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CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018 | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Assets |  |  |  |
Cash and cash equivalents | $ 187,385 | $ 197,755 | $ 151,426 | $ 183,727
Accounts receivable, net | 234,127 | 223,176 |  |
Contract assets | 57,869 | 57,447 |  |
Inventories | 102,379 | 85,904 |  |
Income taxes prepaid and receivable | 6,818 | 7,473 |  |
Prepaid expenses and other current assets | 23,696 | 21,294 |  |
Total current assets | 612,274 | 593,049 |  |
Property, plant and equipment, net | 460,520 | 462,055 |  |
Intangibles, net | 47,646 | 49,206 |  |
Goodwill | 163,438 | 164,382 |  |
Deferred income taxes | 63,736 | 62,622 |  |
Noncurrent receivables | 45,354 | 45,061 |  |
Other assets | 50,313 | 41,617 |  |
Total assets | 1,443,281 | 1,417,992 |  |
LIABILITIES AND SHAREHOLDERS' EQUITY |  |  |  |
Accounts payable | 74,050 | 52,246 |  |
Accrued liabilities | 122,342 | 129,030 |  |
Current maturities of long-term debt | 19 | 1,224 |  |
Income taxes payable | 8,387 | 6,806 |  |
Total current liabilities | 204,798 | 189,306 |  |
Long-term debt | 491,022 | 523,707 |  |
Other noncurrent liabilities | 112,726 | 88,277 |  |
Deferred taxes and other liabilities | 8,328 | 8,422 |  |
Total liabilities | 816,874 | 809,712 |  |
SHAREHOLDERS' EQUITY |  |  |  |
Preferred stock, par value $5.00 per share; authorized 2,000,000 shares; none issued |  |  |  |
Additional paid in capital | 430,052 | 430,555 |  |
Retained earnings | 613,057 | 589,645 |  |
Accumulated items of other comprehensive income: |  |  |  |
Translation adjustments | (116,630) | (115,976) |  |
Pension and postretirement liability adjustments | (48,596) | (47,109) |  |
Derivative valuation adjustment | 1,846 | 4,697 |  |
Treasury stock (Class A), at cost; 8,418,620 shares in 2019 and in 2018 | (256,603) | (256,603) |  |
Total Company shareholders' equity | 623,166 | 605,249 |  |
Noncontrolling interest | 3,241 | 3,031 |  |
Total equity | 626,407 | 608,280 | $ 592,578 | $ 57,301
Total liabilities and shareholders' equity | 1,443,281 | 1,417,992 |  |
Common Class A [Member] |  |  |  |
SHAREHOLDERS' EQUITY |  |  |  |
Common Stock | 37 | 37 |  |
Common Class B [Member] |  |  |  |
SHAREHOLDERS' EQUITY |  |  |  |
Common Stock | $ 3 | $ 3 |  |

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