Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Consolidated Statements Of Operations [Abstract]
Net revenues		$ 223,405	$ 268,809	$ 514,414	$ 451,257
Operating expenses		117,395	197,363	292,784	332,813
Marketing and selling expenses		17,497	24,876	40,174	48,020
General and administrative expenses		21,997	23,622	50,747	47,915
Depreciation and amortization	[1]	10,768	5,838	21,668	12,258
Operating income		55,748	17,110	109,041	10,251
Interest expense		9,179	4,009	17,330	10,348
Other income (expense), net		8,483	781	(1,937)	2,630
Income before income taxes		55,052	13,882	89,774	2,533
Provision for income taxes		11,263	3,468	19,812	515
Net income		$ 43,789	$ 10,414	$ 69,962	$ 2,018
Earnings per share: basic		$ 0.57	$ 0.13	$ 0.90	$ 0.03
Earnings per share: diluted		$ 0.52	$ 0.11	$ 0.83	$ 0.02
Weighted average common shares outstanding:
Basic		77,416	78,047	77,376	78,044
Diluted		83,859	91,100	84,514	91,107
Dividends declared per common share (Class A and B)		$ 0.12	$ 0.12	$ 0.24	$ 0.24

[1] Depreciation and amortization for the three and six months ended June 30, 2020 includes $2,266 and $4,532, respectively, of amortization related to the right-of-use asset for the Company’s new global headquarters lease, which commenced on July 1, 2019 and is accounted for as a finance lease.