Divestitures (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2014 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill allocated to divested operations		$ (7,750)
International Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill allocated to divested operations		(3,718)
International Business | International Shredding Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Divestiture cash consideration received	$ 26,200	26,200
Portion of purchase price for acquisition that was deposited in escrow	1,500	$ 1,500
Gain on divestiture	6,900
Gain on divestiture, inclusive of tax credit	$ 10,200
Maximum facility revenue as a percentage of consolidated revenues	1.00%
Goodwill allocated to divested operations	$ (7,750)