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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2019
Accounting Policies [Abstract] |
Schedule of changes in the carrying value of goodwill attributable to each reportable operating segment | The changes in the carrying value of goodwill attributable to each reportable operating segment for the six months ended June 30, 2019 are as follows:
| North American Records and Information Management Business |  | North American Data Management Business |  | Western European Business |  | Other International Business |  | Global Data Center Business |  | Corporate and Other Business |  | Total Consolidated
Goodwill balance, net of accumulated amortization as of December 31, 2018 | $ | 2,251,795 |  |  | $ | 493,491 |  |  | $ | 381,806 |  |  | $ | 818,223 |  |  | $ | 425,956 |  |  | $ | 69,759 |  |  | $ | 4,441,030 |
Deductible goodwill acquired during the year | 5,501 |  |  | — |  |  | — |  |  | 2,758 |  |  | — |  |  | — |  |  | 8,259 |
Non-deductible goodwill acquired during the year | — |  |  | — |  |  | 5,011 |  |  | 4,387 |  |  | — |  |  | 1,904 |  |  | 11,302 |
Fair value and other adjustments(1) | 55 |  |  | — |  |  | 959 |  |  | 2,842 |  |  | 258 |  |  | (422 | ) |  | 3,692 |
Currency effects | 7,704 |  |  | 2,093 |  |  | (2,851 | ) |  | 1,907 |  |  | 193 |  |  | 95 |  |  | 9,141 |
Goodwill balance, net accumulated amortization as of June 30, 2019 | $ | 2,265,055 |  |  | $ | 495,584 |  |  | $ | 384,925 |  |  | $ | 830,117 |  |  | $ | 426,407 |  |  | $ | 71,336 |  |  | $ | 4,473,424 |
Accumulated Goodwill Impairment Balance as of December 31, 2018 | $ | 85,909 |  |  | $ | — |  |  | $ | 46,500 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,011 |  |  | $ | 135,420 |
Accumulated Goodwill Impairment Balance as of June 30, 2019 | $ | 85,909 |  |  | $ | — |  |  | $ | 46,500 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,011 |  |  | $ | 135,420 |
_______________________________________________________________________________
(1) | Total fair value and other adjustments primarily include $3,755 in net adjustments related to property, plant and equipment, customer relationships and data center lease-based intangible assets and deferred income taxes and other liabilities offset by $63 of cash received related to certain acquisitions completed in 2018.
Components of amortizable intangible assets | The other finite-lived intangible assets as of June 30, 2019 and December 31, 2018 are as follows:
| June 30, 2019 |  | December 31, 2018
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Other finite-lived intangible assets (included in Other, a component of other assets, net) | $ | 19,960 |  |  | $ | (16,482 | ) |  | $ | 3,478 |  |  | $ | 20,310 |  |  | $ | (14,798 | ) |  | $ | 5,512 |
The gross carrying amount and accumulated amortization of our finite-lived intangible assets as of June 30, 2019 and December 31, 2018 are as follows:
| June 30, 2019 |  | December 31, 2018
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Assets: |  |  |  |  |  |  |  |  |  |  |
Customer relationship intangible assets | $ | 1,766,769 |  |  | $ | (511,672 | ) |  | $ | 1,255,097 |  |  | $ | 1,718,919 |  |  | $ | (455,705 | ) |  | $ | 1,263,214 |
Customer inducements | 52,542 |  |  | (29,091 | ) |  | 23,451 |  |  | 56,478 |  |  | (34,181 | ) |  | 22,297 |
Data center lease-based intangible assets(1) | 266,263 |  |  | (77,786 | ) |  | 188,477 |  |  | 271,818 |  |  | (50,807 | ) |  | 221,011 |
Third-party commissions asset(2) | 31,391 |  |  | (1,874 | ) |  | 29,517 |  |  | 30,071 |  |  | (1,089 | ) |  | 28,982 |
| $ | 2,116,965 |  |  | $ | (620,423 | ) |  | $ | 1,496,542 |  |  | $ | 2,077,286 |  |  | $ | (541,782 | ) |  | $ | 1,535,504 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |
Data center below-market leases | $ | 12,765 |  |  | $ | (2,954 | ) |  | $ | 9,811 |  |  | $ | 12,318 |  |  | $ | (1,642 | ) |  | $ | 10,676 |
_______________________________________________________________________________
(1) | Includes data center in-place lease intangible assets, data center tenant relationship intangible assets and data center above-market in-place lease intangible assets.
(2) | Third-party commissions asset is included in Other, a component of Other assets, net in the accompanying Condensed Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018. The third-party commissions asset is primarily comprised of additional payments associated with the execution of future customer contracts through the one-year anniversary of the acquisition of IODC, as described in Note 3.
Schedule of amortization expenses | Amortization expense associated with finite-lived intangible assets, revenue reduction associated with the amortization of customer inducements and net revenue reduction associated with the amortization of data center above-market leases and data center below-market leases for the three and six months ended June 30, 2019 and 2018 are as follows:
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2019 |  | 2018 |  | 2019 |  | 2018
Amortization expense included in depreciation and amortization associated with: |  |  |  |  |  |  |  |
Customer relationship and customer inducement intangible assets |  | $ | 28,283 |  |  | $ | 28,813 |  |  | $ | 56,164 |  |  | $ | 57,619 |
Data center in-place leases and tenant relationships |  | 11,372 |  |  | 7,563 |  |  | 23,981 |  |  | 18,401 |
Third-party commissions asset and other finite-lived intangible assets |  | 2,184 |  |  | 1,659 |  |  | 2,941 |  |  | 2,844 |
Revenue reduction associated with amortization of: |  |  |  |  |  |  |  |
Customer inducements |  | $ | 2,598 |  |  | $ | 2,968 |  |  | $ | 5,338 |  |  | $ | 5,553 |
Data center above-market leases and data center below-market leases |  | 935 |  |  | 1,293 |  |  | 1,840 |  |  | 2,372 |
Schedule of amortization expense associated with commissions asset and Intake Costs | The costs of the initial intake of customer records into physical storage ("Intake Costs") and capitalized commissions asset (collectively, "Contract Fulfillment Costs") as of June 30, 2019 and December 31, 2018 are as follows:
|  |  |  | June 30, 2019 |  | December 31, 2018
Description |  | Location in Balance Sheet |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Intake Costs asset |  | Other (within Other Assets, Net) |  | $ | 34,915 |  |  | $ | (19,398 | ) |  | $ | 15,517 |  |  | $ | 39,748 |  |  | $ | (24,504 | ) |  | $ | 15,244 |
Capitalized commissions asset |  | Other (within Other Assets, Net) |  | 48,564 |  |  | (17,895 | ) |  | 30,669 |  |  | 58,424 |  |  | (34,637 | ) |  | 23,787 |
Amortization expense associated with the Intake Costs asset and capitalized commissions asset for the three and six months ended June 30, 2019 and 2018 are as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Intake Costs asset | $ | 2,835 |  |  | $ | 2,891 |  |  | $ | 5,514 |  |  | $ | 5,621 |
Capitalized commissions asset | 5,935 |  |  | 3,793 |  |  | 9,881 |  |  | 7,380 |
Schedule of deferred revenue liabilities | Deferred revenue liabilities are reflected as follows in our Condensed Consolidated Balance Sheets:
Description |  | Location in Balance Sheet |  | June 30, 2019 |  | December 31, 2018
Deferred revenue - Current |  | Deferred revenue |  | $ | 268,779 |  |  | $ | 264,823 |
Deferred revenue - Long-term |  | Other Long-term Liabilities |  | 25,436 |  |  | 26,401 |
Operating and financing lease right-of-use assets and lease liabilities | Operating and financing lease right-of-use assets and lease liabilities as of June 30, 2019 and January 1, 2019 (date of adoption of ASU 2016-02) are as follows:
Description |  | Location in Balance Sheet |  | June 30, 2019 |  | January 1, 2019 (Date of Adoption of ASU 2016-02)
Assets: |  |  |  |  |  |
Operating lease right-of-use assets(1) |  | Operating lease right-of-use assets |  | $ | 1,793,807 |  |  | $ | 1,825,721 |
Financing lease right-of-use assets, net of accumulated depreciation(2) |  | Property, plant and equipment, net |  | 344,320 |  |  | 361,078 |
Total |  |  |  | $ | 2,138,127 |  |  | $ | 2,186,799 |
Liabilities: |  |  |  |  |  |
Current |  |  |  |  |  |
Operating lease liabilities |  | Accrued expenses and other current liabilities |  | $ | 212,968 |  |  | $ | 209,911 |
Financing lease liabilities |  | Current portion of long-term debt |  | 50,116 |  |  | 50,437 |
Total current lease liabilities |  |  |  | 263,084 |  |  | 260,348 |
Long-term |  |  |  |  |  |
Operating lease liabilities |  | Long-term operating lease liabilities, net of current portion |  | 1,655,477 |  |  | 1,685,771 |
Financing lease liabilities |  | Long-term Debt, net of current portion |  | 331,233 |  |  | 350,263 |
Total long-term lease liabilities |  |  |  | 1,986,710 |  |  | 2,036,034 |
Total |  |  |  | $ | 2,249,794 |  |  | $ | 2,296,382 |
______________________________________________________________ (1) At June 30, 2019, these assets are comprised of approximately 98% real estate related assets (which include land, buildings and racking) and 2% non-real estate related assets (which include warehouse equipment, vehicles, furniture and fixtures and computer hardware and software). (2) At June 30, 2019, these assets are comprised of approximately 62% real estate related assets and 38% non-real estate related assets.
Lease, cost | Supplemental cash flow information relating to our leases for the six months ended June 30, 2019 is as follows:
Cash paid for amounts included in measurement of lease liabilities: |  | Six Months Ended June 30, 2019
Operating cash flows used in operating leases |  | $ | 167,426 |
Financing cash flows used in financing leases |  | $ | 31,146 |
Non-cash items: |  |
Operating lease modifications and reassessments |  | $ | 14,024 |
New operating leases (including acquisitions) |  | $ | 87,482 |
New financing leases, modifications and reassessments |  | $ | 13,662 |
Weighted average remaining lease terms and discount rates as of June 30, 2019 are as follows:
Remaining Lease Term: |  |
Operating leases |  | 11.0 Years
Financing leases |  | 11.0 Years
Discount Rate: |  |
Operating leases |  | 7.1%
Financing leases |  | 5.6%
The components of the lease expense for the three and six months ended June 30, 2019 are as follows:
Description |  | Location in Statement of Operations |  | Three Months Ended June 30, 2019 |  | Six Months Ended June 30, 2019
Operating lease cost(1) |  | Cost of sales and Selling, general and administrative |  | $ | 113,392 |  |  | $ | 222,571 |
Financing lease cost: |  |  |  |  |  |
Depreciation of financing lease right-of-use assets |  | Depreciation and amortization |  | $ | 14,942 |  |  | $ | 31,271 |
Interest expense for financing lease liabilities |  | Interest expense, net |  | 4,925 |  |  | 11,067 |
Total financing lease cost |  |  |  | $ | 19,867 |  |  | $ | 42,338 |
______________________________________________________________ (1) Of the $113,392 incurred for the three months ended June 30, 2019, $110,441 is included within Cost of sales and $2,951 is included within Selling, general and administrative expenses. Of the $222,571 incurred for the six months ended June 30, 2019, $216,335 is included within Cost of sales and $6,236 is included within Selling, general and administrative expenses. Operating lease cost includes variable lease costs of $23,847 and $46,610 for the three and six months ended June 30, 2019, respectively.
Schedule of future minimum lease payments for capital leases | The estimated minimum future lease payments as of June 30, 2019, are as follows:
Year |  | Operating Leases(1) |  | Sublease Income |  | Financing Leases(1)
2019 (excluding the six months ended June 30, 2019) |  | $ | 171,378 |  |  | $ | (3,494 | ) |  | $ | 40,635 |
2020 |  | 321,670 |  |  | (5,728 | ) |  | 60,377 |
2021 |  | 295,696 |  |  | (4,828 | ) |  | 54,766 |
2022 |  | 271,552 |  |  | (4,462 | ) |  | 48,071 |
2023 |  | 246,252 |  |  | (4,333 | ) |  | 40,351 |
Thereafter |  | 1,482,286 |  |  | (10,185 | ) |  | 296,260 |
Total minimum lease payments |  | 2,788,834 |  |  | $ | (33,030 | ) |  | 540,460 |
Less amounts representing interest or imputed interest |  | (920,389 | ) |  |  |  |  | (159,111 | )
Present value of lease obligations |  | $ | 1,868,445 |  |  |  |  |  | $ | 381,349 |
The estimated minimum future lease payments as of December 31, 2018 are as follows:
Year |  | Operating Leases(1) |  | Sublease Income |  | Financing Leases(1)(2)
2019 |  | $ | 323,454 |  |  | $ | (7,525 | ) |  | $ | 80,513 |
2020 |  | 293,276 |  |  | (7,200 | ) |  | 71,335 |
2021 |  | 267,379 |  |  | (7,063 | ) |  | 61,269 |
2022 |  | 246,128 |  |  | (6,694 | ) |  | 52,832 |
2023 |  | 221,808 |  |  | (6,409 | ) |  | 44,722 |
Thereafter |  | 1,287,807 |  |  | (6,279 | ) |  | 377,750 |
Total minimum lease payments |  | $ | 2,639,852 |  |  | $ | (41,170 | ) |  | 688,421 |
Less amounts representing interest |  |  |  |  |  |  | (241,248 | )
Present value of lease obligations |  |  |  |  |  |  | $ | 447,173 |
_______________________________________________________________________________
(1) | Estimated minimum future lease payments exclude variable common area maintenance charges, insurance and taxes. Differences in estimated lease payments between June 30, 2019 and December 31, 2018 are primarily related to adjustments to account for certain build to suit leases that were accounted for as financing obligations under ASC 840 but are accounted for as operating leases under ASU 2016-02 and foreign currency exchange rate impacts.
(2) Includes capital lease and financing obligations associated with build to suit lease transactions at December 31, 2018.
Finance lease, liability, maturity | The estimated minimum future lease payments as of June 30, 2019, are as follows:
Year |  | Operating Leases(1) |  | Sublease Income |  | Financing Leases(1)
2019 (excluding the six months ended June 30, 2019) |  | $ | 171,378 |  |  | $ | (3,494 | ) |  | $ | 40,635 |
2020 |  | 321,670 |  |  | (5,728 | ) |  | 60,377 |
2021 |  | 295,696 |  |  | (4,828 | ) |  | 54,766 |
2022 |  | 271,552 |  |  | (4,462 | ) |  | 48,071 |
2023 |  | 246,252 |  |  | (4,333 | ) |  | 40,351 |
Thereafter |  | 1,482,286 |  |  | (10,185 | ) |  | 296,260 |
Total minimum lease payments |  | 2,788,834 |  |  | $ | (33,030 | ) |  | 540,460 |
Less amounts representing interest or imputed interest |  | (920,389 | ) |  |  |  |  | (159,111 | )
Present value of lease obligations |  | $ | 1,868,445 |  |  |  |  |  | $ | 381,349 |
The estimated minimum future lease payments as of December 31, 2018 are as follows:
Year |  | Operating Leases(1) |  | Sublease Income |  | Financing Leases(1)(2)
2019 |  | $ | 323,454 |  |  | $ | (7,525 | ) |  | $ | 80,513 |
2020 |  | 293,276 |  |  | (7,200 | ) |  | 71,335 |
2021 |  | 267,379 |  |  | (7,063 | ) |  | 61,269 |
2022 |  | 246,128 |  |  | (6,694 | ) |  | 52,832 |
2023 |  | 221,808 |  |  | (6,409 | ) |  | 44,722 |
Thereafter |  | 1,287,807 |  |  | (6,279 | ) |  | 377,750 |
Total minimum lease payments |  | $ | 2,639,852 |  |  | $ | (41,170 | ) |  | 688,421 |
Less amounts representing interest |  |  |  |  |  |  | (241,248 | )
Present value of lease obligations |  |  |  |  |  |  | $ | 447,173 |
_______________________________________________________________________________
(1) | Estimated minimum future lease payments exclude variable common area maintenance charges, insurance and taxes. Differences in estimated lease payments between June 30, 2019 and December 31, 2018 are primarily related to adjustments to account for certain build to suit leases that were accounted for as financing obligations under ASC 840 but are accounted for as operating leases under ASU 2016-02 and foreign currency exchange rate impacts.
(2) Includes capital lease and financing obligations associated with build to suit lease transactions at December 31, 2018.
Lessee, operating lease, liability, maturity | The estimated minimum future lease payments as of June 30, 2019, are as follows:
Year |  | Operating Leases(1) |  | Sublease Income |  | Financing Leases(1)
2019 (excluding the six months ended June 30, 2019) |  | $ | 171,378 |  |  | $ | (3,494 | ) |  | $ | 40,635 |
2020 |  | 321,670 |  |  | (5,728 | ) |  | 60,377 |
2021 |  | 295,696 |  |  | (4,828 | ) |  | 54,766 |
2022 |  | 271,552 |  |  | (4,462 | ) |  | 48,071 |
2023 |  | 246,252 |  |  | (4,333 | ) |  | 40,351 |
Thereafter |  | 1,482,286 |  |  | (10,185 | ) |  | 296,260 |
Total minimum lease payments |  | 2,788,834 |  |  | $ | (33,030 | ) |  | 540,460 |
Less amounts representing interest or imputed interest |  | (920,389 | ) |  |  |  |  | (159,111 | )
Present value of lease obligations |  | $ | 1,868,445 |  |  |  |  |  | $ | 381,349 |
The estimated minimum future lease payments as of December 31, 2018 are as follows:
Year |  | Operating Leases(1) |  | Sublease Income |  | Financing Leases(1)(2)
2019 |  | $ | 323,454 |  |  | $ | (7,525 | ) |  | $ | 80,513 |
2020 |  | 293,276 |  |  | (7,200 | ) |  | 71,335 |
2021 |  | 267,379 |  |  | (7,063 | ) |  | 61,269 |
2022 |  | 246,128 |  |  | (6,694 | ) |  | 52,832 |
2023 |  | 221,808 |  |  | (6,409 | ) |  | 44,722 |
Thereafter |  | 1,287,807 |  |  | (6,279 | ) |  | 377,750 |
Total minimum lease payments |  | $ | 2,639,852 |  |  | $ | (41,170 | ) |  | 688,421 |
Less amounts representing interest |  |  |  |  |  |  | (241,248 | )
Present value of lease obligations |  |  |  |  |  |  | $ | 447,173 |
_______________________________________________________________________________
(1) | Estimated minimum future lease payments exclude variable common area maintenance charges, insurance and taxes. Differences in estimated lease payments between June 30, 2019 and December 31, 2018 are primarily related to adjustments to account for certain build to suit leases that were accounted for as financing obligations under ASC 840 but are accounted for as operating leases under ASU 2016-02 and foreign currency exchange rate impacts.
(2) Includes capital lease and financing obligations associated with build to suit lease transactions at December 31, 2018.
Lessor, operating lease, maturity | The future minimum lease payments we expect to receive under non-cancellable data center operating leases, for which we are the lessor, excluding month to month leases, for the next five years are as follows:
| Future minimum lease payments
2019 (excluding the six months ended June 30, 2019) | $ | 103,016 |
2020 | 155,581 |
2021 | 111,945 |
2022 | 79,763 |
2023 | 61,684 |
Summary of stock option activity | A summary of stock option activity for the six months ended June 30, 2019 is as follows:
| Stock Options
Outstanding at December 31, 2018 | 4,271,834 |
Granted | 920,706 |
Exercised | (194,480 | )
Forfeited | (12,525 | )
Expired | (15,647 | )
Outstanding at June 30, 2019 | 4,969,888 |
Options exercisable at June 30, 2019 | 3,160,175 |
Options expected to vest | 1,704,441 |
Summary of restricted stock and RSU activity | The fair value of RSUs vested during the three and six months ended June 30, 2019 and 2018 is as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Fair value of RSUs vested | $ | 2,375 |  |  | $ | 676 |  |  | $ | 17,710 |  |  | $ | 16,006 |
A summary of RSU activity for the six months ended June 30, 2019 is as follows:
| RSUs
Non-vested at December 31, 2018 | 1,196,566 |
Granted | 731,801 |
Vested | (527,239 | )
Forfeited | (55,070 | )
Non-vested at June 30, 2019 | 1,346,058 |
Schedule of performance units | The fair value of earned PUs that vested during the three and six months ended June 30, 2019 and 2018 is as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Fair value of earned PUs that vested | $ | — |  |  | $ | — |  |  | $ | 6,503 |  |  | $ | 3,033 |
Summary of Performance Unit (PU) activity | A summary of PU activity for the six months ended June 30, 2019 is as follows:
| Original PU Awards |  | PU Adjustment(1) |  | Total PU Awards
Non-vested at December 31, 2018 | 967,049 |  |  | (299,948 | ) |  | 667,101 |
Granted | 380,856 |  |  | — |  |  | 380,856 |
Vested | (169,523 | ) |  | — |  |  | (169,523 | )
Forfeited/Performance or Market Conditions Not Achieved | (11,093 | ) |  | (14,850 | ) |  | (25,943 | )
Non-vested at June 30, 2019 | 1,167,289 |  |  | (314,798 | ) |  | 852,491 |
_______________________________________________________________________________ (1) Represents an increase or decrease in the number of original PUs awarded based on either the final performance criteria or market condition achievement at the end of the performance period of such PUs or a change in estimated awards based on the forecasted performance against the predefined targets.
Calculation of basic and diluted net income (loss) per share attributable to the entity | The calculation of basic and diluted income (loss) per share for the three and six months ended June 30, 2019 and 2018 are as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Income (loss) from continuing operations | $ | 92,347 |  |  | $ | 92,263 |  |  | $ | 122,823 |  |  | $ | 131,652 |
Less: Net income (loss) attributable to noncontrolling interests | 34 |  |  | 142 |  |  | 925 |  |  | 610 |
Income (loss) from continuing operations (utilized in numerator of Earnings Per Share calculation) | $ | 92,313 |  |  | $ | 92,121 |  |  | $ | 121,898 |  |  | $ | 131,042 |
Income (loss) from discontinued operations, net of tax | $ | 128 |  |  | $ | (360 | ) |  | $ | 104 |  |  | $ | (822 | )
Net income (loss) attributable to Iron Mountain Incorporated | $ | 92,441 |  |  | $ | 91,761 |  |  | $ | 122,002 |  |  | $ | 130,220 |
Weighted-average shares—basic | 286,925,000 |  |  | 285,984,000 |  |  | 286,727,000 |  |  | 285,622,000 |
Effect of dilutive potential stock options | 148,629 |  |  | 237,708 |  |  | 190,016 |  |  | 243,636 |
Effect of dilutive potential RSUs and PUs | 407,659 |  |  | 347,543 |  |  | 570,040 |  |  | 415,929 |
Weighted-average shares—diluted | 287,481,288 |  |  | 286,569,251 |  |  | 287,487,056 |  |  | 286,281,565 |
Earnings (losses) per share—basic: |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations | $ | 0.32 |  |  | $ | 0.32 |  |  | $ | 0.43 |  |  | $ | 0.46 |
Income (loss) from discontinued operations, net of tax | — |  |  | — |  |  | — |  |  | — |
Net income (loss) attributable to Iron Mountain Incorporated(1) | $ | 0.32 |  |  | $ | 0.32 |  |  | $ | 0.43 |  |  | $ | 0.46 |
Earnings (losses) per share—diluted: |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations | $ | 0.32 |  |  | $ | 0.32 |  |  | $ | 0.42 |  |  | $ | 0.46 |
Income (loss) from discontinued operations, net of tax | — |  |  | — |  |  | — |  |  | — |
Net income (loss) attributable to Iron Mountain Incorporated(1) | $ | 0.32 |  |  | $ | 0.32 |  |  | $ | 0.42 |  |  | $ | 0.45 |
Antidilutive stock options, RSUs and PUs, excluded from the calculation | 5,004,112 |  |  | 3,272,502 |  |  | 4,494,637 |  |  | 3,257,322 |
_______________________________________________________________________________ (1) Columns may not foot due to rounding.
Schedule of effective income tax rate reconciliation | Our effective tax rates for the three and six months ended June 30, 2019 and 2018 are as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019(1) |  | 2018(1) |  | 2019(1) |  | 2018(2)
Effective Tax Rate | 10.3 | % |  | 22.0 | % |  | 14.7 | % |  | 16.5 | %
_______________________________________________________________________________
(1) | The primary reconciling items between the federal statutory tax rate of 21.0% and our overall effective tax rate for the three and six months ended June 30, 2019 and for the three months ended June 30, 2018 were the benefit derived from the dividends paid deduction and the impact of differences in the tax rates at which our foreign earnings are subject, including foreign exchange gains and losses in different jurisdictions with different tax rates.
(2) The primary reconciling items between the federal statutory tax rate of 21.0% and our overall effective tax rate for the six months ended June 30, 2018 were the benefit derived from the dividends paid deduction, a discrete tax benefit of approximately $14,000 associated with the resolution of a tax matter and the impact of differences in the tax rates at which our foreign earnings are subject, including foreign exchange gains and losses in different jurisdictions with different tax rates.
Assets and liabilities carried at fair value measured on a recurring basis | The assets and liabilities carried at fair value measured on a recurring basis as of June 30, 2019 and December 31, 2018, respectively, are as follows:
|  |  |  | Fair Value Measurements at June 30, 2019 Using
Description |  | Total Carrying Value at June 30, 2019 |  | Quoted prices in active markets (Level 1) |  |  |  | Significant other observable inputs (Level 2) |  |  |  | Significant unobservable inputs (Level 3)
Money Market Funds(1) |  | $ | 4,418 |  |  | $ | — |  |  |  |  | $ | 4,418 |  |  |  |  | $ | — |
Trading Securities |  | 10,366 |  |  | 9,744 |  |  | (2) |  | 622 |  |  | (3) |  | — |
Interest Rate Swap Agreements Liabilities(5) |  | 8,578 |  |  | — |  |  |  |  | 8,578 |  |  |  |  | — |
|  |  |  | Fair Value Measurements at December 31, 2018 Using
Description |  | Total Carrying Value at December 31, 2018 |  | Quoted prices in active markets (Level 1) |  |  |  | Significant other observable inputs (Level 2) |  |  |  | Significant unobservable inputs (Level 3)
Time Deposits(1) |  | $ | 956 |  |  | $ | — |  |  |  |  | $ | 956 |  |  |  |  | $ | — |
Trading Securities |  | 10,753 |  |  | 10,248 |  |  | (2) |  | 505 |  |  | (3) |  | — |
Derivative Assets(4) |  | 93 |  |  | — |  |  |  |  | 93 |  |  |  |  | — |
Interest Rate Swap Agreements Liabilities(5) |  | 973 |  |  | — |  |  |  |  | 973 |  |  |  |  | — |
_______________________________________________________________________________
(1) | Money market funds and time deposits are measured based on quoted prices for similar assets and/or subsequent transactions.
(2) | Certain trading securities are measured at fair value using quoted market prices.
(3) | Certain trading securities are measured based on inputs that are observable other than quoted market prices.
(4) | Derivative assets and liabilities relate to short-term (six months or less) foreign currency contracts that we have entered into to hedge certain of our foreign exchange intercompany exposures. We calculate the value of such forward contracts by adjusting the spot rate utilized at the balance sheet date for translation purposes by an estimate of the forward points observed in active markets. As of June 30, 2019, we had no outstanding forward contracts. As of December 31, 2018, we had outstanding forward contracts to purchase 29,000 Euros and sell $33,374 United States dollars. We have not designated any of the forward contracts we have entered into as hedges.
(5) We have entered into interest rate swap agreements to limit our exposure to changes in interest rates on a portion of our floating rate indebtedness. As of June 30, 2019 and December 31, 2018, we had $350,000 in notional value of interest rate swap agreements outstanding, which expire in March 2022. Under the interest rate swap agreements, we receive variable rate interest payments associated with the notional amount of each interest rate swap, based upon one-month LIBOR, in exchange for the payment of fixed interest rate payments (at the fixed rate interest specified in the interest rate swap agreements). We have designated these interest rate swaps as cash flow hedges. Unrealized gains are recognized as assets while unrealized losses are recognized as liabilities. The fair value of the interest rate swaps are estimated using industry standard valuation models using market-based observable inputs, including interest rate curves.
Schedule of changes in accumulated other comprehensive items, net | The changes in accumulated other comprehensive items, net for the three and six months ended June 30, 2019, respectively, are as follows:
| Three Months Ended June 30, 2019 |  | Six Months Ended June 30, 2019
| Foreign Currency Translation Adjustments |  | Fair Value Adjustments for Interest Rate Swap Agreements |  | Total |  | Foreign Currency Translation Adjustments |  | Fair Value Adjustments for Interest Rate Swap Agreements |  | Total
Beginning of Period | $ | (247,313 | ) |  | $ | (3,647 | ) |  | $ | (250,960 | ) |  | $ | (264,691 | ) |  | $ | (973 | ) |  | $ | (265,664 | )
Other comprehensive (loss) income: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation adjustment(1) | (5,930 | ) |  | — |  |  | (5,930 | ) |  | 11,448 |  |  | — |  |  | 11,448 |
Fair value adjustments for interest rate swap agreements | — |  |  | (4,931 | ) |  | (4,931 | ) |  | — |  |  | (7,605 | ) |  | (7,605 | )
Total other comprehensive (loss) income | (5,930 | ) |  | (4,931 | ) |  | (10,861 | ) |  | 11,448 |  |  | (7,605 | ) |  | 3,843 |
End of Period | $ | (253,243 | ) |  | $ | (8,578 | ) |  | $ | (261,821 | ) |  | $ | (253,243 | ) |  | $ | (8,578 | ) |  | $ | (261,821 | )
_____________________________________________________________ (1) This amount includes foreign exchange losses (gains) of $4,280 and $(1,861) for the three and six months ended June 30, 2019, respectively, related to the change in fair value of the portion of our Euro Notes (as defined and discussed more fully in Note 4) designated as a hedge of net investment of certain of our Euro denominated subsidiaries. For the six months ended June 30, 2019, we designated, on average, 274,161 Euros of our Euro Notes as a hedge of net investment of certain of our Euro denominated subsidiaries. As of June 30, 2019, cumulative net gains of $16,119 net of tax, are recorded in accumulated other comprehensive items, net associated with this net investment hedge. The changes in accumulated other comprehensive items, net for the three and six months ended June 30, 2018, respectively, are as follows:
| Three Months Ended June 30, 2018 |  | Six Months Ended June 30, 2018
| Foreign Currency Translation Adjustments |  | Fair Value Adjustments for Interest Rate Swap Agreements |  | Total |  | Foreign Currency Translation Adjustments |  | Fair Value Adjustments for Interest Rate Swap Agreements |  | Total
Beginning of Period | $ | (73,897 | ) |  | $ | (185 | ) |  | $ | (74,082 | ) |  | $ | (103,989 | ) |  | $ | — |  |  | $ | (103,989 | )
Other comprehensive (loss) income: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation adjustment(1) | (135,756 | ) |  | — |  |  | (135,756 | ) |  | (105,664 | ) |  | — |  |  | (105,664 | )
Fair value adjustments for interest rate swap agreements | — |  |  | 2,388 |  |  | 2,388 |  |  | — |  |  | 2,203 |  |  | 2,203 |
Total other comprehensive (loss) income | (135,756 | ) |  | 2,388 |  |  | (133,368 | ) |  | (105,664 | ) |  | 2,203 |  |  | (103,461 | )
End of Period | $ | (209,653 | ) |  | $ | 2,203 |  |  | $ | (207,450 | ) |  | $ | (209,653 | ) |  | $ | 2,203 |  |  | $ | (207,450 | )
______________________________________________________________ (1) This amount includes foreign exchange gains of $10,257 and $4,622 for the three and six months ended June 30, 2018, respectively, related to the change in fair value of the portion of our Euro Notes designated as a hedge of net investment of certain of our Euro denominated subsidiaries. For the six months ended June 30, 2018, we designated, on average, 179,881 Euros of our Euro Notes as a hedge of net investment of certain of our Euro denominated subsidiaries.
Other expense (income), net | Other (income) expense, net for the three and six months ended June 30, 2019 and 2018 consists of the following:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Foreign currency transaction (gains) losses, net | $ | (19,331 | ) |  | $ | (18,624 | ) |  | $ | (1,634 | ) |  | $ | 3,161 |
Other, net | 4,139 |  |  | (432 | ) |  | 1,652 |  |  | (2,066 | )
| $ | (15,192 | ) |  | $ | (19,056 | ) |  | $ | 18 |  |  | $ | 1,095 |
Schedule of immaterial restatement | The following table sets forth the effect of the immaterial restatement to certain line items of our Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2018:
|  | Three Months Ended June 30, 2018 |  | Six Months Ended June 30, 2018
Selling, general and administrative |  | $ | 1,899 |  |  | $ | 9,339 |
Total Operating Expenses |  | $ | 1,899 |  |  | $ | 9,339 |
Operating Income (Loss) |  | $ | (1,899 | ) |  | $ | (9,339 | )
Interest Expense, Net |  | $ | 89 |  |  | $ | 165 |
Income (Loss) from Continuing Operations Before Provision (Benefit) for Income Taxes |  | $ | (1,988 | ) |  | $ | (9,504 | )
Provision (Benefit) for Income Taxes |  | $ | (348 | ) |  | $ | (1,639 | )
Income (Loss) from Continuing Operations |  | $ | (1,640 | ) |  | $ | (7,865 | )
Net Income (Loss) |  | $ | (1,640 | ) |  | $ | (7,865 | )
Net Income (Loss) Attributable to Iron Mountain Incorporated |  | $ | (1,640 | ) |  | $ | (7,865 | )
Earnings (Losses) per Share - Basic: |  |  |  |
Income (Loss) from Continuing Operations |  | $ | (0.01 | ) |  | $ | (0.03 | )
Net Income (Loss) from Continuing Operations Attributable to Iron Mountain |  | $ | (0.01 | ) |  | $ | (0.03 | )
Earnings (Losses) per Share - Diluted: |  |  |  |
Income (Loss) from Continuing Operations |  | $ | (0.01 | ) |  | $ | (0.03 | )
Net Income (Loss) from Continuing Operations Attributable to Iron Mountain |  | $ | (0.01 | ) |  | $ | (0.03 | )
The following table sets forth the effect of the immaterial restatement to certain line items of our Condensed Consolidated Balance Sheet as of December 31, 2018:
|  | December 31, 2018
Total Other Assets, Net |  | $ | 4,971 |
Total Assets |  | $ | 4,971 |
Accrued expenses and other current liabilities |  | $ | 28,097 |
Total Current Liabilities |  | $ | 28,097 |
(Distribution in excess of earnings) Earnings in excess of distributions |  | $ | (23,126 | )
Total Iron Mountain Incorporated Stockholders' Equity |  | $ | (23,126 | )

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