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Derivative Instruments (Tables) | 6 Months Ended
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Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule Of Derivatives At Fair Value | Derivatives recorded at fair value on our condensed consolidated balance sheets consisted of the following (in millions):
| Derivative Assets |  | Derivative Liabilities
| June 30, 2018 |  | December 31, 2017 |  | June 30, 2018 |  | December 31, 2017
Derivatives Designated as Hedging Instruments |  |  |  |  |  |  |  |  |  |
Foreign currency forward contracts - current(1) | $ | .7 |  |  | $ | 5.9 |  |  | $ | 5.1 |  |  | $ | .2 |
Foreign currency forward contracts - non-current(2) | — |  |  | .5 |  |  | 1.1 |  |  | .1 |
| .7 |  |  | 6.4 |  |  | 6.2 |  |  | .3 |
Derivatives Not Designated as Hedging Instruments |  |  |  |  |  |  |  |  |  |
Foreign currency forward contracts - current(1) | .6 |  |  | .9 |  |  | 1.6 |  |  | .2 |
Total | $ | 1.3 |  |  | $ | 7.3 |  |  | $ | 7.8 |  |  | $ | .5 |
(1) | Derivative assets and liabilities with maturity dates equal to or less than twelve months from the respective balance sheet date were included in other current assets and accrued liabilities and other, respectively, on our condensed consolidated balance sheets.
(2) | Derivative assets and liabilities with maturity dates greater than twelve months from the respective balance sheet date were included in other assets and other liabilities, respectively, on our condensed consolidated balance sheets.
Gains And Losses On Derivatives Designated As Cash Flow Hedges | Gains and losses, net of tax, on derivatives designated as cash flow hedges included in our condensed consolidated statements of operations and comprehensive income (loss) were as follows (in millions): Three Months Ended June 30, 2018 and 2017
| Gain (Loss) Recognized in Other Comprehensive Income (Loss) (Effective Portion) |  | Gain (Loss) Reclassified from Accumulated Other Comprehensive Income ("AOCI") into Income (Effective Portion)(1) |  | Loss Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing)(2)
| 2018 |  | 2017 |  | 2018 |  | 2017 |  | 2018 |  | 2017
Interest rate lock contracts(3) | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (.1 | ) |  | $ | — |  |  | $ | — |
Foreign currency forward contracts(4) | (7.6 | ) |  | 2.9 |  |  | .7 |  |  | (.2 | ) |  | (1.0 | ) |  | (.5 | )
Total | $ | (7.6 | ) |  | $ | 2.9 |  |  | $ | .7 |  |  | $ | (.3 | ) |  | $ | (1.0 | ) |  | $ | (.5 | )
Six Months Ended June 30, 2018 and 2017
| Gain (Loss) Recognized in Other Comprehensive Income (Loss) (Effective Portion) |  | Gain (Loss) Reclassified from AOCI into Income (Effective Portion)(1) |  | Loss Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing)(2)
| 2018 |  | 2017 |  | 2018 |  | 2017 |  | 2018 |  | 2017
Interest rate lock contracts(3) | $ | — |  |  | $ | — |  |  | $ | (.1 | ) |  | $ | (.2 | ) |  | $ | — |  |  | $ | — |
Foreign currency forward contracts(5) | (4.9 | ) |  | 6.0 |  |  | 3.0 |  |  | (1.0 | ) |  | (1.2 | ) |  | (.4 | )
Total | $ | (4.9 | ) |  | $ | 6.0 |  |  | $ | 2.9 |  |  | $ | (1.2 | ) |  | $ | (1.2 | ) |  | $ | (.4 | )
(1) | Changes in the effective portion of cash flow hedge fair values are recorded in AOCI. Amounts recorded in AOCI associated with cash flow hedges are subsequently reclassified into contract drilling, depreciation or interest expense as earnings are affected by the underlying hedged forecasted transaction.
(2) | Gains and losses recognized in income for ineffectiveness and amounts excluded from effectiveness testing were included in other, net, in our condensed consolidated statements of operations.
(3) | Losses on interest rate lock derivatives reclassified from AOCI into income were included in interest expense, net, in our condensed consolidated statements of operations.
(4) | During the three-month period ended June 30, 2018, there were $500,000 of gains reclassified from AOCI into contract drilling expense and $200,000 of gains were reclassified from AOCI into depreciation expense in our condensed consolidated statement of operations. During the three-month period ended June 30, 2017, $400,000 of losses were reclassified from AOCI into contract drilling expense and $200,000 of gains were reclassified from AOCI into depreciation expense in our condensed consolidated statement of operations.
(5) | During the six-month period ended June 30, 2018, $2.6 million of gains were reclassified from AOCI into contract drilling expense and $400,000 of gains were reclassified from AOCI into depreciation expense in our condensed consolidated statement of operations. During the six-month period ended June 30, 2017, $1.4 million of losses were reclassified from AOCI into contract drilling expense and $400,000 of gains were reclassified from AOCI into depreciation expense in our condensed consolidated statement of operations.

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- Definition Tabular disclosure of the effective portion of gains and losses on derivative instruments (and nonderivative instruments) designated and qualifying in cash flow hedges recorded in accumulated other comprehensive income (loss) during the term of the hedging relationship and reclassified into earnings during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41641-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41678-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41638-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5580258-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579245-113959 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579240-113959 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41620-113959 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(n)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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