Equity (Details) - Changes in AOCI by Component (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	[1]	$ (42,328)	$ 8,552	$ (21,170)	$ 8,345
Change in AOCI before reclassifications to income	[1]	5,628	774	(16,336)	364
Reclassifications from AOCI to income during the period	[1],[2],[3]	1,083	627	1,889	1,244
Other comprehensive income (loss), net of tax	[1]	6,711	1,401	(14,447)	1,608
Ending balance	[1]	(35,617)	9,953	(35,617)	9,953
Interest Rate Swaps
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	[1]	(2,844)	(3,433)	(1,740)	(3,903)
Change in AOCI before reclassifications to income	[1]	(596)	(102)	(2,453)	(234)
Reclassifications from AOCI to income during the period	[1],[2],[3]	1,030	613	1,783	1,215
Other comprehensive income (loss), net of tax	[1]	434	511	(670)	981
Ending balance	[1]	(2,410)	(2,922)	(2,410)	(2,922)
Defined Benefit Pension Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	[1]	(5,975)	(1,796)	(6,028)	(1,811)
Change in AOCI before reclassifications to income	[1]	0	0	0	0
Reclassifications from AOCI to income during the period	[1],[2],[3]	53	14	106	29
Other comprehensive income (loss), net of tax	[1]	53	14	106	29
Ending balance	[1]	(5,922)	(1,782)	(5,922)	(1,782)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	[1]	(33,509)	13,781	(13,402)	14,059
Change in AOCI before reclassifications to income	[1]	6,224	876	(13,883)	598
Reclassifications from AOCI to income during the period	[1],[2],[3]	0	0	0	0
Other comprehensive income (loss), net of tax	[1]	6,224	876	(13,883)	598
Ending balance	[1]	$ (27,285)	$ 14,657	$ (27,285)	$ 14,657

[1] Amounts in parentheses represent debits (deferred losses).

[2] The reclassifications related to defined benefit pension plans were recorded in Selling, general and administrative expense, net of tax effect. See Note 11 – Employee Benefits for information regarding the Company’s defined benefit pension plans.

[3] The reclassifications related to interest rate swaps (cash flow hedges) were recorded in Interest expense, net of tax effect. See Note 9 – Derivatives and Hedging for information regarding the hedges.