FAIR VALUE MEASUREMENTS: (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of carrying value and fair value of notes and debentures

The carrying value and fair value of our notes and debentures for the periods presented (in thousands):

	As of March 31, 2016				As of December 31, 2015
	Carrying Value		Fair Value		Carrying Value		Fair Value
Level 2:
6.375% Senior Unsecured Notes due 2021	$	350,000	$	373,625	$	350,000	$	367,325
6.125% Senior Unsecured Notes due 2022	500,000		526,250		500,000		512,500
5.875% Senior Unsecured Notes due 2026	350,000		360,063		—		—
5.625% Senior Unsecured Notes due 2024	550,000		559,284		550,000		539,000
5.375% Senior Unsecured Notes due 2021	600,000		619,500		600,000		605,658
Term Loan A	304,433		301,008		313,620		308,916
Term Loan B	1,372,711		1,367,706		1,376,007		1,365,461
Debt of variable interest entities	25,811		25,811		26,682		26,682
Debt of other operating divisions	122,637		122,637		120,969		120,969