Business Segment Information - Net Revenues and Long-Lived Assets, Related To Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015		Sep. 30, 2015	[1]	Jun. 30, 2015	[1]	Mar. 31, 2015	[1]	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Geographic Information [Abstract]
Net revenues	$ 786,256	$ 747,591	$ 725,806	$ 769,126	$ 726,726	[1]	$ 738,693		$ 792,737		$ 762,571		$ 3,028,779	$ 3,020,727	$ 3,005,366
Long-lived assets	3,424,760				3,449,947								3,424,760	3,449,947
United States [Member]
Geographic Information [Abstract]
Net revenues													1,901,571	1,829,518	1,779,422
Long-lived assets	3,388,221				3,410,491								3,388,221	3,410,491
International [Member]
Geographic Information [Abstract]
Net revenues													1,127,208	1,191,209	$ 1,225,944
Long-lived assets	$ 36,539				$ 39,456								$ 36,539	$ 39,456

[1] Certain prior-period amounts have been revised, see Note 2 for a discussion of the revision.