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Derivative Instruments (Tables) | 6 Months Ended
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Jun. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items] |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value | As of June 30, 2017 and December 31, 2016, the fair value carrying amount of the Company's derivative instruments are recorded as follows (dollars in thousands):
|  |  |  | Asset / (Liability) Derivatives
|  | Balance Sheet Caption |  | June 30, 2017 |  | December 31, 2016
Derivatives designated as hedging instruments |  |  |  |  |  |
Interest rate swaps |  | Prepaid expenses and other current assets |  | $ | 160 |  |  | $ | 160 |
Interest rate swaps |  | Accrued liabilities |  | (1,030 | ) |  | (870 | )
Interest rate swaps |  | Other long-term liabilities |  | (3,240 | ) |  | (3,360 | )
Total derivatives designated as hedging instruments |  | $ | (4,110 | ) |  | $ | (4,070 | )
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance | The following table summarizes the loss recognized in accumulated other comprehensive income or loss ("AOCI") as of June 30, 2017 and December 31, 2016, and the amounts reclassified from AOCI into earnings for the three and six months ended June 30, 2017 and 2016 (dollars in thousands):
| Amount of Loss Recognized in AOCI on Derivative (Effective Portion, net of tax) |  |  |  | Amount of Loss Reclassified from AOCI into Earnings
|  |  |  | Three months ended June 30, |  | Six months ended June 30,
| As of June 30, 2017 |  | As of December 31, 2016 |  | Location of Loss Reclassified from AOCI into Earnings (Effective Portion) |  | 2017 |  | 2016 |  | 2017 |  | 2016
Derivatives designated as hedging instruments |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps | $ | (2,540 | ) |  | $ | (2,520 | ) |  | Interest expense |  | $ | (90 | ) |  | $ | (110 | ) |  | $ | (340 | ) |  | $ | (220 | )
Fair Value Measurements, Recurring and Nonrecurring | Fair value measurements and the fair value hierarchy level for the Company's assets and liabilities measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016 are shown below (dollars in thousands):
| Description |  | Frequency |  | Asset / (Liability) |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
June 30, 2017 | Interest rate swaps |  | Recurring |  | $ | (4,110 | ) |  | $ | — |  |  | $ | (4,110 | ) |  | $ | — |
December 31, 2016 | Interest rate swaps |  | Recurring |  | $ | (4,070 | ) |  | $ | — |  |  | $ | (4,070 | ) |  | $ | — |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI http://asc.fasb.org/extlink&oid=66048111&loc=SL7498348-110258 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: 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=64837297&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959 + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: 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=64837297&loc=SL5624163-113959 + Details
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