Annual report pursuant to Section 13 and 15(d)

Income Taxes, Schedule of Deferred Tax Assets and Liabilities (Details)

v3.6.0.2
Income Taxes, Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Deferred income tax assets:    
Accounts receivable, allowance $ 197 $ 198
Inventories 8,273 9,530
Accrued liabilities and other 1,564 1,605
Post-retirement benefits 16,623 18,437
Derivative instruments designated as cash flow hedges 721 800
Non-current accrued liabilities and other 20,970 24,383
Net operating loss carryover 23,923 21,212
Tax credits 1,141 1,150
Other 6,999 4,332
Deferred income tax assets 80,411 81,647
Deferred income tax liabilities:    
Deferred gain on the Offering of the Partnership 50,115 50,178
Deferred charges 358 401
Unrealized gains (1,208) 4,645
Property, plant and equipment 369,406 370,225
Other non-current 16,233 11,631
Intangibles 12,506 11,361
Deferred income tax liabilities $ 447,410 $ 448,441