XML 91 R26.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Components of Accumulated Other Comprehensive Loss | 12 Months Ended
--- | ---
Dec. 31, 2012
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] |
Components of Accumulated Other Comprehensive Loss | Components of Accumulated Other Comprehensive Loss Accumulated other comprehensive loss is included on the Consolidated Statements of Stockholders' Equity. The components of Accumulated other comprehensive loss, net of the effect of income taxes, are as follows: Accumulated Other Comprehensive Loss—Net of Tax
|  | December 31
(In thousands) |  | 2012 |  | 2011
Cumulative foreign exchange translation adjustments |  | $ | 62,308 |  |  | $ | 51,313 |
Effective portion of cash flow hedges |  | (8,139 | ) |  | (3,807 | )
Cumulative unrecognized actuarial losses on pension obligations |  | (465,286 | ) |  | (411,641 | )
Unrealized loss on marketable securities |  | (51 | ) |  | (56 | )
Accumulated other comprehensive loss |  | $ | (411,168 | ) |  | $ | (364,191 | )

X
- Definition The entire disclosure for comprehensive income. + References No definition available. + Details
Name: | hsc_ComprehensiveIncomeDisclosureTextBlock
Namespace Prefix: | hsc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ComprehensiveIncomeNetOfTaxAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration