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Segment Information (Details) $ in Thousands |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Nov. 30, 2018 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Sep. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Dec. 31, 2019 USD ($) segment | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Segment Reporting [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments | segment |  |  |  |  |  |  |  |  |  | 3 |  |  |
Proceeds from Sale of Property Held-for-sale | $ 17,500 |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Sale of Properties | $ 8,800 |  |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ 262,510 | $ 309,932 | $ 304,853 | $ 259,244 | $ 241,845 | $ 284,178 | $ 308,007 | $ 244,780 | $ 1,136,539 | $ 1,078,809 | $ 977,025 |
Income from operations |  | 36,611 | 60,967 | 53,653 | 30,023 | 18,830 | 59,678 | 61,433 | 32,685 | 181,254 | 172,625 | 138,273 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 38,402 | 39,393 | 33,724 |
Impairment of goodwill |  | 0 | 0 | 0 | 0 | 6,686 | 0 | 0 | 0 | 0 | 6,686 | 0 |
Significant non-cash charges |  |  |  |  |  |  |  |  |  | 10,782 | 11,176 | 13,908 |
Provision for income taxes |  | 8,051 | $ 15,503 | $ 14,223 | $ 6,598 | 5,293 | $ 16,473 | $ 16,476 | $ 7,253 | 44,375 | 45,495 | 51,801 |
Capital expenditures and asset acquisitions, net of cash acquired |  |  |  |  |  |  |  |  |  | 40,176 | 31,317 | 85,962 |
Total assets |  | 1,095,366 |  |  |  | 1,021,663 |  |  |  | 1,095,366 | 1,021,663 | 1,037,523 |
Cash and short-term investments |  | 230,210 |  |  |  | 160,180 |  |  |  | $ 230,210 | 160,180 | 168,514 | $ 226,537
Concentration Risk, Percentage |  |  |  |  |  |  |  |  |  | 11.00% |  |  |
Administrative and all other |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | $ 0 | 0 | 0 |
Income from operations |  |  |  |  |  |  |  |  |  | (1,161) | 9,171 | 1,259 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 595 | 797 | 901 |
Impairment of goodwill |  |  |  |  |  |  |  |  |  |  | 0 |  |
Significant non-cash charges |  |  |  |  |  |  |  |  |  | 4,157 | 3,619 | 2,473 |
Provision for income taxes |  |  |  |  |  |  |  |  |  | 1,412 | 2,797 | 1,824 |
Capital expenditures and asset acquisitions, net of cash acquired |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Total assets |  | (374,019) |  |  |  | (280,430) |  |  |  | (374,019) | (280,430) | (150,970) |
Cash and short-term investments |  | 161,400 |  |  |  | 114,800 |  |  |  | 161,400 | 114,800 | 82,000 |
Intersegment elimination |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 30,809 | 32,344 | 24,911 |
North America |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 972,849 | 910,587 | 803,697 |
Income from operations |  |  |  |  |  |  |  |  |  | 176,329 | 168,139 | 132,995 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 30,652 | 30,505 | 25,745 |
Impairment of goodwill |  |  |  |  |  |  |  |  |  | 0 | 0 |  |
Significant non-cash charges |  |  |  |  |  |  |  |  |  | 5,273 | 6,340 | 9,861 |
Provision for income taxes |  |  |  |  |  |  |  |  |  | 40,452 | 39,638 | 47,434 |
Capital expenditures and asset acquisitions, net of cash acquired |  |  |  |  |  |  |  |  |  | 31,695 | 27,059 | 70,040 |
Total assets |  | 1,269,545 |  |  |  | 1,119,012 |  |  |  | 1,269,545 | 1,119,012 | 953,033 |
North America | Intersegment elimination |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 1,977 | 2,279 | 3,237 |
Europe |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 155,144 | 159,027 | 165,155 |
Income from operations |  |  |  |  |  |  |  |  |  | 6,817 | (2,656) | 2,723 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 5,457 | 6,297 | 5,832 |
Impairment of goodwill |  |  |  |  |  |  |  |  |  |  | 6,686 |  |
Significant non-cash charges |  |  |  |  |  |  |  |  |  | 1,141 | 1,169 | 1,509 |
Provision for income taxes |  |  |  |  |  |  |  |  |  | 1,934 | 2,947 | 2,124 |
Capital expenditures and asset acquisitions, net of cash acquired |  |  |  |  |  |  |  |  |  | 8,245 | 2,556 | 11,411 |
Total assets |  | 169,785 |  |  |  | 157,437 |  |  |  | 169,785 | 157,437 | 208,640 |
Europe | Intersegment elimination |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 2,068 | 1,773 | 959 |
Asia/Pacific |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 8,546 | 9,195 | 8,173 |
Income from operations |  |  |  |  |  |  |  |  |  | (731) | (2,029) | 1,296 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 1,698 | 1,794 | 1,246 |
Impairment of goodwill |  |  |  |  |  |  |  |  |  |  | 0 |  |
Significant non-cash charges |  |  |  |  |  |  |  |  |  | 211 | 48 | 65 |
Provision for income taxes |  |  |  |  |  |  |  |  |  | 577 | 113 | 419 |
Capital expenditures and asset acquisitions, net of cash acquired |  |  |  |  |  |  |  |  |  | 236 | 1,702 | 4,511 |
Total assets |  | 30,055 |  |  |  | $ 25,644 |  |  |  | 30,055 | 25,644 | 26,820 |
Asia/Pacific | Intersegment elimination |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 26,764 | $ 28,292 | $ 20,715 |
Foreign operating entities |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and short-term investments |  | $ 68,800 |  |  |  |  |  |  |  | $ 68,800 |  |  |
Percentage of cash and cash equivalents |  | 29.90% |  |  |  |  |  |  |  | 29.90% |  |  |

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