Cost Optimization Plans (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Organizational Restructuring
Restructuring
Restructuring charges		$ 0	$ 3,475,000	$ 23,400,000
Restructuring cost accrual		2,291,000
Organizational Restructuring | North American Records and Information Management Business
Restructuring
Restructuring charges		0	1,560,000	12,600,000
Organizational Restructuring | North American Data Management Business
Restructuring
Restructuring charges		0	340,000	2,100,000
Organizational Restructuring | Western European Business
Restructuring
Restructuring charges		0	33,000	2,300,000
Organizational Restructuring | International Business
Restructuring
Restructuring charges		0	0	1,400,000
Organizational Restructuring | Corporate and Other
Restructuring
Restructuring charges		0	1,542,000	5,000,000
Organizational Restructuring | Cost of sales (excluding depreciation and amortization)
Restructuring
Restructuring charges		0	1,228,000	3,400,000
Organizational Restructuring | Selling, general and administrative expenses
Restructuring
Restructuring charges		0	2,247,000	20,000,000
Transformation Initiative
Restructuring
Restructuring charges		10,167,000	0	0
Transformation Initiative | North American Records and Information Management Business
Restructuring
Restructuring charges		5,403,000	0	0
Transformation Initiative | North American Data Management Business
Restructuring
Restructuring charges		241,000	0	0
Transformation Initiative | Western European Business
Restructuring
Restructuring charges		1,537,000	0	0
Transformation Initiative | International Business
Restructuring
Restructuring charges		0	0	0
Transformation Initiative | Corporate and Other
Restructuring
Restructuring charges		2,986,000	0	0
Transformation Initiative | Cost of sales (excluding depreciation and amortization)
Restructuring
Restructuring charges		0	0	0
Transformation Initiative | Selling, general and administrative expenses
Restructuring
Restructuring charges		$ 10,167,000	$ 0	$ 0
Scenario, Forecast [Member]
Restructuring
Restructuring charges	$ 7,000
Scenario, Forecast [Member] | North American Records and Information Management Business
Restructuring
Restructuring charges	4,400
Scenario, Forecast [Member] | North American Data Management Business
Restructuring
Restructuring charges	700
Scenario, Forecast [Member] | Western European Business
Restructuring
Restructuring charges	100
Scenario, Forecast [Member] | Corporate and Other
Restructuring
Restructuring charges	$ 1,800