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Acquisitions of Non-Controlling Interests	12 Months Ended
Acquisitions of Non-Controlling Interests	Dec. 31, 2015
Acquisitions of Non-Controlling Interests [Abstract]
Acquisitions of Non-Controlling Interests	4. Acquisitions of Non-Controlling Interests In 2015, the Company purchased additional interests in eight partnerships. The interests in the partnerships purchased ranged from 5% to 35%. The aggregate purchase price paid was $8.7 million of which $5.6 million was paid in cash and the Company entered into several notes payable of $3.1 million. The notes are payable in two installments plus accrued interest (interest accrues at 3.25%). The first principal installments in an aggregate of $1.2 million are due on December 31, 2018 and the second principal installments in an aggregate of $1.9 million are due on January 31, 2019. The purchase prices included an aggregate of $260,000 of undistributed earnings. The remaining $8.4 million, less future tax benefits of $3.3 million, was recognized as an adjustment to additional paid-in capital.