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Acquisitions - Arminak & Associates Narrative (Details) - Business Acquisition, Arminak & Associates [Member] - USD ($) $ in Millions | 3 Months Ended |
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Mar. 31, 2014 | Feb. 23, 2012
Redeemable Noncontrolling Interest by Exercise Period [Line Items] |  |
Business Acquisition, Percentage of Voting Interests Acquired |  | 70.00%
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net |  | $ 67.7
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 30.00% |
Payments to Acquire Additional Interest in Subsidiaries | $ 51.0 |
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, High | $ 7.0 |

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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
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- Definition Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition The cash outflow associated with the purchase of noncontrolling interest during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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