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Adoption of ASC 842, "Leases" (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018 | Dec. 30, 2018
Lessee, Lease, Description [Line Items] |  |  |
Election of package of practical expedients | true |  |
Election of hindsight practical expedient | false |  |
Assets |  |  |
Prepaid expenses | $ 22,488 | $ 25,707 | $ 30,376
Right-of-use assets | 150,216 | 161,027 |
Current liabilities: |  |  |
Current lease liabilities | 22,546 | 25,348 |
Long-term liabilities: |  |  |
Long-term lease liabilities | 130,391 | 137,511 |
Other long-term liabilities | $ 75,887 | 72,823 | 79,324
Total Adjustments |  |  |
Assets |  |  |
Prepaid expenses |  |  | $ 441
Accounting Standards Update 2016-02 | Total Adjustments |  |  |
Assets |  |  |
Prepaid expenses |  | (4,669) |
Right-of-use assets |  | 161,027 |
Current liabilities: |  |  |
Current lease liabilities |  | 25,348 |
Long-term liabilities: |  |  |
Long-term lease liabilities |  | 137,511 |
Other long-term liabilities |  | $ (6,501) |

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- Definition Indicates (true false) whether practical expedient is elected to use hindsight in determining lease term and in assessing impairment of right-of-use asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=113997351&loc=SL77916155-209984 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=113997351&loc=SL77916155-209984 + Details
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- Definition Indicates (true false) whether practical expedients are elected for not reassessing whether any expired or existing contract is or contains lease, lease classification for expired or existing lease, and initial direct cost for any existing lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=113997351&loc=SL77916155-209984 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=113997351&loc=SL77916155-209984 + Details
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