CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating Activities:
Net income	$ 141,134	$ 100,618
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation	65,550	66,367
Amortization of intangibles	8,923	6,805
Gain on sale of business	(189,910)	0
Impairment charges	2,188	0
Share-based compensation expense	6,482	10,342
Equity in earnings of affiliates, net of dividends related to earnings	668	1,573
Loss on refinancing and extinguishment of debt	0	770
Deferred income taxes	19,117	1,420
Other	2,030	1,029
Changes in operating assets and liabilities	(65,148)	(90,613)
Net cash (used in) provided by operating activities	(8,966)	98,311
Investing activities:
Capital expenditures	(95,496)	(106,699)
Acquisition of businesses, net of cash acquired	(452)	(6,195)
Proceeds from sale of business	243,362	0
Proceeds from sale of fixed assets and other	2,099	(139)
Net cash provided by (used in) investing activities	149,513	(113,033)
Financing activities:
Principal payments on long-term debt	(2,067)	(2,062)
(Decrease) increase in short-term debt, net	(47,351)	224
Purchase of noncontrolling interests	(4,797)	(2,450)
Repurchase of common stock	(36,550)	(43,525)
Taxes withheld and paid on employees' share-based payment awards	(2,733)	(11,279)
Contribution from noncontrolling interest and other	2,277	(327)
Net cash used in financing activities	(91,221)	(59,419)
Effects of exchange rate changes on cash, cash equivalents and restricted cash	(2,882)	(865)
Changes in cash, cash equivalents and restricted cash	46,444	(75,006)
Cash, cash equivalents and restricted cash at beginning of period	267,399	518,461
Cash, cash equivalents and restricted cash at end of period	$ 313,843	$ 443,455