Summary of Significant Accounting Policies - Revision of Previously Issued Financial Statements (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Goodwill	$ 3,546,034	$ 3,713,182	$ 1,535,672
Other intangibles, net	2,183,595	2,386,242
Deferred income taxes	713,428	799,939
Accumulated other comprehensive loss	(570,811)	(291,508)
Other comprehensive loss	(279,303)	(223,691)	(64,471)
Total comprehensive income (loss)	83,128	145,016	220,030
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	30,626	41,716	(5,453)
Accounts payable, accrued expenses and customer deposits	30,023	(185,875)	11,635
Net cash provided by operating activities	$ 754,584	608,334	375,685
Scenario, Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Goodwill		3,811,862
Other intangibles, net		2,437,367
Deferred income taxes		815,169
Accumulated other comprehensive loss		(156,933)
Other comprehensive loss		(109,507)	(44,080)
Total comprehensive income (loss)		259,200	240,421
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes		(41,716)
Accounts payable, accrued expenses and customer deposits		(102,443)
Net cash provided by operating activities		(144,159)
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Goodwill		(98,680)
Other intangibles, net		(51,125)
Deferred income taxes		(15,230)
Accumulated other comprehensive loss		(134,575)
Other comprehensive loss		(114,184)	(20,391)
Total comprehensive income (loss)		(114,184)	$ (20,391)
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes		83,432
Accounts payable, accrued expenses and customer deposits		(83,432)
Scenario Revised [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes		41,716
Accounts payable, accrued expenses and customer deposits		(185,875)
Net cash provided by operating activities		$ (144,159)