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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2018 | Mar. 31, 2017
OPERATING ACTIVITIES |  |  |  |
Net income (loss) |  | $ 6.3 |  | $ (2.9)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |  |  |
Depreciation and amortization |  | 13.7 |  | 9.2
Interest accretion of convertible notes discount |  | 2.5 |  | 3.3
Employee share-based compensation expense |  | 3.2 |  | 6.3
Financing costs amortization |  | 0.3 |  | 0.3
Unrealized foreign currency transaction (gain) loss |  | (0.4) |  | 0.2
Other non-cash operating activities |  | 0.3 |  | 0.6
Changes in assets and liabilities, net of acquisitions: |  |  |  |
Accounts receivable |  | 17.9 | $ (15.4) | 16.2
Inventory |  | (21.6) |  | (20.9)
Unbilled contract revenues and other assets |  | 6.4 | (5.8) | (4.9)
Accounts payable and other liabilities |  | (18.6) |  | (10.6)
Customer advances and billings in excess of contract revenue |  | 13.0 | 14.4 | 4.4
Net Cash Provided By Operating Activities |  | 23.0 |  | 1.2
INVESTING ACTIVITIES |  |  |  |
Capital expenditures |  | (6.6) |  | (8.4)
Government grants |  | 0.1 |  | 0.2
Acquisition of businesses, net of cash acquired |  | (12.5) |  | (23.2)
Net Cash Used In Investing Activities |  | (19.0) |  | (31.4)
FINANCING ACTIVITIES |  |  |  |
Borrowings on revolving credit facilities |  | 38.0 |  | 2.2
Repayments on revolving credit facilities |  | (26.8) |  | (3.6)
Payments for debt issuance costs |  | (0.2) |  | 0.0
Proceeds from exercise of stock options |  | 1.2 |  | 0.0
Common stock repurchases |  | (2.2) |  | (1.8)
Net Cash Provided By (Used In) Financing Activities |  | 10.0 |  | (3.2)
Effect of exchange rate changes on cash and cash equivalents |  | 3.9 |  | 0.7
Net increase (decrease) in cash, cash equivalents, restricted cash, and restricted cash equivalents |  | 17.9 |  | (32.7)
Cash, cash equivalents, restricted cash, and restricted cash equivalents at beginning of period (1) | [1] | 131.4 |  | 282.9
CASH, CASH EQUIVALENTS, RESTRICTED CASH, AND RESTRICTED CASH EQUIVALENTS AT END OF PERIOD (1) | [1] | $ 149.3 | $ 149.3 | $ 250.2
[1] | Includes restricted cash of $6.5 ($5.5 in other current assets and $1.0 in other assets) at March 31, 2018 and $8.7 ($7.7 in other current assets and $1.0 in other assets) at December 31, 2017. For further information regarding restricted cash and restricted cash equivalents balances, refer to Note 5, “Debt and Credit Arrangements.”

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