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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 6 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Cash flows from operating activities: |  |  |
Net income (loss) for the period |  | $ 220,302,000 | $ 37,973,000
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization of intangible assets |  | 253,483,000 | 264,330,000
Share-based compensation expense |  | 28,343,000 | 26,262,000
Pension expense |  | 3,015,000 | 3,120,000
Amortization of debt issuance costs |  | 2,454,000 | 2,254,000
Loss on extinguishment of debt |  | 27,413,000 | 0
Loss on sale and write down of property and equipment |  | 38,000 | 953,000
Deferred taxes |  | 20,892,000 | 80,397,000
Share in net (income) loss of equity investees |  | (31,357,000) | (8,255,000)
Changes in operating assets and liabilities: |  |  |
Accounts receivable |  | 51,187,000 | 32,727,000
Contract assets |  | (18,745,000) | (20,193,000)
Prepaid expenses and other current assets |  | (11,221,000) | 7,966,000
Income taxes |  | 2,776,000 | 168,841,000
Accounts payable and accrued liabilities |  | (108,629,000) | (36,538,000)
Deferred revenue |  | (50,693,000) | (18,647,000)
Other assets |  | 16,913,000 | (1,467,000)
Operating lease assets and liabilities, net |  | 142,000 | (23,364,000)
Net cash provided by operating activities |  | 406,313,000 | 516,359,000
Cash flows from investing activities: |  |  |
Additions of property and equipment |  | (37,347,000) | (22,956,000)
Purchase of Zix Corporation, net of cash acquired |  | (837,573,000) | 0
Purchase of Bricata Inc. |  | (17,927,000) | 0
Purchase of XMedius |  | 0 | 444,000
Purchase of Dynamic Solutions Group Inc. |  | 0 | (371,000)
Other investing activities |  | (3,271,000) | (1,370,000)
Net cash used in investing activities |  | (896,118,000) | (24,253,000)
Cash flows from financing activities: |  |  |
Proceeds from issuance of Common Shares from exercise of stock options and ESPP |  | 45,688,000 | 29,177,000
Proceeds from long-term debt and Revolver |  | 1,500,000,000 | 0
Repayment of long-term debt and Revolver |  | (855,000,000) | (605,000,000)
Debt extinguishment costs (note 22) |  | (24,969,000) | 0
Debt issuance costs |  | (15,347,000) | 0
Repurchase of Common Shares |  | (91,034,000) | 0
Purchase of treasury stock |  | (19,593,000) | (41,870,000)
Distribution to non-controlling interest |  | (396,000) | 0
Payments of dividends to shareholders |  | (119,536,000) | (101,769,000)
Net cash provided by (used in) financing activities |  | 419,813,000 | (719,462,000)
Foreign exchange gain (loss) on cash held in foreign currencies |  | (25,713,000) | 33,771,000
Increase (decrease) in cash, cash equivalents and restricted cash during the period |  | (95,705,000) | (193,585,000)
Cash, cash equivalents and restricted cash at beginning of the period |  | 1,609,800,000 | 1,697,263,000
Cash, cash equivalents and restricted cash at end of the period |  | 1,514,095,000 | 1,503,678,000
Reconciliation of cash, cash equivalents and restricted cash: |  |  |
Cash and cash equivalents |  | 1,511,792,000 | 1,500,561,000
Restricted cash | [1] | 2,303,000 | 3,117,000
Total cash, cash equivalents and restricted cash |  | $ 1,514,095,000 | $ 1,503,678,000
[1] | Restricted cash is classified under the Prepaid expenses and other current assets and Other assets line items on the Condensed Consolidated Balance Sheets (note 9).

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