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v3.19.1

Segments - Reconciliation of Net Income to Gross Margin (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Reconciliation Net Income (Loss) to Gross Margin |  |
Total gross margin | $ 117,522 | $ 105,108
Less: |  |
Selling, general and administrative | 28,989 | 27,508
Depreciation and amortization | 44,106 | 44,455
Long-lived asset impairment | 3,092 | 4,710
Restatement and other charges | 421 | 485
Interest expense | 23,617 | 22,547
Merger-related costs | 180 | 4,125
Other income, net | (205) | (1,145)
Income before income taxes | $ 17,322 | $ 2,423

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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity, excluding depreciation and amortization expense. Gross margin is a non-GAAP financial measure. + References No definition available. + Details
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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
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