Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Valuation allowances	$ 203,040	$ 206,586
Deferred Tax Assets, Operating Loss Carryforwards	189,644	222,065
Current Assets:
Cash and cash equivalents	354,259	430,316
Accounts receivable, net of allowances for doubtful accounts		476,903
Inventory	194,507	215,282
Other Assets, Current	71,037	64,901
Prepaid Expense, Current	60,858	64,901
Total Current Assets	1,244,889	1,187,402
Property and Equipment, at cost	2,837,587	2,815,579
Less accumulated depreciation	1,872,917	1,751,375
Net Property and Equipment	964,670	1,064,204
Other Assets:
Goodwill	413,121	455,599
Other non-current assets	202,318	316,745
Total Other Assets	615,439	772,344
Total Assets	2,824,998	3,023,950
Current Liabilities:
Accounts payable	102,636	85,539
Accrued liabilities	392,105	350,258
Total Current Liabilities	494,741	435,797
Long-term Debt	786,580	792,312
Other Long-term Liabilities		131,323
Commitments and Contingencies
Stockholders' Equity:
Common Stock, par value $0.25	27,709	27,709
Additional paid-in capital	220,421	225,125
Treasury stock	(704,066)	(718,946)
Retained earnings	2,204,548	2,417,412
Accumulated other comprehensive income	(339,377)	(292,136)
Total Shareholders' Equity	1,409,235	1,659,164
Stockholders' Equity Attributable to Noncontrolling Interest	6,063	5,354
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,415,298	1,664,518
Total Liabilities and Sharesholders' Equity	$ 2,824,998	$ 3,023,950