Acquisitions and Goodwill - Details Textual (Details) (USD $)
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1 Months Ended | 12 Months Ended | ||
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Aug. 31, 2013
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Dec. 31, 2014
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Mar. 31, 2015
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Aug. 01, 2014
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Goodwill [Line Items] | ||||
Additions | $ 32,962,000 | $ 32,962,000 | ||
Nashville Acquisition [Member] | ||||
Goodwill [Line Items] | ||||
Cash Paid for Acquisitions | 18,600,000 | |||
Additions | 10,200,000 | |||
Remaining basis of other assets and liabilities after goodwill, almost entirely comprised of acquired inventory | 8,400,000 | |||
Legendary Communities Acquisition [Member] | ||||
Goodwill [Line Items] | ||||
Cash Paid for Acquisitions | 130,700,000 | |||
Additions | 22,700,000 | |||
Remaining basis of other assets and liabilities after goodwill, almost entirely comprised of acquired inventory | $ 108,000,000 |