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v2.4.1.9

Subsequent Events (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended | 0 Months Ended | 1 Months Ended
--- | --- | --- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2014 | Apr. 21, 2015 | Apr. 30, 2015
Subsequent Event [Line Items] |  |  |  |  |
Cash dividends declared per common share (in dollars per share) | $ 0.140 us-gaap_CommonStockDividendsPerShareDeclared | $ 0.125 us-gaap_CommonStockDividendsPerShareDeclared | $ 0.420 us-gaap_CommonStockDividendsPerShareDeclared |  |
Estimated total cash dividend | $ 6,927 us-gaap_DividendsCommonStockCash | $ 6,116 us-gaap_DividendsCommonStockCash | $ 20,550 us-gaap_DividendsCommonStockCash |  |
Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Cash dividends declared per common share (in dollars per share) |  |  |  |  | $ 0.16 us-gaap_CommonStockDividendsPerShareDeclared / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Estimated total cash dividend |  |  |  |  | $ 7,900 us-gaap_DividendsCommonStockCash / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Dividends payable, date to be paid |  |  |  |  | Jul. 23, 2015
Dividends payable, date of record |  |  |  |  | Jul. 02, 2015
Per share increase on dividend declared (in dollars per share) |  |  |  |  | $ 0.02 ssd_PerShareIncreaseondividenddeclared / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Percentage increase on dividend declared |  |  |  |  | 14.30%ssd_Percentageincreaseondividenddeclared / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Restricted stock units awarded to directors |  |  |  | 1,950 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Estimated value per share of restricted stock units awarded (in dollars per share) |  |  |  | $ 36.33 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Restriction percentage on RSUs |  |  |  | 100.00%ssd_RestrictionPercentageonRSUs / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |

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- Definition Percentage increase on the amount of the dividend declared + References No definition available. + Details
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- Definition Per Share Increase on dividend declared + References No definition available. + Details
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- Definition Restriction Percentage on RSUs + References No definition available. + Details
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Details
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