Summary of Significant Accounting Policies - Schedule of Changes in Carrying Value of Goodwill, by Reportable Operating Segment (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	May 30, 2017	Dec. 31, 2016
Goodwill
Goodwill	$ 4,070,656		$ 3,905,021
Gross amount of goodwill [Roll Forward]
Beginning balance	4,219,868
Deductible goodwill acquired during the year	1,746
Non-deductible goodwill acquired during the year	59,651
Fair value and other adjustments	5,198
Currency effects	104,039
Ending balance	4,386,987
Goodwill accumulated amortization [Roll Forward]
Accumulated amortization. beginning balance	314,847
Currency effects	1,484
Accumulated amortization. ending balance	316,331
Accumulated goodwill impairment, beginning balance	132,409
Accumulated goodwill impairment, ending balance	132,409
North American Records and Information Management Business
Goodwill
Goodwill	2,270,654		2,280,911
Gross amount of goodwill [Roll Forward]
Beginning balance	2,485,806
Deductible goodwill acquired during the year	409
Non-deductible goodwill acquired during the year	0
Fair value and other adjustments	(24,801)
Currency effects	14,670
Ending balance	2,476,084
Goodwill accumulated amortization [Roll Forward]
Accumulated amortization. beginning balance	204,895
Currency effects	535
Accumulated amortization. ending balance	205,430
Accumulated goodwill impairment, beginning balance	85,909
Accumulated goodwill impairment, ending balance	85,909
North American Data Management Business
Goodwill
Goodwill	523,863		505,690
Gross amount of goodwill [Roll Forward]
Beginning balance	559,443
Deductible goodwill acquired during the year	0
Non-deductible goodwill acquired during the year	13,919
Fair value and other adjustments	208
Currency effects	4,180
Ending balance	577,750
Goodwill accumulated amortization [Roll Forward]
Accumulated amortization. beginning balance	53,753
Currency effects	134
Accumulated amortization. ending balance	53,887
Accumulated goodwill impairment, beginning balance	0
Accumulated goodwill impairment, ending balance	0
Western European Business
Goodwill
Goodwill	409,206		349,421
Gross amount of goodwill [Roll Forward]
Beginning balance	405,571
Deductible goodwill acquired during the year	0
Non-deductible goodwill acquired during the year	16,947
Fair value and other adjustments	9,749
Currency effects	33,889
Ending balance	466,156
Goodwill accumulated amortization [Roll Forward]
Accumulated amortization. beginning balance	56,150
Currency effects	800
Accumulated amortization. ending balance	56,950
Accumulated goodwill impairment, beginning balance	46,500
Accumulated goodwill impairment, ending balance	46,500
Other International Business
Goodwill
Goodwill	838,395		743,077
Gross amount of goodwill [Roll Forward]
Beginning balance	743,126
Deductible goodwill acquired during the year	620
Non-deductible goodwill acquired during the year	26,886
Fair value and other adjustments	20,042
Currency effects	51,300
Ending balance	838,459
Goodwill accumulated amortization [Roll Forward]
Accumulated amortization. beginning balance	49
Currency effects	15
Accumulated amortization. ending balance	64
Accumulated goodwill impairment, beginning balance	0
Accumulated goodwill impairment, ending balance	0
Corporate and Other
Goodwill
Goodwill	28,538		$ 25,922
Gross amount of goodwill [Roll Forward]
Beginning balance	25,922
Deductible goodwill acquired during the year	717
Non-deductible goodwill acquired during the year	1,899
Fair value and other adjustments	0
Currency effects	0
Ending balance	28,538
Goodwill accumulated amortization [Roll Forward]
Accumulated amortization. beginning balance	0
Currency effects	0
Accumulated amortization. ending balance	0
Accumulated goodwill impairment, beginning balance	0
Accumulated goodwill impairment, ending balance	0
Russia and Ukraine Divestment | Disposal Group, Not Discontinued Operations
Gross amount of goodwill [Roll Forward]
Disposal Group, Including Discontinued Operation, Goodwill	(3,515)	$ (3,515)
Russia and Ukraine Divestment | Disposal Group, Not Discontinued Operations | North American Records and Information Management Business
Gross amount of goodwill [Roll Forward]
Disposal Group, Including Discontinued Operation, Goodwill	0
Russia and Ukraine Divestment | Disposal Group, Not Discontinued Operations | North American Data Management Business
Gross amount of goodwill [Roll Forward]
Disposal Group, Including Discontinued Operation, Goodwill	0
Russia and Ukraine Divestment | Disposal Group, Not Discontinued Operations | Western European Business
Gross amount of goodwill [Roll Forward]
Disposal Group, Including Discontinued Operation, Goodwill	0
Russia and Ukraine Divestment | Disposal Group, Not Discontinued Operations | Other International Business
Gross amount of goodwill [Roll Forward]
Disposal Group, Including Discontinued Operation, Goodwill	(3,515)
Russia and Ukraine Divestment | Disposal Group, Not Discontinued Operations | Corporate and Other
Gross amount of goodwill [Roll Forward]
Disposal Group, Including Discontinued Operation, Goodwill	$ 0