 2017 2016 2017 (1) 2016 Revenues $ — $ 45.3 $ 8.0 $ 135.3 Cost of revenues — (21.7 ) (6.3 ) (58.7 ) Selling, general and administrative expenses — (7.5 ) (5.5 ) (28.4 ) Research and development expenses — (11.4 ) (8.4 ) (37.1 ) Special charges and restructuring costs — (1.7 ) — (5.8 ) Amortization of acquisition-related intangible assets — (10.1 ) — (30.3 ) Interest expense (2) — (5.5 ) (3.7 ) (16.5 ) Other income — 0.1 — 0.1 Gain on disposal — — 7.9 — Loss from discontinued operations, before income taxes — (12.5 ) (8.0 ) (41.4 ) Income tax recovery — 3.8 6.6 12.2 Comprehensive loss $ — $ (8.7 ) $ (1.4 ) $ (29.2 ) (1) Operating results for the nine months ended September 30, 2017 consist of the operations up to the date of close, February 28, 2017. (2) Interest expense allocated to discontinued operations consists of the pro-rata For the nine months ended September 30, 2017 the loss from discontinued operations includes amortization and depreciation of nil and stock-based compensation of nil (three and nine months ended September 30, 2016 — amortization and depreciation of $11.7 and $34.7, respectively and stock-based compensation of $0.8 and $2.3, respectively). The Mobile business unit incurred capital expenditures of $1.2 for the nine months ended September 30, 2017 (three and nine months ended September 30, 2016 — $2.2 and $2.9, respectively). Gain on disposal The Company recorded a gain on disposal of $7.9 in the first nine months of 2017 consisting of the fair value of consideration received of $378.0, less the carrying value of net assets of $362.9 (which includes cash divested of $30.8), costs to sell incurred in the first quarter of 2017 of $2.6 and liabilities for representations, warranties and indemnifications of $4.6, as described below. The fair value of consideration received of $378.0 consisted of cash proceeds of $351.1 received on February 28, 2017, proceeds from the net working capital and other closing adjustments of $16.6, received in May 2017, and the fair value of the non-interest Representations, warranties and indemnifications The Company has provided the buyer with certain representations, warranties and indemnifications relating to the operations of the Mobile business unit, in particular relating to income and sales taxes. As a result, the Company retained a liability at closing of $4.6, primarily for certain sales tax liabilities and uncertain tax positions relating to the Mobile business unit.

NET INVESTMENT IN SALES-TYPE LE

NET INVESTMENT IN SALES-TYPE LEASES	9 Months Ended
	Sep. 30, 2017
NET INVESTMENT IN SALES-TYPE LEASES	5. NET INVESTMENT IN SALES-TYPE LEASES Net investment in sales-type leases represents the value of sales-type leases held primarily in the U.S. The Company currently sells the rental payments due to the Company from some of the sales-type leases. 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 September 30, 2017 December 31, 2016 Gross Allowance Net Gross Allowance Net Lease balances included in accounts receivable $ 3.9 $ (1.0 ) $ 2.9 $ 4.7 $ (1.0 ) $ 3.7 Current portion of investment in sales-type leases 4.6 (0.1 ) 4.5 6.0 (0.2 ) 5.8 Non-current 5.1 (0.2 ) 4.9 6.9 (0.2 ) 6.7 Total unsold sales-type leases (recorded as assets, net, on the consolidated balance sheets) 13.6 (1.3 ) 12.3 17.6 (1.4 ) 16.2 Sold rental payments remaining unbilled 34.2 (1.1 ) (1) 33.1 39.6 (1.3 ) (1) 38.3 Total of sales-type leases unsold and sold $ 47.8 $ (2.4 ) $ 45.4 $ 57.2 $ (2.7 ) $ 54.5 (1) Allowance for sold rental payments is recorded as a lease recourse liability and included in other non-current 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, 2017, the Company sold rental payments of $2.2 and $9.2, respectively, and recorded gains on sale of those rental payments of $0.3 and $1.2, respectively (three and nine months ended September 30, 2016—sold $3.2 and $12.1, respectively and recorded gains of $0.5 and $1.9, 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, 2017 Not past due 1-90 days Greater than Total past Total sales-type Lease balances included in accounts receivable $ 2.1 $ 0.8 $ 1.0 $ 1.8 $ 3.9 Investment in sold and unsold sales-type lease 38.1 5.3 0.5 5.8 43.9 Total gross sales-type leases 40.2 6.1 1.5 7.6 47.8 Allowance (0.9 ) (0.5 ) (1.0 ) (1.5 ) (2.4 ) Total net sales-type leases $ 39.3 $ 5.6 $ 0.5 $ 6.1 $ 45.4 Aging Analysis as of December 31, 2016 Not past due 1-90 days Greater than Total past Total sales-type Lease balances included in accounts receivable $ 2.0 $ 1.7 $ 1.0 $ 2.7 $ 4.7 Investment in sold and unsold sales-type lease 43.5 8.9 0.1 9.0 52.5 Total gross sales-type leases 45.5 10.6 1.1 11.7 57.2 Allowance (1.1 ) (0.8 ) (0.8 ) (1.6 ) (2.7 ) Total net sales-type leases $ 44.4 $ 9.8 $ 0.3 $ 10.1 $ 54.5 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 amount of gross sales-type leases individually and collectively evaluated for impairment is as follows: September 30, 2017 December 31, 2016 Individually evaluated for impairment Sales-type leases individually evaluated for impairment, gross $ 2.8 $ 3.2 Allowance against sales-type leases individually evaluated for impairment (1.4 ) (1.4 ) Sales-type leases individually evaluated for impairment, net $ 1.4 $ 1.8 Collectively evaluated for impairment Sales-type leases collectively evaluated for impairment, gross $ 45.0 $ 54.0 Allowance against sales-type leases collectively evaluated for impairment (1.0 ) (1.3 ) Sales-type leases collectively evaluated for impairment, net $ 44.0 $ 52.7

INVENTORIES

INVENTORIES	9 Months Ended
	Sep. 30, 2017
INVENTORIES	6. INVENTORIES September 30, 2017 December 31, 2016 Raw materials $ 7.0 $ 7.3 Finished goods (1) 103.1 69.7 Service inventory 7.3 6.4 Less: provision for excess and obsolete inventory (1) (10.5 ) (8.5 ) $ 106.9 $ 74.9 (1) At September 30, 2017, finished goods are recorded net of approximately $11.4 of historical inventory provision remaining from acquisitions, as discussed in note 3 of the Annual Financial Statements (December 31, 2016 – $11.5). 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, 2017
OTHER CURRENT ASSETS	7. OTHER CURRENT ASSETS September 30, 2017 December 31, 2016 Prepaid expenses and deferred charges $ 40.3 $ 26.0 Unbilled receivables 4.9 5.3 Due from related parties (note 10) 0.2 0.3 Income tax receivable 12.6 10.5 Other receivables 22.0 14.7 Restricted cash 1.6 0.9 $ 81.6 $ 57.7

IDENTIFIABLE INTANGIBLE ASSETS

IDENTIFIABLE INTANGIBLE ASSETS	9 Months Ended
	Sep. 30, 2017
IDENTIFIABLE INTANGIBLE ASSETS	8. IDENTIFIABLE INTANGIBLE ASSETS September 30, 2017 December 31, 2016 Cost Accumulated Net Cost Accumulated Net Developed technology $ 307.7 $ (109.0 ) $ 198.7 $ 169.9 $ (87.3 ) $ 82.6 Customer relationships 215.7 (8.7 ) 207.0 17.2 (6.6 ) 10.6 Patents, trademarks and other 35.5 (30.4 ) 5.1 34.6 (27.4 ) 7.2 $ 558.9 $ (148.1 ) $ 410.8 $ 221.7 $ (121.3 ) $ 100.4

ACCOUNTS PAYABLE AND ACCRUED LI

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES	9 Months Ended
	Sep. 30, 2017
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES	9. ACCOUNTS PAYABLE AND ACCRUED LIABILITIES September 30, 2017 December 31, 2016 Trade payables $ 67.3 $ 45.5 Employee-related payables 56.7 39.6 Accrued liabilities 111.3 75.5 Restructuring, warranty and other provisions 25.6 18.9 Due to related parties (note 10) 1.0 0.8 Other payables 30.6 20.3 $ 292.5 $ 200.6

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	9 Months Ended
	Sep. 30, 2017
RELATED PARTY TRANSACTIONS	10. 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, 2017, Mitel recorded lease expense for base rent and operating costs of $1.1 and $3.5, respectively (three and nine months ended September 30, 2016—$1.2 and $3.5, 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 $0.1 and $0.8, respectively, for the three months ended September 30, 2017 (three months ended September 30, 2016—$0.2 and $0.7, respectively) and were $0.5 and $2.9, respectively, for the nine months ended September 30, 2017 (nine months ended September 30, 2016—$1.1 and $2.4, respectively). The amounts receivable and payable as a result of all of the above transactions are included in note 7 and note 9, respectively.

LONG-TERM DEBT

LONG-TERM DEBT	9 Months Ended
	Sep. 30, 2017
LONG-TERM DEBT	11. LONG-TERM DEBT September 30, 2017 December 31, 2016 Term Loan, five-year term, maturing March 2022 $ 146.3 $ — Incremental Term Loan, six-year 300.0 — Revolving credit facility, maturing March 2022 190.0 — Term loan, repaid in March 2017 — 591.6 Unamortized original issue discount (1.5 ) (4.7 ) Unamortized debt issue costs (11.3 ) (12.6 ) Capital leases 8.8 11.7 632.3 586.0 Less: current portion (16.5 ) (38.9 ) $ 615.8 $ 547.1 The senior credit facilities consist of an initial $150.0 term loan (“Term Loan”), a $300.0 incremental term loan (“Incremental Term Loan”) and a $350.0 revolving facility (together, the “2017 Credit Facilities”). Our prior credit facilities (the “April 2015 Credit Facilities”) were repaid in March 2017 in conjunction with the March 2017 refinancing, as described below. 2017 Credit Facilities On March 9, 2017, Mitel refinanced its senior secured credit facilities. The credit facilities were initially comprised of a $150.0 Term Loan and a $350.0 revolving facility. Proceeds of $150.0 from the Term Loan along with amounts initially drawn on the revolving facility of $95.0 and cash on hand, were used to repay the remaining principal and accrued interest outstanding under the prior credit facilities, as well as fees and expenses related to the new financing. On September 25, 2017, Mitel amended its senior secured credit facilities to allow for a $300.0 Incremental Term Loan. The $300.0 Incremental Term Loan, along with amounts drawn on the revolving credit facility and cash on hand from the combined company were used to finance the acquisition of ShoreTel, as described in note 3. The amendment also adjusted, among other items, the maximum Consolidated Total Net Leverage Ratio, as defined below, and the applicable margin on the term loan and revolving credit facility based on the Consolidated Total Net Leverage Ratio. Costs incurred in March 2017 relating to the Term Loan were $2.0 and are recorded net against long-term debt and are amortized over the term of the Term Loan. Costs incurred in March 2017 of $4.6 relating to the revolving facility are recorded as other non-current The Term Loan, Incremental Term Loan and revolving credit facility bear interest at LIBOR plus an applicable margin or, at the option of the Company, a base rate plus an applicable margin. The Term Loan and revolving credit facility mature in March 2022 and the Incremental Term Loan matures in September 2023. The revolving credit facility also has an undrawn commitment fee. The applicable margin on LIBOR borrowings under the Incremental Term Loan is 3.75% and LIBOR has a floor of 1.00%. The applicable margin and the undrawn commitment fee on the revolving credit facility and the applicable margin on the Term Loan are based on the Consolidated Total Net Leverage Ratio (the “Leverage Ratio”), as defined in the amended credit facility (the ratio of Consolidated Total Indebtedness, net of up to $50.0 of unrestricted cash, to the trailing twelve months Consolidated EBITDA, as defined in the amended credit facility), and are as follows: Consolidated Total Net Leverage Ratio Commitment Fee Applicable Margin Less than 1.25 0.25 % 1.75 % Greater than or equal to 1.25 but less than 1.75 0.25 % 2.00 % Greater than or equal to 1.75 but less than 2.25 0.30 % 2.25 % Greater than or equal to 2.25 but less than 2.75 0.35 % 2.50 % Greater than or equal to 2.75 but less than 3.25 0.35 % 3.00 % Greater than or equal to 3.25 0.40 % 3.25 % The Company is required to make principal repayments on the Term Loan of $1.9 per quarter from June 2017 to March 2018, $2.8 per quarter from June 2018 to March 2020 and $3.8 per quarter from June 2020 to December 2021. The Company is required to make principal repayments on the Incremental Term Loan of $0.8 per quarter until maturity. In addition, when the consolidated Total Net Leverage Ratio is above 2.00, the Company is required to make annual principal repayments on the Term Loan and Incremental Term Loan based on a percentage of excess cash flow (as defined in the 2017 Credit Facilities). The annual excess cash flow repayment is required to be paid within 100 days of the end of the fiscal year. The first annual excess cash flow payment is required to be paid within 100 days of December 31, 2018. The Term Loan can be repaid without premium or penalty. The Incremental Term Loan can be repaid without premium or penalty anytime after March 25, 2018. Prior to March 25, 2018, the Incremental Term Loan can be repaid with a penalty of 1% of principal where the repayment was due to a refinancing at a lower effective rate. The 2017 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 2017 Credit Facilities. The 2017 Credit Facilities, as amended, contain affirmative and negative covenants, including: (a) periodic financial reporting requirements, (b) a maximum Leverage Ratio and a minimum Interest Coverage Ratio (the ratio of Consolidated EBITDA to Consolidated Interest Expense, both as defined in the credit facility) (c) limitations on the incurrence of subsidiary indebtedness and also the borrowers themselves, (d) limitations on liens, (e) limitations on investments, and (f) limitations on the payment of dividends and repurchases of shares. The Company was in compliance with these covenants at September 30, 2017. The maximum Leverage Ratio is as follows: Fiscal Quarters Ending Maximum Consolidated Leverage Ratio March 31, 2017 through June 30, 2017 3.50 July 1, 2017 through June 30, 2018 4.25 July 1, 2018 through September 30, 2018 3.75 October 1, 2018 through December 31, 2018 3.50 January 1, 2019 and thereafter 3.25 The maximum Leverage Ratio and actual Leverage Ratio are as follows: Period Ending Maximum Actual March 31, 2017 3.50 1.17 June 30, 2017 3.50 1.32 September 30, 2017 4.25 3.52 The minimum Interest Coverage Ratio throughout the term of the credit facility is 3.00. The Interest Coverage Ratio at September 30, 2017 was 7.53. Other debt prepayments In March 2017, prior to the refinancing, the Company repaid $338.1 on its prior credit facilities using proceeds from the divestiture of the Mobile business unit, as described in note 4. In addition, in January 2017 the Company made prepayments of $22.6 on its term loan. In the first quarter of 2017, the Company expensed $18.0 of unamortized debt issue costs and unamortized original issue discount relating to the prepayments and the full repayment of the prior credit facilities, as described above. In 2016, Mitel made prepayments on its term loan of $25.0 in January, $15.0 in March, $13.6 in June and $11.5 in July and recorded debt retirement costs of $1.3, $0.4 and $0.4 in the first, second and third quarter of 2016, respectively, for the write-off pro-rata

PENSION PLANS

PENSION PLANS	9 Months Ended
	Sep. 30, 2017
PENSION PLANS	12. 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 defined benefit pension plan in Switzerland. At September 30, 2017, the net pension liability was $148.7 (December 31, 2016—$145.5). The Company’s net periodic benefit cost was as follows: Three Months Ended September 30 Nine Months Ended September 30 2017 2016 2017 2016 Defined contribution plans Contribution expense $ 2.7 $ 2.6 $ 8.5 $ 9.2 Defined benefit plans Current service cost 0.6 0.8 1.7 2.1 Interest cost 2.2 2.6 6.4 8.1 Expected return on plan assets (2.4 ) (2.6 ) (6.9 ) (7.9 ) Recognized actuarial loss (1) 0.8 0.6 2.5 1.7 Total periodic benefit cost, net $ 3.9 $ 4.0 $ 12.2 $ 13.2 (1) Recognized actuarial loss represents the amortization of unrecognized actuarial loss out of accumulated other comprehensive loss into operating expenses, primarily selling, general and administrative expense.

COMMITMENTS, GUARANTEES AND CON

COMMITMENTS, GUARANTEES AND CONTINGENCIES	9 Months Ended
	Sep. 30, 2017
COMMITMENTS, GUARANTEES AND CONTINGENCIES	13. COMMITMENTS, GUARANTEES AND CONTINGENCIES Intellectual Property Indemnification Obligations The Company enters, on a regular basis, into agreements 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 legal proceedings, claims and potential claims arising in the normal course of business. The Company’s management and legal counsel estimate 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 Interim Financial Statements. 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, the Company has provided for the minimum amount of the range. Letters of Credit and Guarantees Letters of credit, financial guarantees and other similar instruments are reviewed regularly, 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 $5.9 at September 30, 2017 (December 31, 2016 — $6.2). 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 at September 30, 2017 and December 31, 2016.

SHARE CAPITAL

SHARE CAPITAL	9 Months Ended
	Sep. 30, 2017
SHARE CAPITAL	14. SHARE CAPITAL Share Capital At September 30, 2017 and December 31, 2016, 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. In March 2017, the Company’s board of directors authorized a common share buyback program. In a filing with the Toronto Stock Exchange (the “TSX”), the TSX has accepted the company’s Notice of Intention to Make a Normal Course Issuer Bid (the “Notice”). Pursuant to the Notice, Mitel may purchase up to 7.8 million Mitel common shares (the “Buyback Program”), representing approximately 10% of its public float. Mitel may purchase its common shares, from time to time, if it believes that the market price of its common shares is attractive and that the purchase would be an appropriate use of corporate funds and in the best interests of the Company. Common shares purchased pursuant to the Buyback Program will be cancelled. The Buyback Program commenced on March 9, 2017 and will terminate no later than March 8, 2018. For the three and nine months ended September 30, 2017, Mitel repurchased and cancelled nil and 4.9 million common shares, respectively, at a total cost of nil and $35.7, respectively. For the year-ended December 31, 2016, Mitel did not repurchase any of its common shares. Stock Options Following is a summary of the Company’s stock option activity (in millions, except per option amounts): 2017 2016 Number of Options Weighted Average Exercise Price per Option Number of Options Weighted Average Exercise Price per Option Balance, beginning of first quarter 8.3 $ 7.01 9.4 $ 6.97 Granted — (1) $ 6.59 0.8 $ 7.17 Exercised (0.3 ) $ 4.07 (0.1 ) $ 4.70 Forfeited (0.3 ) $ 8.31 (0.1 ) $ 8.27 Expired — (1) $ 8.98 (0.5 ) $ 5.42 Balance, end of first quarter 7.7 $ 7.03 9.5 $ 7.09 Granted 0.1 $ 6.47 0.1 $ 6.74 Exercised (0.3 ) $ 4.10 (0.2 ) $ 4.94 Forfeited — (1) $ 8.68 (0.4 ) $ 8.74 Expired (0.6 ) $ 9.01 (0.1 ) $ 8.79 Balance, end of second quarter 6.9 $ 6.96 8.9 $ 7.07 Granted — $ — — (1) $ 8.12 Exercised (1.6 ) $ 5.08 (0.2 ) $ 3.86 Forfeited — (1) $ 8.92 — (1) $ 8.36 Expired (0.6 ) $ 8.57 (0.2 ) $ 9.63 Balance, end of third quarter 4.7 $ 7.35 8.5 $ 7.04 Number of options exercisable September 30, 3.4 $ 7.10 5.7 $ 6.55 (1) Number of options is less than 0.1 for the period. Restricted Stock Units In the three and nine months ended September 30, 2017, the Company granted 0.4 million and 2.0 million restricted stock units (“RSUs”), respectively, and 0.2 million and 0.9 million RSUs vested, respectively (three and nine months ended September 30, 2016 — granted nil and 1.8 million, respectively, and vested 0.2 million and 0.7 million, respectively). At September 30, 2017, 3.7 million RSUs were outstanding (December 31, 2016 – 3.1 million). Performance Share Units In March 2017, the Company granted 0.4 million performance share units (“PSUs”). PSUs are convertible into common stock to the extent that the performance target is met. The performance target for PSUs is a cumulative annual growth rate (“CAGR”) of Mitel stock traded on the NASDAQ stock exchange over the term of the PSU. If the CAGR is less than 10%, then PSUs do not vest. If the CAGR is greater than 25%, the PSUs vest at a ratio of 2 common stock for each PSU. For CAGRs from 10% to 25%, the PSUs vest at ratio of between 0.5 and 2.0 common stocks for each PSU, depending on the CAGR. PSUs have a term of three years. At September 30, 2017, 0.4 million PSUs were outstanding (December 31, 2016 – nil). Equity Incentive Plans In the second quarter of 2017, the 2017 Omnibus Incentive Plan (the “2017 Plan”) was approved by the Company’s shareholders. The 2017 Plan permits grants of stock options, deferred share units, restricted stock units, performance share units and other stock-based awards, generally under similar conditions as the 2014 Equity Incentive Plan, as described in note 16 to the Annual Financial Statements. The aggregate number of common shares that may be issued for all purposes pursuant to the 2017 Plan must not exceed 9.0 million common shares. Common shares subject to outstanding awards under the 2017 Plan which lapse, expire or are forfeited or terminated will, subject to plan limitations, again become available for grants under the 2017 Plan. The number of stock-based awards available for grant under the Company’s 2017 Plan at September 30, 2017 was 8.6 million (December 31, 2016—2.7 million available for grant under the 2014 Equity Incentive Plan).

WARRANTS

WARRANTS	9 Months Ended
	Sep. 30, 2017
WARRANTS	15. WARRANTS The following table outlines the carrying value of warrants outstanding: September 30, 2017 December 31, 2016 Warrants issued in connection with government funding (1) $ 39.1 $ 39.1 (1) At September 30, 2017, there were 2.48 million warrants outstanding that were issued in connection with government funding (December 31, 2016—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, 2017
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING	16. 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 2017 2016 2017 2016 Weighted average common shares outstanding, basic 118.9 121.7 120.9 121.3 Dilutive effect of stock options — 1.4 — 1.5 Dilutive effect of RSUs — 0.3 — 0.2 Dilutive effect of warrants — 2.5 — 2.5 Weighted average common shares outstanding, diluted 118.9 125.9 120.9 125.5 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) 2017 2016 2017 2016 Stock options 3.2 4.7 3.9 5.2 RSUs 0.7 1.5 1.0 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) 2017 2016 2017 2016 Stock options 1.5 — 2.6 — RSUs 3.0 — 2.6 — Warrants 2.5 — 2.5 — Additionally, for the three and nine months ended September 30, 2017, 0.4 million and 0.4 million PSUs, respectively, which could potentially dilute 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 (three and nine months ended September 30, 2016 – nil and nil, respectively).

SPECIAL CHARGES AND RESTRUCTURI

SPECIAL CHARGES AND RESTRUCTURING COSTS	9 Months Ended
	Sep. 30, 2017
SPECIAL CHARGES AND RESTRUCTURING COSTS	17. SPECIAL CHARGES AND RESTRUCTURING COSTS Special charges and restructuring costs of $35.7 were recorded in the three months ended September 30, 2017. The costs consisted of $17.2 of employee-related charges, $0.2 of facility-reduction related charges, $18.3 of integration-related charges and acquisition-related charges. The employee-related charges consisted of termination and related costs in connection with headcount reductions of approximately 75 people, primarily in Europe and North America. Integration-related charges include professional fees and incidental costs relating to the integrations of acquisitions. Acquisition-related charges consist primarily of legal and advisory fees incurred in connection with the acquisition of ShoreTel, as described in note 3. Special charges and restructuring costs of $9.9 were recorded in the three months ended June 30, 2017. The costs consisted of $7.8 of employee-related charges, $0.2 of facility-reduction related charges, $1.9 of integration-related charges and acquisition-related charges. The employee-related charges consisted of termination and related costs in connection with headcount reductions of approximately 125 people, primarily in Europe and North America. Integration-related charges include professional fees and incidental costs relating to the integrations of acquisitions. Acquisition-related charges consist primarily of legal and advisory fees incurred. Special charges and restructuring costs of $10.8 were recorded in the three months ended March 31, 2017. The costs consisted of $2.7 of employee-related charges, $0.1 of facility-reduction related charges, $8.0 of integration-related charges and acquisition-related charges. The employee-related charges consisted of termination and related costs in connection with headcount reductions of approximately 35 people, primarily in Europe and North America. Integration-related charges include professional fees and incidental costs relating to the integrations of acquisitions. Acquisition-related charges consist primarily of legal and advisory fees incurred. Special charges and restructuring costs of $20.8 were recorded in the three months ended September 30, 2016. The costs consisted of $4.1 of employee-related charges, $0.8 of facility-reduction related charges, $4.0 of integration-related charges and $11.9 of acquisition-related charges. The employee-related charges consisted of termination and related costs in connection with headcount reductions of approximately 40 people, primarily in North America. Integration-related charges include professional fees and incidental costs relating to the integrations of recent acquisitions. Acquisition-related charges consisted primarily of legal and advisory fees, including termination payments incurred relating to the terminated acquisition of Polycom. In connection with the termination, the Company received a termination fee of $60.0 from Polycom, which is recorded separately in the consolidated statement of operations and is further described in note 21. Special charges and restructuring costs of $23.6 were recorded in the three months ended June 30, 2016. The costs consisted of $6.5 of employee-related charges, $0.2 of facility-reduction related charges, $5.6 of integration-related charges and $11.3 of acquisition-related charges. The employee-related charges consisted of termination and related costs in connection with headcount reductions of approximately 18 people, primarily in Europe and North America. Integration-related charges include professional fees and incidental costs relating to the integrations of acquisitions. Acquisition-related charges consisted primarily of legal and advisory fees incurred related to the terminated acquisition of Polycom, as described in note 28 to the Annual Financial Statements. Special charges and restructuring costs of $13.4 were recorded in the three months ended March 31, 2016. The costs consisted of $4.9 of employee-related charges, $0.3 of facility-reduction related charges, $4.1 of integration-related charges and $4.1 of acquisition-related charges. The employee-related charges consisted of termination and related costs in connection with headcount reductions of approximately 25 people, primarily in Europe and North America. Integration-related charges include professional fees and incidental costs relating to the integrations of acquisitions. Acquisition-related charges consisted primarily of legal and advisory fees incurred related to the terminated acquisition of Polycom, as described in note 28 to the Annual Financial Statements. At September 30, 2017, the workforce reduction liability of $14.4 and the current portion of the lease termination obligation liability of $2.9 are included in accounts payable and accrued liabilities, with the remaining non-current non-current The following table summarizes the change in provision: Description Workforce Reduction Facility-Reduction Related, Including Lease Termination Obligations Total Balance of provision as of December 31, 2015 $ 13.7 $ 5.6 $ 19.3 Charges 4.9 0.3 5.2 Cash payments (3.8 ) (0.8 ) (4.6 ) Balance of provision as of March 31, 2016 $ 14.8 $ 5.1 $ 19.9 Charges 6.5 0.2 6.7 Cash payments (8.1 ) (0.6 ) (8.7 ) Balance of provision as of June 30, 2016 $ 13.2 $ 4.7 $ 17.9 Charges 4.1 0.8 4.9 Cash payments (5.7 ) (0.6 ) (6.3 ) Balance of provision as of September 30, 2016 $ 11.6 $ 4.9 $ 16.5 Charges 5.0 0.3 5.3 Cash payments (7.9 ) (0.7 ) (8.6 ) Balance of provision as of December 31, 2016 $ 8.7 $ 4.5 $ 13.2 Charges 2.7 0.1 2.8 Cash payments (3.8 ) (0.5 ) (4.3 ) Balance of provision as of March 31, 2017 $ 7.6 $ 4.1 $ 11.7 Charges 7.8 0.2 8.0 Cash payments (7.6 ) (0.3 ) (7.9 ) Balance of provision as of June 30, 2017 $ 7.8 $ 4.0 $ 11.8 Charges 17.2 0.2 17.4 Cash payments (10.6 ) (0.2 ) (10.8 ) Balance of provision as of September 30, 2017 $ 14.4 $ 4.0 $ 18.4

SEGMENT INFORMATION

SEGMENT INFORMATION	9 Months Ended
	Sep. 30, 2017
SEGMENT INFORMATION	18. SEGMENT INFORMATION The Company’s Chief Executive Officer (“CEO”) has been identified as the chief operating decision maker. The CEO evaluates the performance of the segments and allocates resources based on information provided by the Company’s internal management system. During the third quarter of 2017, in conjunction with the acquisition of ShoreTel, the Company reorganized its business. As a result, the CEO now evaluates performance and allocates resources based on two key business units, Enterprise and Cloud. Therefore, beginning in the third quarter of 2017, the Company has reported its financial performance based on the new segments, Enterprise and Cloud, as described below. Prior period amounts have been presented on the same basis. The primary financial measures of performance of the segments are revenues and gross margin, which includes segment revenues less cost of revenues. The Company does not allocate operating expenses to its segments as management does not use this information to measure the performance of the individual operating segments. In addition, total asset and long-lived asset information by segment is not presented because the CEO does not use such segmented measures to allocate resources and assess performance. The accounting policies of reported segments are the same as those described in the summary of significant accounting policies. Revenue is generally directly attributed to the segments. Cost of revenue is directly charged to the segments in most cases and, in certain cases, on a pro-rata The Enterprise 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 center applications that are deployed on the customer’s premise. Premise-based sales are 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 and billed on monthly recurring basis. The Cloud segment is comprised of a retail offering and a wholesale offering. The retail cloud offering 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 as monthly recurring fees. The following table presents Enterprise product and service, and Cloud recurring revenues and gross margin for the Company’s operating segment: Three Months Ended September 30 Nine Months Ended September 30 2017 2016 2017 2016 Revenues Enterprise – Product $ 142.8 $ 141.4 $ 421.7 $ 438.3 Enterprise – Services 62.7 64.1 183.6 204.2 Total Enterprise revenues 205.5 205.5 605.3 642.5 Cloud – Recurring 36.0 29.0 97.9 85.3 Total revenues $ 241.5 $ 234.5 $ 703.2 $ 727.8 Gross Margin Enterprise – Product $ 81.9 $ 80.2 $ 236.8 $ 253.3 Enterprise – Services 33.0 29.7 95.6 96.0 Total Enterprise gross margin 114.9 109.9 332.4 349.3 Cloud – Recurring 18.1 14.8 49.2 42.4 Total gross margin $ 133.0 $ 124.7 $ 381.6 $ 391.7 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 2017 2016 2017 2016 Canada $ 6.5 $ 7.3 $ 21.2 $ 23.0 United States 106.9 103.8 306.5 324.6 Rest of Americas 2.9 3.3 8.3 9.0 Americas 116.3 114.4 336.0 356.6 Germany 22.9 27.7 68.8 81.0 U.K. 24.7 22.8 70.2 71.8 Rest of EMEA 69.3 62.1 204.2 195.5 EMEA 116.9 112.6 343.2 348.3 Asia-Pacific 8.3 7.5 24.0 22.9 $ 241.5 $ 234.5 $ 703.2 $ 727.8

SUPPLEMENTARY CASH FLOW INFORMA

SUPPLEMENTARY CASH FLOW INFORMATION	9 Months Ended
	Sep. 30, 2017
SUPPLEMENTARY CASH FLOW INFORMATION	19. SUPPLEMENTARY CASH FLOW INFORMATION Three Months Ended September 30 Nine Months Ended September 30 2017 2016 2017 2016 Changes in non-cash Accounts receivable and sales-type lease receivables $ 10.0 $ 5.6 $ 60.2 $ 37.8 Inventories (3.9 ) (3.8 ) (11.0 ) (4.0 ) Other current assets (2.9 ) (4.8 ) (5.6 ) (19.0 ) Other non-current (0.8 ) (1.4 ) (1.9 ) (1.4 ) Accounts payable and accrued liabilities 28.8 (29.0 ) (11.5 ) (6.7 ) Deferred revenue (2.9 ) (2.9 ) (1.8 ) (10.9 ) Other non-current 1.1 (2.3 ) (0.2 ) (4.8 ) Change in pension liability (0.8 ) (0.4 ) (3.6 ) (3.0 ) $ 28.6 $ (39.0 ) $ 24.6 $ (12.0 ) Other items: Interest payments $ 3.4 $ 8.9 $ 16.2 $ 27.7 Income tax payments $ 1.2 $ 3.5 $ 5.6 $ 11.0 Income tax refunds $ 4.4 $ — $ 4.9 $ — Property and equipment additions financed through capital lease $ — $ 3.0 $ 0.8 $ 6.9 Cash and cash equivalents at September 30, 2017 consisted of cash of $54.3 (December 31, 2016—$96.2) and cash equivalents of $1.1 (December 31, 2016—$1.1).

HEDGING ACTIVITIES

HEDGING ACTIVITIES	9 Months Ended
	Sep. 30, 2017
HEDGING ACTIVITIES	20. 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, 2017, to hedge the fair value of certain assets and liabilities, the Company held forward contracts to buy Canadian dollars and U.S. dollars at fixed rates on a notional amount of $10.4, and $59.3 U.S. dollars, respectively and to sell Australian dollars, Euros, Swiss francs and Norwegian kroner at fixed rates on a notional amount of $4.9, $37.5, $25.2 and $2.1 U.S. dollars, respectively. At September 30, 2017, all of the Company’s outstanding forward contracts used for fair value hedging had a term of one month or less. At September 30, 2017, the Company had a net unrealized gain from fair value adjustments on the outstanding forward contracts used for fair value hedging of $0.8. At December 31, 2016, to hedge the fair value of certain assets and liabilities, the Company held forward contracts to buy Canadian dollars, Indian rupee, Indonesia rupiah and U.S. dollars at fixed rates on a notional amount of $7.8, $7.4, $3.8 and $81.4 U.S. dollars, respectively and to sell Australian dollars, Euros, Swiss francs, Singapore dollars and Swedish kronor at fixed rates on a notional amount of $8.4, $54.8, $10.2, $10.3 and $16.7 U.S. dollars, respectively. At December 31, 2016, all of the Company’s outstanding forward contracts used for fair value hedging had a term of one month or less. At December 31, 2016, the Company had a net unrealized loss on fair value adjustments on the outstanding forward contracts used for fair value hedging of $0.2.

INCOME FROM TERMINATION FEE REC

INCOME FROM TERMINATION FEE RECEIVED	9 Months Ended
	Sep. 30, 2017
INCOME FROM TERMINATION FEE RECEIVED	21. INCOME FROM TERMINATION FEE RECEIVED On April 15, 2016, Mitel and Polycom, Inc. (“Polycom”) (NYSE:PLCM) entered into a definitive merger agreement under which Mitel agreed to acquire all of the outstanding shares of Polycom common stock in a cash and stock transaction. On July 7, 2016, Polycom’s board of directors notified Mitel that it had received a binding offer from a third party to acquire Polycom and that Polycom’s board of directors concluded that such offer constituted a “Company Superior Proposal” under its merger agreement with Mitel. Later on July 7, 2016, Mitel waived its right to renegotiate the consideration payable to Polycom stockholders under the merger agreement. On July 8, 2016, Polycom paid Mitel a termination fee of $60.0 and the merger agreement was terminated. The termination fee was recorded as Income from Termination Fee Received on the consolidated statement of operations in the third quarter of 2016.

SIGNIFICANT ACCOUNTING POLICI29

SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2017
Accounting pronouncements adopted in 2017	a) Accounting pronouncements adopted in 2017 Stock-based compensation In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09 paid-in Statement of cash flows In August 2016, the FASB issued ASU 2016-15 Simplifying the test for goodwill impairment In January 2017, the FASB issued ASU 2017-04
Accounting pronouncements issued but not yet adopted	b) Accounting pronouncements issued but not yet adopted Revenue recognition In May 2014, the FASB issued ASU 2014-09 2015-14, 2016-08 2016-12, 2014-09. 2014-09 The ASU permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the cumulative catch-up Leases In February 2016, the FASB issued ASU 2016-02 right-of-use Credit losses on financial instruments In June 2016, the FASB issued ASU 2016-13 Income statement classification of net pension benefit costs In March 2017, the FASB issued ASU 2017-07 non-service Statement of cash flows – presentation of restricted cash In November 2016, the FASB issued ASU 2016-18

ACQUISITION (Tables)

ACQUISITION (Tables)	9 Months Ended
	Sep. 30, 2017
Preliminary Purchase and Allocation of Purchase Price	The preliminary purchase price and allocation of the purchase price is as follows: September 25, 2017 Net assets: Cash and cash equivalents $ 120.4 Accounts receivable (1) 24.0 Inventories (2) 13.1 Other current assets 12.6 Property and equipment 18.1 Intangible assets – customer relationships (3)(5) 195.9 Intangible assets – developed technology (4)(5) 137.8 Goodwill (5) 202.7 Other non-current 6.2 Accounts payable and accrued liabilities (55.4 ) Current portion of deferred revenue (60.3 ) Long-term portion of deferred revenue (17.9 ) Deferred tax liability (62.1 ) Other non-current (3.7 ) Net assets acquired $ 531.4 Consideration given: Cash paid to ShoreTel shareholders on September 25, 2017 $ 521.0 Cash paid to holders of ShoreTel options and restricted stock units in October 2017 (6) 10.4 Total consideration given $ 531.4 (1) Fair value of accounts receivable consists of gross contractual amounts receivable of $24.5, less best estimate of amounts not expected to be collected of $0.5. (2) Fair value of inventory consists of inventory with a historical cost of $14.7 less a historical provision of $1.6. (3) Intangible assets – customer relationships are expected to be amortized over their estimated useful life of 6 years. (4) Intangible assets – developed technology is expected to be amortized over their estimated useful life of 6 years. (5) Neither the goodwill nor the intangible assets are expected to be deductible for tax purposes. (6) Cash paid to holders of ShoreTel vested, in-the-money
Unaudited ProForma Financial Information	The following unaudited pro-forma Three Months Ended Nine Months Ended 2017 2016 2017 2016 Operations Revenues $ 321.5 $ 319.4 $ 965.4 $ 989.4 Net earnings (loss) $ (59.3 ) $ 0.9 $ (121.0 ) $ (79.1 ) Net earnings (loss) per share $ (0.50 ) $ 0.01 $ (1.00 ) $ (0.65 )

DISCONTINUED OPERATIONS (Tables

DISCONTINUED OPERATIONS (Tables)	9 Months Ended
	Sep. 30, 2017
Schedule of Operations and Classes of Assets and Liabilities of Discontinued Operations	Assets and liabilities held for sale for the Mobile business unit were as follows: December 31, Assets of component held for sale, current: Cash and cash equivalents $ 3.5 Accounts receivable 83.2 Inventories 7.1 Other current assets 27.5 $ 121.3 Assets of component held for sale, non-current: Property and equipment (net) $ 13.8 Identifiable intangible assets (net) 215.3 Goodwill 99.5 Other non-current 3.9 $ 332.5 Liabilities of component held for sale, current: Accounts payable and accrued liabilities $ 43.3 Current portion of deferred revenue 14.6 Current portion of long-term debt – capital leases 0.4 $ 58.3 Liabilities of component held for sale, non-current: Long-term debt – capital leases $ 0.9 Long-term portion of deferred revenue 1.7 Deferred tax liability 14.3 Other non-current 7.9 $ 24.8 Summarized results of operations for the Mobile business unit are as follows: Three Months Ended September 30 Nine Months Ended September 30 2017 2016 2017 (1) 2016 Revenues $ — $ 45.3 $ 8.0 $ 135.3 Cost of revenues — (21.7 ) (6.3 ) (58.7 ) Selling, general and administrative expenses — (7.5 ) (5.5 ) (28.4 ) Research and development expenses — (11.4 ) (8.4 ) (37.1 ) Special charges and restructuring costs — (1.7 ) — (5.8 ) Amortization of acquisition-related intangible assets — (10.1 ) — (30.3 ) Interest expense (2) — (5.5 ) (3.7 ) (16.5 ) Other income — 0.1 — 0.1 Gain on disposal — — 7.9 — Loss from discontinued operations, before income taxes — (12.5 ) (8.0 ) (41.4 ) Income tax recovery — 3.8 6.6 12.2 Comprehensive loss $ — $ (8.7 ) $ (1.4 ) $ (29.2 ) (1) Operating results for the nine months ended September 30, 2017 consist of the operations up to the date of close, February 28, 2017. (2) Interest expense allocated to discontinued operations consists of the pro-rata

NET INVESTMENT IN SALES-TYPE 32

NET INVESTMENT IN SALES-TYPE LEASES (Tables)	9 Months Ended
	Sep. 30, 2017
Sales-Type Leases	The following table provides detail on the sales-type leases: September 30, 2017 December 31, 2016 Gross Allowance Net Gross Allowance Net Lease balances included in accounts receivable $ 3.9 $ (1.0 ) $ 2.9 $ 4.7 $ (1.0 ) $ 3.7 Current portion of investment in sales-type leases 4.6 (0.1 ) 4.5 6.0 (0.2 ) 5.8 Non-current 5.1 (0.2 ) 4.9 6.9 (0.2 ) 6.7 Total unsold sales-type leases (recorded as assets, net, on the consolidated balance sheets) 13.6 (1.3 ) 12.3 17.6 (1.4 ) 16.2 Sold rental payments remaining unbilled 34.2 (1.1 ) (1) 33.1 39.6 (1.3 ) (1) 38.3 Total of sales-type leases unsold and sold $ 47.8 $ (2.4 ) $ 45.4 $ 57.2 $ (2.7 ) $ 54.5 (1) Allowance for sold rental payments is recorded as a lease recourse liability and included in other non-current
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, 2017 Not past due 1-90 days Greater than Total past Total sales-type Lease balances included in accounts receivable $ 2.1 $ 0.8 $ 1.0 $ 1.8 $ 3.9 Investment in sold and unsold sales-type lease 38.1 5.3 0.5 5.8 43.9 Total gross sales-type leases 40.2 6.1 1.5 7.6 47.8 Allowance (0.9 ) (0.5 ) (1.0 ) (1.5 ) (2.4 ) Total net sales-type leases $ 39.3 $ 5.6 $ 0.5 $ 6.1 $ 45.4 Aging Analysis as of December 31, 2016 Not past due 1-90 days Greater than Total past Total sales-type Lease balances included in accounts receivable $ 2.0 $ 1.7 $ 1.0 $ 2.7 $ 4.7 Investment in sold and unsold sales-type lease 43.5 8.9 0.1 9.0 52.5 Total gross sales-type leases 45.5 10.6 1.1 11.7 57.2 Allowance (1.1 ) (0.8 ) (0.8 ) (1.6 ) (2.7 ) Total net sales-type leases $ 44.4 $ 9.8 $ 0.3 $ 10.1 $ 54.5
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, 2017 December 31, 2016 Individually evaluated for impairment Sales-type leases individually evaluated for impairment, gross $ 2.8 $ 3.2 Allowance against sales-type leases individually evaluated for impairment (1.4 ) (1.4 ) Sales-type leases individually evaluated for impairment, net $ 1.4 $ 1.8 Collectively evaluated for impairment Sales-type leases collectively evaluated for impairment, gross $ 45.0 $ 54.0 Allowance against sales-type leases collectively evaluated for impairment (1.0 ) (1.3 ) Sales-type leases collectively evaluated for impairment, net $ 44.0 $ 52.7

INVENTORIES (Tables)

INVENTORIES (Tables)	9 Months Ended
	Sep. 30, 2017
Inventories	September 30, 2017 December 31, 2016 Raw materials $ 7.0 $ 7.3 Finished goods (1) 103.1 69.7 Service inventory 7.3 6.4 Less: provision for excess and obsolete inventory (1) (10.5 ) (8.5 ) $ 106.9 $ 74.9 (1) At September 30, 2017, finished goods are recorded net of approximately $11.4 of historical inventory provision remaining from acquisitions, as discussed in note 3 of the Annual Financial Statements (December 31, 2016 – $11.5). 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, 2017
Other Current Assets	September 30, 2017 December 31, 2016 Prepaid expenses and deferred charges $ 40.3 $ 26.0 Unbilled receivables 4.9 5.3 Due from related parties (note 10) 0.2 0.3 Income tax receivable 12.6 10.5 Other receivables 22.0 14.7 Restricted cash 1.6 0.9 $ 81.6 $ 57.7

IDENTIFIABLE INTANGIBLE ASSETS

IDENTIFIABLE INTANGIBLE ASSETS (Tables)	9 Months Ended
	Sep. 30, 2017
Identifiable Intangible Assets	September 30, 2017 December 31, 2016 Cost Accumulated Net Cost Accumulated Net Developed technology $ 307.7 $ (109.0 ) $ 198.7 $ 169.9 $ (87.3 ) $ 82.6 Customer relationships 215.7 (8.7 ) 207.0 17.2 (6.6 ) 10.6 Patents, trademarks and other 35.5 (30.4 ) 5.1 34.6 (27.4 ) 7.2 $ 558.9 $ (148.1 ) $ 410.8 $ 221.7 $ (121.3 ) $ 100.4

ACCOUNTS PAYABLE AND ACCRUED 36

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)	9 Months Ended
	Sep. 30, 2017
Accounts Payable and Accrued Liabilities	September 30, 2017 December 31, 2016 Trade payables $ 67.3 $ 45.5 Employee-related payables 56.7 39.6 Accrued liabilities 111.3 75.5 Restructuring, warranty and other provisions 25.6 18.9 Due to related parties (note 10) 1.0 0.8 Other payables 30.6 20.3 $ 292.5 $ 200.6

LONG-TERM DEBT (Tables)

LONG-TERM DEBT (Tables)	9 Months Ended
	Sep. 30, 2017
Long Term Debt	September 30, 2017 December 31, 2016 Term Loan, five-year term, maturing March 2022 $ 146.3 $ — Incremental Term Loan, six-year 300.0 — Revolving credit facility, maturing March 2022 190.0 — Term loan, repaid in March 2017 — 591.6 Unamortized original issue discount (1.5 ) (4.7 ) Unamortized debt issue costs (11.3 ) (12.6 ) Capital leases 8.8 11.7 632.3 586.0 Less: current portion (16.5 ) (38.9 ) $ 615.8 $ 547.1
Summary of Consolidated Total Net Leverage Ratio	The applicable margin and the undrawn commitment fee on the revolving credit facility and the applicable margin on the Term Loan are based on the Consolidated Total Net Leverage Ratio (the “Leverage Ratio”), as defined in the amended credit facility (the ratio of Consolidated Total Indebtedness, net of up to $50.0 of unrestricted cash, to the trailing twelve months Consolidated EBITDA, as defined in the amended credit facility), and are as follows: Consolidated Total Net Leverage Ratio Commitment Fee Applicable Margin Less than 1.25 0.25 % 1.75 % Greater than or equal to 1.25 but less than 1.75 0.25 % 2.00 % Greater than or equal to 1.75 but less than 2.25 0.30 % 2.25 % Greater than or equal to 2.25 but less than 2.75 0.35 % 2.50 % Greater than or equal to 2.75 but less than 3.25 0.35 % 3.00 % Greater than or equal to 3.25 0.40 % 3.25 %
Maximum Leverage Ratio	The Company was in compliance with these covenants at September 30, 2017. The maximum Leverage Ratio is as follows: Fiscal Quarters Ending Maximum Consolidated Leverage Ratio March 31, 2017 through June 30, 2017 3.50 July 1, 2017 through June 30, 2018 4.25 July 1, 2018 through September 30, 2018 3.75 October 1, 2018 through December 31, 2018 3.50 January 1, 2019 and thereafter 3.25
Schedule of Maximum Leverage Ratio and Actual Leverage Ratio	The maximum Leverage Ratio and actual Leverage Ratio are as follows: Period Ending Maximum Actual March 31, 2017 3.50 1.17 June 30, 2017 3.50 1.32 September 30, 2017 4.25 3.52

PENSION PLANS (Tables)

PENSION PLANS (Tables)	9 Months Ended
	Sep. 30, 2017
Net Periodic Benefit Cost	The Company’s net periodic benefit cost was as follows: Three Months Ended September 30 Nine Months Ended September 30 2017 2016 2017 2016 Defined contribution plans Contribution expense $ 2.7 $ 2.6 $ 8.5 $ 9.2 Defined benefit plans Current service cost 0.6 0.8 1.7 2.1 Interest cost 2.2 2.6 6.4 8.1 Expected return on plan assets (2.4 ) (2.6 ) (6.9 ) (7.9 ) Recognized actuarial loss (1) 0.8 0.6 2.5 1.7 Total periodic benefit cost, net $ 3.9 $ 4.0 $ 12.2 $ 13.2 (1) Recognized actuarial loss represents the amortization of unrecognized actuarial loss out of accumulated other comprehensive loss into operating expenses, primarily selling, general and administrative expense.

SHARE CAPITAL (Tables)

SHARE CAPITAL (Tables)	9 Months Ended
	Sep. 30, 2017
Stock Option Activity	Following is a summary of the Company’s stock option activity (in millions, except per option amounts): 2017 2016 Number of Options Weighted Average Exercise Price per Option Number of Options Weighted Average Exercise Price per Option Balance, beginning of first quarter 8.3 $ 7.01 9.4 $ 6.97 Granted — (1) $ 6.59 0.8 $ 7.17 Exercised (0.3 ) $ 4.07 (0.1 ) $ 4.70 Forfeited (0.3 ) $ 8.31 (0.1 ) $ 8.27 Expired — (1) $ 8.98 (0.5 ) $ 5.42 Balance, end of first quarter 7.7 $ 7.03 9.5 $ 7.09 Granted 0.1 $ 6.47 0.1 $ 6.74 Exercised (0.3 ) $ 4.10 (0.2 ) $ 4.94 Forfeited — (1) $ 8.68 (0.4 ) $ 8.74 Expired (0.6 ) $ 9.01 (0.1 ) $ 8.79 Balance, end of second quarter 6.9 $ 6.96 8.9 $ 7.07 Granted — $ — — (1) $ 8.12 Exercised (1.6 ) $ 5.08 (0.2 ) $ 3.86 Forfeited — (1) $ 8.92 — (1) $ 8.36 Expired (0.6 ) $ 8.57 (0.2 ) $ 9.63 Balance, end of third quarter 4.7 $ 7.35 8.5 $ 7.04 Number of options exercisable September 30, 3.4 $ 7.10 5.7 $ 6.55 (1) Number of options is less than 0.1 for the period.

WARRANTS (Tables)

WARRANTS (Tables)	9 Months Ended
	Sep. 30, 2017
Carrying Value of Warrants Outstanding	The following table outlines the carrying value of warrants outstanding: September 30, 2017 December 31, 2016 Warrants issued in connection with government funding (1) $ 39.1 $ 39.1 (1) At September 30, 2017, there were 2.48 million warrants outstanding that were issued in connection with government funding (December 31, 2016—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 SHARE41

WEIGHTED AVERAGE COMMON SHARES OUTSTANDING (Tables)	9 Months Ended
	Sep. 30, 2017
Basic and Diluted Weighted Average Common Shares Outstanding as Required 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 2017 2016 2017 2016 Weighted average common shares outstanding, basic 118.9 121.7 120.9 121.3 Dilutive effect of stock options — 1.4 — 1.5 Dilutive effect of RSUs — 0.3 — 0.2 Dilutive effect of warrants — 2.5 — 2.5 Weighted average common shares outstanding, diluted 118.9 125.9 120.9 125.5
Term 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) 2017 2016 2017 2016 Stock options 3.2 4.7 3.9 5.2 RSUs 0.7 1.5 1.0 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) 2017 2016 2017 2016 Stock options 1.5 — 2.6 — RSUs 3.0 — 2.6 — Warrants 2.5 — 2.5 —

SPECIAL CHARGES AND RESTRUCTU42

SPECIAL CHARGES AND RESTRUCTURING COSTS (Tables)	9 Months Ended
	Sep. 30, 2017
Summary of Change in Provision for Special Charges and Restructuring Costs	The following table summarizes the change in provision: Description Workforce Reduction Facility-Reduction Related, Including Lease Termination Obligations Total Balance of provision as of December 31, 2015 $ 13.7 $ 5.6 $ 19.3 Charges 4.9 0.3 5.2 Cash payments (3.8 ) (0.8 ) (4.6 ) Balance of provision as of March 31, 2016 $ 14.8 $ 5.1 $ 19.9 Charges 6.5 0.2 6.7 Cash payments (8.1 ) (0.6 ) (8.7 ) Balance of provision as of June 30, 2016 $ 13.2 $ 4.7 $ 17.9 Charges 4.1 0.8 4.9 Cash payments (5.7 ) (0.6 ) (6.3 ) Balance of provision as of September 30, 2016 $ 11.6 $ 4.9 $ 16.5 Charges 5.0 0.3 5.3 Cash payments (7.9 ) (0.7 ) (8.6 ) Balance of provision as of December 31, 2016 $ 8.7 $ 4.5 $ 13.2 Charges 2.7 0.1 2.8 Cash payments (3.8 ) (0.5 ) (4.3 ) Balance of provision as of March 31, 2017 $ 7.6 $ 4.1 $ 11.7 Charges 7.8 0.2 8.0 Cash payments (7.6 ) (0.3 ) (7.9 ) Balance of provision as of June 30, 2017 $ 7.8 $ 4.0 $ 11.8 Charges 17.2 0.2 17.4 Cash payments (10.6 ) (0.2 ) (10.8 ) Balance of provision as of September 30, 2017 $ 14.4 $ 4.0 $ 18.4

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	9 Months Ended
	Sep. 30, 2017
Enterprise Product and Service, and Cloud Recurring Revenues and Gross Margin for Company's Operating Segment	The following table presents Enterprise product and service, and Cloud recurring revenues and gross margin for the Company’s operating segment: Three Months Ended September 30 Nine Months Ended September 30 2017 2016 2017 2016 Revenues Enterprise – Product $ 142.8 $ 141.4 $ 421.7 $ 438.3 Enterprise – Services 62.7 64.1 183.6 204.2 Total Enterprise revenues 205.5 205.5 605.3 642.5 Cloud – Recurring 36.0 29.0 97.9 85.3 Total revenues $ 241.5 $ 234.5 $ 703.2 $ 727.8 Gross Margin Enterprise – Product $ 81.9 $ 80.2 $ 236.8 $ 253.3 Enterprise – Services 33.0 29.7 95.6 96.0 Total Enterprise gross margin 114.9 109.9 332.4 349.3 Cloud – Recurring 18.1 14.8 49.2 42.4 Total gross margin $ 133.0 $ 124.7 $ 381.6 $ 391.7
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 2017 2016 2017 2016 Canada $ 6.5 $ 7.3 $ 21.2 $ 23.0 United States 106.9 103.8 306.5 324.6 Rest of Americas 2.9 3.3 8.3 9.0 Americas 116.3 114.4 336.0 356.6 Germany 22.9 27.7 68.8 81.0 U.K. 24.7 22.8 70.2 71.8 Rest of EMEA 69.3 62.1 204.2 195.5 EMEA 116.9 112.6 343.2 348.3 Asia-Pacific 8.3 7.5 24.0 22.9 $ 241.5 $ 234.5 $ 703.2 $ 727.8

SUPPLEMENTARY CASH FLOW INFOR44

SUPPLEMENTARY CASH FLOW INFORMATION (Tables)	9 Months Ended
	Sep. 30, 2017
Supplementary Cash Flow Information	Three Months Ended September 30 Nine Months Ended September 30 2017 2016 2017 2016 Changes in non-cash Accounts receivable and sales-type lease receivables $ 10.0 $ 5.6 $ 60.2 $ 37.8 Inventories (3.9 ) (3.8 ) (11.0 ) (4.0 ) Other current assets (2.9 ) (4.8 ) (5.6 ) (19.0 ) Other non-current (0.8 ) (1.4 ) (1.9 ) (1.4 ) Accounts payable and accrued liabilities 28.8 (29.0 ) (11.5 ) (6.7 ) Deferred revenue (2.9 ) (2.9 ) (1.8 ) (10.9 ) Other non-current 1.1 (2.3 ) (0.2 ) (4.8 ) Change in pension liability (0.8 ) (0.4 ) (3.6 ) (3.0 ) $ 28.6 $ (39.0 ) $ 24.6 $ (12.0 ) Other items: Interest payments $ 3.4 $ 8.9 $ 16.2 $ 27.7 Income tax payments $ 1.2 $ 3.5 $ 5.6 $ 11.0 Income tax refunds $ 4.4 $ — $ 4.9 $ — Property and equipment additions financed through capital lease $ — $ 3.0 $ 0.8 $ 6.9

Significant Accounting Polici45

Significant Accounting Policies - Additional Information (Detail) - Accounting Standards Update 2016-09 $ in Millions	Jan. 01, 2017USD ($)
Additional Paid-in Capital
Significant Accounting Policies [Line Items]
Adoption of new accounting standard - cumulative-effect adjustment	$ (5.8)
Retained Earnings
Significant Accounting Policies [Line Items]
Adoption of new accounting standard - cumulative-effect adjustment	$ 5.8

Acquisition - Additional Inform

Acquisition - Additional Information (Detail) - USD ($) $ in Millions	Sep. 25, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017
Business Acquisition [Line Items]
Annual revenues		$ 241.5	$ 234.5	$ 703.2	$ 727.8
Amortization of acquired intangible assets		8.5	$ 9.5	25.7	$ 26.3
ShoreTel, Inc
Business Acquisition [Line Items]
Total consideration given	$ 531.4
Annual revenues						$ 357.8
Amount of revenue included in the Company's results of operations		7.7		7.7
Amortization of acquired intangible assets		0.6		0.6
Amount of net loss included in the Company's results of operations		(4)		(4)
Amortization of intangible assets				$ 13.9
Increase in interest expense		$ 5

Preliminary Purchase and Alloca

Preliminary Purchase and Allocation of Purchase Price (Detail) - USD ($) $ in Millions		Sep. 25, 2017	Sep. 30, 2017	Dec. 31, 2016
Net assets:
Goodwill			$ 549	$ 346.3
ShoreTel, Inc
Net assets:
Cash and cash equivalents		$ 120.4
Accounts receivable	[1]	24
Inventories	[2]	13.1
Other current assets		12.6
Property and equipment		18.1
Goodwill	[3]	202.7
Other non-currentassets		6.2
Accounts payable and accrued liabilities		(55.4)
Current portion of deferred revenue		(60.3)
Long-term portion of deferred revenue		(17.9)
Deferred tax liability		(62.1)
Other non-currentliabilities		(3.7)
Net assets acquired		531.4
Consideration given:
Total consideration given		531.4
ShoreTel, Inc | Employee Stock Option and Restricted Stock Units
Consideration given:
Cash paid	[4]	10.4
ShoreTel, Inc | Common Shares
Consideration given:
Cash paid		521
ShoreTel, Inc | Customer relationships
Net assets:
Intangible assets	[3],[5]	195.9
ShoreTel, Inc | Developed technology
Net assets:
Intangible assets	[3],[6]	$ 137.8
[1]	Fair value of accounts receivable consists of gross contractual amounts receivable of $24.5, less best estimate of amounts not expected to be collected of $0.5.
[2]	Fair value of inventory consists of inventory with a historical cost of $14.7 less a historical provision of $1.6.
[3]	Neither the goodwill nor the intangible assets are expected to be deductible for tax purposes.
[4]	Cash paid to holders of ShoreTel vested, in-the-money options and vested, restricted stock units.
[5]	Intangible assets - customer relationships are expected to be amortized over their estimated useful life of 6 years.
[6]	Intangible assets - developed technology is expected to be amortized over their estimated useful life of 6 years.

Preliminary Purchase and Allo48

Preliminary Purchase and Allocation of Purchase Price (Parenthetical) (Detail) - ShoreTel, Inc $ in Millions	Sep. 25, 2017USD ($)
Business Acquisition [Line Items]
Gross contractual amounts receivable	$ 24.5
Accounts receivable, best estimate of amounts not expected to be collected	0.5
Gross inventory	14.7
Provision for inventory	$ 1.6
Customer relationships
Business Acquisition [Line Items]
Expected useful life of intangible assets	6 years
Developed technology
Business Acquisition [Line Items]
Expected useful life of intangible assets	6 years

Unaudited ProForma Financial In

Unaudited ProForma Financial Information (Detail) - ShoreTel, Inc - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition [Line Items]
Revenues	$ 321.5	$ 319.4	$ 965.4	$ 989.4
Net earnings (loss)	$ (59.3)	$ 0.9	$ (121)	$ (79.1)
Net earnings (loss) per share	$ (0.50)	$ 0.01	$ (1)	$ (0.65)

Discontinued Operations - Addit

Discontinued Operations - Additional Information (Detail) - USD ($)		Feb. 28, 2017	Dec. 18, 2016	May 31, 2017	Sep. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Discontinued Operations [Line Items]
Amortization and depreciation					$ 13,200,000		$ 26,000,000	$ 39,100,000	$ 75,800,000
Stock based compensation					3,100,000		4,300,000	10,800,000	12,500,000
Capital expenditures incurred							3,000,000	800,000	6,900,000
Gain on disposal								7,900,000
Proceeds from net working capital and other closing adjustments								336,900,000
Mobile Business Unit
Discontinued Operations [Line Items]
Cash proceeds			$ 350,000,000
Non-interest bearing promissory note			$ 35,000,000
Transaction closing date			Feb. 28, 2017
Promissory note term			10 years
Amortization and depreciation							11,700,000	0	34,700,000
Stock based compensation							800,000	0	2,300,000
Capital expenditures incurred							$ 2,200,000	1,200,000	$ 2,900,000
Mobile Business Unit | Discontinued Operations, Held-for-sale
Discontinued Operations [Line Items]
Cash proceeds		$ 351,100,000
Gain on disposal	[1]							7,900,000
Fair value of consideration received					378,000,000			378,000,000
Carrying value of net assets					362,900,000			362,900,000
Cash divested								30,800,000
Costs to sell incurred						$ 2,600,000
Liabilities for representations, warranties and indemnifications					$ 4,600,000			4,600,000
Proceeds from net working capital and other closing adjustments				$ 16,600,000
Fair value of the non-interest bearing promissory note and units acquired								$ 10,300,000
Mobile Business Unit | Units of Sierra
Discontinued Operations [Line Items]
Internal rate of return percentage			8.50%
Invested capital, subject to cap distributions			$ 125,000,000
[1]	Operating results for the nine months ended September 30, 2017 consist of the operations up to the date of close, February 28, 2017.

Schedule of Assets and liabilit

Schedule of Assets and liabilities held for sale (Detail) $ in Millions	Dec. 31, 2016USD ($)
Assets of component held for sale, current:
Assets of component held for sale, current (note 4)	$ 121.3
Assets of component held for sale, non-current:
Assets of component held for sale, non-current (note 4)	332.5
Liabilities of component held for sale, current:
Liabilities of component held for sale, current (note 4)	58.3
Liabilities of component held for sale, non-current:
Liabilities of component held for sale, non-current (note 4)	24.8
Mobile Business Unit | Discontinued Operations, Held-for-sale
Assets of component held for sale, current:
Cash and cash equivalents	3.5
Accounts receivable	83.2
Inventories	7.1
Other current assets	27.5
Assets of component held for sale, current (note 4)	121.3
Assets of component held for sale, non-current:
Property and equipment (net)	13.8
Identifiable intangible assets (net)	215.3
Goodwill	99.5
Other non-current assets	3.9
Assets of component held for sale, non-current (note 4)	332.5
Liabilities of component held for sale, current:
Accounts payable and accrued liabilities	43.3
Current portion of deferred revenue	14.6
Current portion of long-term debt - capital leases	0.4
Liabilities of component held for sale, current (note 4)	58.3
Liabilities of component held for sale, non-current:
Long-term debt - capital leases	0.9
Long-term portion of deferred revenue	1.7
Deferred tax liability	14.3
Other non-current liabilities	7.9
Liabilities of component held for sale, non-current (note 4)	$ 24.8

Schedule of Summarized Results

Schedule of Summarized Results of Operations (Detail) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
		Sep. 30, 2016	Sep. 30, 2017		Sep. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on disposal			$ 7.9
Comprehensive loss		$ (8.7)	(1.4)		$ (29.2)
Mobile Business Unit | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues		45.3	8	[1]	135.3
Cost of revenues		(21.7)	(6.3)	[1]	(58.7)
Selling, general and administrative expenses		(7.5)	(5.5)	[1]	(28.4)
Research and development expenses		(11.4)	(8.4)	[1]	(37.1)
Special charges and restructuring costs		(1.7)			(5.8)
Amortization of acquisition-related intangible assets		(10.1)			(30.3)
Interest expense	[2]	(5.5)	(3.7)	[1]	(16.5)
Other income		0.1			0.1
Gain on disposal	[1]		7.9
Loss from discontinued operations, before income taxes		(12.5)	(8)	[1]	(41.4)
Income tax recovery		3.8	6.6	[1]	12.2
Comprehensive loss		$ (8.7)	$ (1.4)	[1]	$ (29.2)
[1]	Operating results for the nine months ended September 30, 2017 consist of the operations up to the date of close, February 28, 2017.
[2]	Interest expense allocated to discontinued operations consists of the pro-rata allocation of interest expense on long-term debt that was repaid from the net proceeds of the sale of the Mobile business unit.

Sales-Type Leases (Detail)

Sales-Type Leases (Detail) - USD ($) $ in Millions		Sep. 30, 2017	Dec. 31, 2016
Sales Type Lease Receivables [Line Items]
Lease balances included in accounts receivable, gross		$ 3.9	$ 4.7
Current portion of investment in sales-type leases, gross		4.6	6
Non-current portion of investment in sales-type leases, gross		5.1	6.9
Total unsold sales-type leases (recorded as assets, net, on the consolidated balance sheets), gross		13.6	17.6
Sold rental payments remaining unbilled, gross		34.2	39.6
Total of sales-type leases unsold and sold, gross		47.8	57.2
Lease balances included in accounts receivable, allowance		(1)	(1)
Current portion of investment in sales-type leases, allowance		(0.1)	(0.2)
Non-current portion of investment in sales-type leases, allowance		(0.2)	(0.2)
Total unsold sales-type leases (recorded as assets, net, on the consolidated balance sheets), allowance		(1.3)	(1.4)
Sold rental payments remaining unbilled, allowance	[1]	(1.1)	(1.3)
Total of sales-type leases unsold and sold, allowance		(2.4)	(2.7)
Lease balances included in accounts receivable, net		2.9	3.7
Current portion of investment in sales-type leases, net		4.5	5.8
Non-current portion of investment in sales-type leases, net		4.9	6.7
Total unsold sales-type leases (recorded as assets, net, on the consolidated balance sheets), net		12.3	16.2
Sold rental payments remaining unbilled, net		33.1	38.3
Total of sales-type leases unsold and sold, net		$ 45.4	$ 54.5
[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 54

Net Investment in Sales-Type Leases - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Sales Type Lease Receivables [Line Items]
Sale of rental payments	$ 2.2	$ 3.2	$ 9.2	$ 12.1
Gains on sale of rental payments	$ 0.3	$ 0.5	$ 1.2	$ 1.9

Aging Analysis of Financing Rec

Aging Analysis of Financing Receivables (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Not past due	$ 39.3	$ 44.4
Past due	6.1	10.1
Total of sales-type leases unsold and sold, net	45.4	54.5
Sales-type lease receivables not past due, allowance	(0.9)	(1.1)
Sales-type lease receivables 1-90 days past due, allowance	(0.5)	(0.8)
Sales-type lease receivables greater than 90 days past due, allowance	(1)	(0.8)
Sales-type lease receivables total past due, allowance	(1.5)	(1.6)
Total of sales-type leases unsold and sold, allowance	(2.4)	(2.7)
Financing Receivables One to Ninety Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	5.6	9.8
Financing Receivable, 90 Days and Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	0.5	0.3
Lease balances included in accounts receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Not past due	2.1	2
Past due	1.8	2.7
Total of sales-type leases unsold and sold, net	3.9	4.7
Lease balances included in accounts receivable | Financing Receivables One to Ninety Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	0.8	1.7
Lease balances included in accounts receivable | Financing Receivable, 90 Days and Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	1	1
Investment in sold and unsold sales-type lease receivables
Financing Receivable, Recorded Investment, Past Due [Line Items]
Not past due	38.1	43.5
Past due	5.8	9
Total of sales-type leases unsold and sold, net	43.9	52.5
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]
Past due	5.3	8.9
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]
Past due	0.5	0.1
Total gross sales-type leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Not past due	40.2	45.5
Past due	7.6	11.7
Total of sales-type leases unsold and sold, net	47.8	57.2
Total gross sales-type leases | Financing Receivables One to Ninety Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	6.1	10.6
Total gross sales-type leases | Financing Receivable, 90 Days and Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	$ 1.5	$ 1.1

Amount of Gross Sales-Type Leas

Amount of Gross Sales-Type Leases Individually and Collectively Evaluated for Impairment (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Sales-type leases individually evaluated for impairment, gross	$ 2.8	$ 3.2
Allowance against sales-type leases individually evaluated for impairment	(1.4)	(1.4)
Sales-type leases individually evaluated for impairment, net	1.4	1.8
Sales-type leases collectively evaluated for impairment, gross	45	54
Allowance against sales-type leases collectively evaluated for impairment	(1)	(1.3)
Sales-type leases collectively evaluated for impairment, net	$ 44	$ 52.7

Inventories (Detail)

Inventories (Detail) - USD ($) $ in Millions		Sep. 30, 2017	Dec. 31, 2016
Inventory [Line Items]
Raw materials		$ 7	$ 7.3
Finished goods	[1]	103.1	69.7
Service inventory		7.3	6.4
Less: provision for excess and obsolete inventory	[1]	(10.5)	(8.5)
Inventories, net		$ 106.9	$ 74.9
[1]	At September 30, 2017, finished goods are recorded net of approximately $11.4 of historical inventory provision remaining from acquisitions, as discussed in note 3 of the Annual Financial Statements (December 31, 2016 - $11.5). 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, 2017	Dec. 31, 2016
Inventory [Line Items]
Provision for inventory	[1]	$ 10.5	$ 8.5
Aastra Technologies Limited
Inventory [Line Items]
Provision for inventory		$ 11.4	$ 11.5
[1]	At September 30, 2017, finished goods are recorded net of approximately $11.4 of historical inventory provision remaining from acquisitions, as discussed in note 3 of the Annual Financial Statements (December 31, 2016 - $11.5). This amount will decrease as the related inventory acquired is sold or written off.

Other Current Assets (Detail)

Other Current Assets (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Other Assets, Current [Line Items]
Prepaid expenses and deferred charges	$ 40.3	$ 26
Unbilled receivables	4.9	5.3
Due from related parties (note 10)	0.2	0.3
Income tax receivable	12.6	10.5
Other receivables	22	14.7
Restricted cash	1.6	0.9
Other current assets	$ 81.6	$ 57.7

Identifiable Intangible Asset60

Identifiable Intangible Assets (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Cost	$ 558.9	$ 221.7
Accumulated amortization	(148.1)	(121.3)
Net	410.8	100.4
Developed technology
Finite-Lived Intangible Assets [Line Items]
Cost	307.7	169.9
Accumulated amortization	(109)	(87.3)
Net	198.7	82.6
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	215.7	17.2
Accumulated amortization	(8.7)	(6.6)
Net	207	10.6
Patent, trademarks and other
Finite-Lived Intangible Assets [Line Items]
Cost	35.5	34.6
Accumulated amortization	(30.4)	(27.4)
Net	$ 5.1	$ 7.2

Accounts Payable and Accrued 61

Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Accounts Payable and Accrued Liabilities [Line Items]
Trade payables	$ 67.3	$ 45.5
Employee-related payables	56.7	39.6
Accrued liabilities	111.3	75.5
Restructuring, warranty and other provisions	25.6	18.9
Due to related parties (note 10)	1	0.8
Other payables	30.6	20.3
Accounts payable and accrued liabilities	$ 292.5	$ 200.6

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - Matthews Group - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Lease Properties
Related Party Transaction [Line Items]
Lease payments for base rent and operating costs	$ 1.1	$ 1.2	$ 3.5	$ 3.5
Other Related Party Transactions
Related Party Transaction [Line Items]
Sales to related party	0.1	0.2	0.5	1.1
Purchases from related party	$ 0.8	$ 0.7	$ 2.9	$ 2.4

Long Term Debt (Detail)

Long Term Debt (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Unamortized original issue discount	$ (1.5)	$ (4.7)
Unamortized debt issue costs	(11.3)	(12.6)
Capital leases	8.8	11.7
Long term debt	632.3	586
Less: current portion	(16.5)	(38.9)
Long-term debt, non current	615.8	547.1
Long term debt	632.3	586
2017 Credit Facilities | Term Loan
Debt Instrument [Line Items]
Long term debt	146.3
2017 Credit Facilities | Revolving Credit Facility
Debt Instrument [Line Items]
Long term debt	190
2017 Credit Facilities | Incremental Term Loan
Debt Instrument [Line Items]
Long term debt	$ 300
April 2015 Credit Facilities | Term Loan
Debt Instrument [Line Items]
Long term debt		$ 591.6

Long Term Debt (Parenthetical)

Long Term Debt (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2017
Term Loan | 2017 Credit Facilities
Debt Instrument [Line Items]
Term loan maturity period	5 years
Debt instrument maturity month	2022-03
Term Loan | April 2015 Credit Facilities
Debt Instrument [Line Items]
Debt instrument repaid, month and year	2017-03
Revolving Credit Facility | 2017 Credit Facilities
Debt Instrument [Line Items]
Debt instrument maturity month	2022-03
Incremental Term Loan | 2017 Credit Facilities
Debt Instrument [Line Items]
Term loan maturity period	6 years
Debt instrument maturity month	2023-09

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail) - USD ($)

Sep. 30, 2017

Mar. 09, 2017

Mar. 31, 2017

Jan. 31, 2017

Jul. 31, 2016

Jun. 30, 2016

Mar. 31, 2016

Jan. 31, 2016

Mar. 31, 2017

Sep. 30, 2016

Jun. 30, 2016

Mar. 31, 2016

Sep. 30, 2017

Sep. 30, 2016

Debt Instrument [Line Items]

Coverage ratio under credit facility

300.00%

300.00%

Interest coverage ratio

753.00%

753.00%

Term Loan

Debt Instrument [Line Items]

Debt retirement and other debt costs

$ 400,000

$ 400,000

$ 1,300,000

Voluntary repayment of term loan

$ 11,500,000

$ 13,600,000

$ 15,000,000

$ 25,000,000

Term Loan | June 2017 to March 2018

Debt Instrument [Line Items]

Quarterly principal repayments

$ 1,900,000

Term Loan | June 2018 to March 2020

Debt Instrument [Line Items]

Quarterly principal repayments

2,800,000

Term Loan | June 2020 to December 2021

Debt Instrument [Line Items]

Quarterly principal repayments

3,800,000

Incremental Term Loan

Debt Instrument [Line Items]

Quarterly principal repayments

$ 800,000

Debt instrument, prepayment penalty

1.00%

1.00%

April 2015 Credit Facilities | Term Loan

Debt Instrument [Line Items]

Credit facilities repaid, month and year

2017-03

Proceeds from new credit facilities

17,000,000

$ 40,000,000

$ 53,000,000

Repayments of credit facility

$ 338,100,000

$ 22,600,000

11,500,000

591,600,000

65,100,000

Debt retirement and other debt costs

$ 18,000,000

April 2015 Credit Facilities | Revolving Credit Facility

Debt Instrument [Line Items]

Repayments of credit facility

$ 17,000,000

40,000,000

$ 53,000,000

2017 Credit Facilities

Debt Instrument [Line Items]

New credit facility covenants unrestricted cash

$ 50,000,000

$ 50,000,000

New credit facility covenants

The applicable margin on LIBOR borrowings under the Incremental Term Loan is 3.75% and LIBOR has a floor of 1.00%. The applicable margin and the undrawn commitment fee on the revolving credit facility and the applicable margin on the Term Loan are based on the Consolidated Total Net Leverage Ratio (the “Leverage Ratio”), as defined in the amended credit facility (the ratio of Consolidated Total Indebtedness, net of up to $50.0 of unrestricted cash, to the trailing twelve months Consolidated EBITDA, as defined in the amended credit facility)

Leverage ratio

200.00%

200.00%

Debt instrument, annual principal repayments period

100 days

2017 Credit Facilities | Term Loan

Debt Instrument [Line Items]

Credit facilities

$ 150,000,000

Proceeds from new credit facilities

150,000,000

Total expenses related to credit facilities

2,000,000

Debt instrument maturity month

2022-03

2017 Credit Facilities | Revolving Credit Facility

Debt Instrument [Line Items]

Credit facilities

350,000,000

Proceeds from new credit facilities

95,000,000

Total expenses related to credit facilities

$ 4,600,000

Debt instrument maturity month

2022-03

2017 Credit Facilities | Incremental Term Loan

Debt Instrument [Line Items]

Credit facilities

$ 300,000,000

$ 300,000,000

Total expenses related to credit facilities

$ 9,500,000

Debt instrument maturity month

2023-09

2017 Credit Facilities | Incremental Term Loan | London Interbank Offered Rate Libor

Debt Instrument [Line Items]

Applicable margin on borrowings

3.75%

Floor rate on borrowings

1.00%

Summary of Consolidated Total N

Summary of Consolidated Total Net Leverage Ratio (Detail)	9 Months Ended
	Sep. 30, 2017
Less than 1.25
Debt Instrument [Line Items]
Commitment Fee	0.25%
Less than 1.25 | London Interbank Offered Rate Libor
Debt Instrument [Line Items]
Applicable Margin on LIBOR Rate Borrowings	1.75%
Greater than or Equal to 1.25 but Less than 1.75
Debt Instrument [Line Items]
Commitment Fee	0.25%
Greater than or Equal to 1.25 but Less than 1.75 | London Interbank Offered Rate Libor
Debt Instrument [Line Items]
Applicable Margin on LIBOR Rate Borrowings	2.00%
Greater than or Equal to 1.75 but Less than 2.25
Debt Instrument [Line Items]
Commitment Fee	0.30%
Greater than or Equal to 1.75 but Less than 2.25 | London Interbank Offered Rate Libor
Debt Instrument [Line Items]
Applicable Margin on LIBOR Rate Borrowings	2.25%
Greater than or Equal to 2.25 but Less than 2.75
Debt Instrument [Line Items]
Commitment Fee	0.35%
Greater than or Equal to 2.25 but Less than 2.75 | London Interbank Offered Rate Libor
Debt Instrument [Line Items]
Applicable Margin on LIBOR Rate Borrowings	2.50%
Greater than or equal to 2.75 but less than 3.25
Debt Instrument [Line Items]
Commitment Fee	0.35%
Greater than or equal to 2.75 but less than 3.25 | London Interbank Offered Rate Libor
Debt Instrument [Line Items]
Applicable Margin on LIBOR Rate Borrowings	3.00%
Greater than or equal to 3.25
Debt Instrument [Line Items]
Commitment Fee	0.40%
Greater than or equal to 3.25 | London Interbank Offered Rate Libor
Debt Instrument [Line Items]
Applicable Margin on LIBOR Rate Borrowings	3.25%

Summary of Consolidated Total67

Summary of Consolidated Total Net Leverage Ratio (Parenthetical) (Detail)	Sep. 30, 2017
Less than 1.25 | Maximum
Debt Instrument [Line Items]
Leverage ratio	125.00%
Greater than or Equal to 1.25 but Less than 1.75 | Maximum
Debt Instrument [Line Items]
Leverage ratio	175.00%
Greater than or Equal to 1.25 but Less than 1.75 | Minimum
Debt Instrument [Line Items]
Leverage ratio	125.00%
Greater than or Equal to 1.75 but Less than 2.25 | Maximum
Debt Instrument [Line Items]
Leverage ratio	225.00%
Greater than or Equal to 1.75 but Less than 2.25 | Minimum
Debt Instrument [Line Items]
Leverage ratio	175.00%
Greater than or Equal to 2.25 but Less than 2.75 | Maximum
Debt Instrument [Line Items]
Leverage ratio	275.00%
Greater than or Equal to 2.25 but Less than 2.75 | Minimum
Debt Instrument [Line Items]
Leverage ratio	225.00%
Greater than or equal to 2.75 but less than 3.25
Debt Instrument [Line Items]
Leverage ratio	325.00%
Greater than or equal to 2.75 but less than 3.25 | Minimum
Debt Instrument [Line Items]
Leverage ratio	275.00%
Greater than or equal to 3.25
Debt Instrument [Line Items]
Leverage ratio	325.00%

Maximum Leverage Ratio Under Te

Maximum Leverage Ratio Under Term Loan Agreement (Detail)	9 Months Ended
	Sep. 30, 2017
March 31,2017 through June 30, 2017
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	350.00%
July 1, 2017 through June 30, 2018
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	425.00%
July 1, 2018 through September 30, 2018
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	375.00%
October 1, 2018 through December 31, 2018
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	350.00%
January 1, 2019 and thereafter
Debt Instrument [Line Items]
Maximum Consolidated Leverage Ratio	325.00%

Schedule of Maximum Leverage Ra

Schedule of Maximum Leverage Ratio and Actual Leverage Ratio (Detail)	3 Months Ended	6 Months Ended	9 Months Ended
	Mar. 31, 2017	Jun. 30, 2017	Sep. 30, 2017
Debt Instrument [Line Items]
Maximum Leverage Ratio	350.00%	350.00%	425.00%
Actual Leverage Ratio	117.00%	132.00%	352.00%

Pension Plans - Additional Info

Pension Plans - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension liability	$ 148.7	$ 145.5

Net Periodic Benefit Cost (Deta

Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plans, Contribution expense		$ 2.7	$ 2.6	$ 8.5	$ 9.2
Defined benefit plans, Current service cost		0.6	0.8	1.7	2.1
Defined benefit plans, Interest cost		2.2	2.6	6.4	8.1
Defined benefit plans, Expected return on plan assets		(2.4)	(2.6)	(6.9)	(7.9)
Recognized actuarial loss	[1]	0.8	0.6	2.5	1.7
Total periodic benefit cost, net		$ 3.9	$ 4	$ 12.2	$ 13.2
[1]	Recognized actuarial loss represents the amortization of unrecognized actuarial loss out of accumulated other comprehensive loss into operating expenses, primarily selling, general and administrative expense.

Commitments, Guarantees and C72

Commitments, Guarantees and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Commitments and Contingencies Disclosure [Line Items]
Letters of credit, bank guarantees and other similar instruments	$ 5.9	$ 6.2

Share Capital - Additional Info

Share Capital - Additional Information (Detail) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2017shares	Sep. 30, 2017USD ($)Voteshares	Sep. 30, 2016shares	Sep. 30, 2017USD ($)Voteshares	Sep. 30, 2016shares	Dec. 31, 2016Voteshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common share holders vote per share | Vote		1		1		1
Common stock repurchased and canceled, shares		0		4,900,000		0
Common stock repurchased and cancel led | $		$ 0		$ 35.7
Buyback Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Public float percentage	10.00%
Buyback Program | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of common shares	7,800,000
2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares that may be issued		9,000,000		9,000,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options, granted		400,000	0	2,000,000	1,800,000
Equity instruments other than options, vested		200,000	200,000	900,000	700,000
Equity instruments other than options, outstanding		3,700,000		3,700,000		3,100,000
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options, granted	400,000
Equity instruments other than options, outstanding		400,000		400,000		0
Terms of performance target for PSUs				If the CAGR is greater than 25%, the PSUs vest at a ratio of 2 common stock for each PSU. For CAGRs from 10% to 25%, the PSUs vest at ratio of between 0.5 and 2.0 common stocks for each PSU, depending on the CAGR. PSUs have a term of three years.
Performance share units, vesting period				3 years
Performance Shares | Less than 10% | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cumulative annual growth rate percentage	10.00%
Performance Shares | Greater than 25%
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share units vesting ratio	200.00%
Performance Shares | Greater than 25% | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cumulative annual growth rate percentage	25.00%
Performance Shares | 10% to 25% | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cumulative annual growth rate percentage	25.00%
Performance share units vesting ratio	200.00%
Performance Shares | 10% to 25% | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cumulative annual growth rate percentage	10.00%
Performance share units vesting ratio	50.00%
Performance Shares | 2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options available for grant		8,600,000		8,600,000
Performance Shares | 2014 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options available for grant						2,700,000

Stock Option Activity (Detail)

Stock Option Activity (Detail) - $ / shares shares in Millions	3 Months Ended
	Sep. 30, 2017		Jun. 30, 2017		Mar. 31, 2017		Sep. 30, 2016		Jun. 30, 2016	Mar. 31, 2016
Number of Options
Balance, beginning of period	6.9		7.7		8.3		8.9		9.5	9.4
Granted			0.1			[1]		[1]	0.1	0.8
Exercised	(1.6)		(0.3)		(0.3)		(0.2)		(0.2)	(0.1)
Forfeited		[1]		[1]	(0.3)			[1]	(0.4)	(0.1)
Expired	(0.6)		(0.6)			[1]	(0.2)		(0.1)	(0.5)
Balance, end of period	4.7		6.9		7.7		8.5		8.9	9.5
Number of options exercisable	3.4						5.7
Weighted Average Exercise Price
Balance, beginning of period	$ 6.96		$ 7.03		$ 7.01		$ 7.07		$ 7.09	$ 6.97
Granted			6.47		6.59		8.12		6.74	7.17
Exercised	5.08		4.10		4.07		3.86		4.94	4.70
Forfeited	8.92		8.68		8.31		8.36		8.74	8.27
Expired	8.57		9.01		8.98		9.63		8.79	5.42
Balance, end of period	7.35		$ 6.96		$ 7.03		7.04		$ 7.07	$ 7.09
Number of options exercisable	$ 7.10						$ 6.55
[1]	Number of options is less than 0.1 for the period.

Stock Option Activity (Parenthe

Stock Option Activity (Parenthetical) (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2017USD ($)
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of options exercised	$ 0.1

Carrying Value of Warrants Outs

Carrying Value of Warrants Outstanding (Detail) - USD ($) $ in Millions		Sep. 30, 2017	Dec. 31, 2016
Class of Warrant or Right [Line Items]
Warrants issued in connection with government funding	[1]	$ 39.1	$ 39.1
[1]	At September 30, 2017, there were 2.48 million warrants outstanding that were issued in connection with government funding (December 31, 2016-2.48 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 Ou77

Carrying Value of Warrants Outstanding (Parenthetical) (Detail) - Warrants Issued in Connection with Government Funding - $ / shares shares in Thousands	Sep. 30, 2017	Dec. 31, 2016
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 as Required for Earnings Per Share Calculations (Detail) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Weighted Average Number of Shares Outstanding [Line Items]
Weighted average common shares outstanding, basic	118.9	121.7	120.9	121.3
Weighted average common shares outstanding, diluted	118.9	125.9	120.9	125.5
Stock Options
Weighted Average Number of Shares Outstanding [Line Items]
Dilutive effect of shares		1.4		1.5
Restricted Stock Units (RSUs)
Weighted Average Number of Shares Outstanding [Line Items]
Dilutive effect of shares		0.3		0.2
Warrants
Weighted Average Number of Shares Outstanding [Line Items]
Dilutive effect of warrants		2.5		2.5

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, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average number outstanding	3.2	4.7	3.9	5.2
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	1.5		2.6
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average number outstanding	0.7	1.5	1	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	3		2.6
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

Weighted Average Common Share80

Weighted Average Common Shares Outstanding - Additional Information (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Performance Shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of contingently issuable shares of PSUs which could potentially dilute earnings per share in future periods	400,000	0	400,000	0

Special Charges and Restructu81

Special Charges and Restructuring Costs - Additional Information (Detail) $ in Millions	Jul. 08, 2016USD ($)	Sep. 30, 2017USD ($)Employee	Jun. 30, 2017USD ($)Employee	Mar. 31, 2017USD ($)Employee	Sep. 30, 2016USD ($)Employee	Jun. 30, 2016USD ($)Employee	Mar. 31, 2016USD ($)Employee	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs		$ 35.7	$ 9.9	$ 10.8	$ 20.8	$ 23.6	$ 13.4	$ 56.4	$ 57.8
Income from termination fee received					60				$ 60
Restructuring related liability, current		25.6						25.6		$ 18.9
Polycom, Inc.
Restructuring Cost and Reserve [Line Items]
Income from termination fee received	$ 60
Workforce Reduction
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs		$ 17.2	$ 7.8	$ 2.7	$ 4.1	$ 6.5	$ 4.9
Approximate number of employees terminated | Employee		75	125	35	40	18	25
Workforce Reduction | Accounts Payable and Accrued Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring related liability, current		$ 14.4						14.4
Facility-Related, Including Lease Termination Obligation
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs		0.2	$ 0.2	$ 0.1	$ 0.8	$ 0.2	$ 0.3
Facility-Related, Including Lease Termination Obligation | Accounts Payable and Accrued Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring related liability, current		2.9						2.9
Facility-Related, Including Lease Termination Obligation | Other Noncurrent Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring related liability, non-current		1.1						$ 1.1
Integration and Acquisition Related
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs		$ 18.3	$ 1.9	$ 8
Integration Related
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs					4	5.6	4.1
Acquisition Related
Restructuring Cost and Reserve [Line Items]
Special charges and restructuring costs					$ 11.9	$ 11.3	$ 4.1

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, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016
Restructuring Cost and Reserve [Line Items]
Beginning balance of provision	$ 11.8	$ 11.7	$ 13.2	$ 16.5	$ 17.9	$ 19.9	$ 19.3
Charges	17.4	8	2.8	5.3	4.9	6.7	5.2
Cash payments	(10.8)	(7.9)	(4.3)	(8.6)	(6.3)	(8.7)	(4.6)
Ending balance of provision	18.4	11.8	11.7	13.2	16.5	17.9	19.9
Workforce Reduction
Restructuring Cost and Reserve [Line Items]
Beginning balance of provision	7.8	7.6	8.7	11.6	13.2	14.8	13.7
Charges	17.2	7.8	2.7	5	4.1	6.5	4.9
Cash payments	(10.6)	(7.6)	(3.8)	(7.9)	(5.7)	(8.1)	(3.8)
Ending balance of provision	14.4	7.8	7.6	8.7	11.6	13.2	14.8
Facility-Related, Including Lease Termination Obligation
Restructuring Cost and Reserve [Line Items]
Beginning balance of provision	4	4.1	4.5	4.9	4.7	5.1	5.6
Charges	0.2	0.2	0.1	0.3	0.8	0.2	0.3
Cash payments	(0.2)	(0.3)	(0.5)	(0.7)	(0.6)	(0.6)	(0.8)
Ending balance of provision	$ 4	$ 4	$ 4.1	$ 4.5	$ 4.9	$ 4.7	$ 5.1

Segment Information - Additiona

Segment Information - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2017Segment
Segment Reporting Information [Line Items]
Number of operating segments	2

Enterprise Product and Service,

Enterprise Product and Service, and Cloud Recurring Revenues and Gross Margin for Company's Operating Segment (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Revenues	$ 241.5	$ 234.5	$ 703.2	$ 727.8
Gross margin	133	124.7	381.6	391.7
Enterprise
Segment Reporting Information [Line Items]
Revenues	205.5	205.5	605.3	642.5
Gross margin	114.9	109.9	332.4	349.3
Product | Enterprise
Segment Reporting Information [Line Items]
Revenues	142.8	141.4	421.7	438.3
Gross margin	81.9	80.2	236.8	253.3
Services | Enterprise
Segment Reporting Information [Line Items]
Revenues	62.7	64.1	183.6	204.2
Gross margin	33	29.7	95.6	96
Recurring | Cloud
Segment Reporting Information [Line Items]
Revenues	36	29	97.9	85.3
Gross margin	$ 18.1	$ 14.8	$ 49.2	$ 42.4

Revenues from External Customer

Revenues from External Customers (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues from External Customers [Line Items]
Revenues	$ 241.5	$ 234.5	$ 703.2	$ 727.8
Canada
Revenues from External Customers [Line Items]
Revenues	6.5	7.3	21.2	23
United States
Revenues from External Customers [Line Items]
Revenues	106.9	103.8	306.5	324.6
Rest of Americas
Revenues from External Customers [Line Items]
Revenues	2.9	3.3	8.3	9
Americas
Revenues from External Customers [Line Items]
Revenues	116.3	114.4	336	356.6
Germany
Revenues from External Customers [Line Items]
Revenues	22.9	27.7	68.8	81
U.K.
Revenues from External Customers [Line Items]
Revenues	24.7	22.8	70.2	71.8
Rest of EMEA
Revenues from External Customers [Line Items]
Revenues	69.3	62.1	204.2	195.5
EMEA
Revenues from External Customers [Line Items]
Revenues	116.9	112.6	343.2	348.3
Asia-Pacific
Revenues from External Customers [Line Items]
Revenues	$ 8.3	$ 7.5	$ 24	$ 22.9

Supplementary Cash Flow Infor86

Supplementary Cash Flow Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Changes in non-cash operating assets and liabilities:
Accounts receivable and sales-type lease receivables	$ 10	$ 5.6	$ 60.2	$ 37.8
Inventories	(3.9)	(3.8)	(11)	(4)
Other current assets	(2.9)	(4.8)	(5.6)	(19)
Other non-current assets	(0.8)	(1.4)	(1.9)	(1.4)
Accounts payable and accrued liabilities	28.8	(29)	(11.5)	(6.7)
Deferred revenue	(2.9)	(2.9)	(1.8)	(10.9)
Other non-current liabilities	1.1	(2.3)	(0.2)	(4.8)
Change in pension liability	(0.8)	(0.4)	(3.6)	(3)
Changes in non-cash operating assets and liabilities	28.6	(39)	24.6	(12)
Other items:
Interest payments	3.4	8.9	16.2	27.7
Income tax payments	1.2	3.5	5.6	11
Income tax refunds	$ 4.4		4.9
Property and equipment additions financed through capital lease		$ 3	$ 0.8	$ 6.9

Supplementary Cash Flow Infor87

Supplementary Cash Flow Information - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Supplemental Cash Flow Information [Abstract]
Cash	$ 54.3	$ 96.2
Cash equivalents	$ 1.1	$ 1.1

Hedging Activities - Additional

Hedging Activities - Additional Information (Detail) - Fair value hedging - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net unrealized gain(loss) on fair value adjustments on outstanding forward contracts	$ 0.8	$ (0.2)
Canada, Dollars | Purchase contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount	10.4	7.8
United States of America, Dollars | Purchase contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount	59.3	81.4
Australia, Dollars | Sale contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount	4.9	8.4
Euro Member Countries, Euro | Sale contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount	37.5	54.8
Switzerland, Francs | Sale contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount	25.2	10.2
Norway, Krone | Sale contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount	$ 2.1
Sweden, Kronor | Sale contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount		16.7
Indian, Rupees | Purchase contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount		7.4
Indonesia, Rupiahs | Purchase contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount		3.8
Singapore, Dollars | Sale contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward contract notional amount		$ 10.3

Income from Termination Fee R89

Income from Termination Fee Received - Additional Information (Detail) - USD ($) $ in Millions	Jul. 08, 2016	Sep. 30, 2016	Sep. 30, 2016
Business Acquisition [Line Items]
Income from termination fee received		$ 60	$ 60
Polycom, Inc.
Business Acquisition [Line Items]
Income from termination fee received	$ 60