Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 393,190	$ 385,235
Accounts receivable, net of allowances for doubtful accounts	547,125	612,785
Inventory	343,023	328,453
Other current assets	132,018	191,020
Total Current Assets	1,415,356	1,517,493
Property and Equipment, at cost	2,820,064	2,772,580
Less accumulated depreciation	1,610,044	1,505,849
Net Property and Equipment	1,210,020	1,266,731
Other Assets:
Goodwill	438,906	426,872
Other non-current assets	254,922	218,440
Total Other Assets	693,828	645,312
Total Assets	3,319,204	3,429,536
Current Liabilities:
Accounts payable	100,006	118,277
Accrued liabilities	396,432	477,284
Income taxes payable	1,157	20,395
Total Current Liabilities	497,595	615,956
Long-term Debt	802,338	795,836
Other Long-term Liabilities	427,634	439,010
Commitments and Contingencies
Stockholders' Equity:
Common Stock	27,709	27,709
Additional paid-in capital	221,466	230,179
Treasury stock, at cost	(731,256)	(743,577)
Retained earnings	2,359,246	2,364,786
Accumulated other comprehensive income	(285,528)	(300,363)
Total Shareholders' Equity	1,591,637	1,578,734
Total Liabilities and Sharesholders' Equity	$ 3,319,204	$ 3,429,536