Fair Values of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Assets, Liabilities and Temporary Equity Measured at Fair Value on a Recurring Basis

The following tables summarize the Company’s assets, liabilities and temporary equity measured at fair value on a recurring basis as of December 31, 2017 and 2016: 

December 31, 2017	Total		Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Assets
Available for sale securities	$	38,895	$	38,895	$	—	$	—
Interest rate cap agreements	$	1,032	$	—	$	1,032	$	—
Liabilities
Contingent earn-out obligations	$	6,388	$	—	$	—	$	6,388
Temporary equity
Noncontrolling interests subject to put provisions	$	1,011,360	$	—	$	—	$	1,011,360
December 31, 2016
Assets
Available for sale securities	$	31,197	$	31,197	$	—	$	—
Interest rate cap agreements	$	9,929	$	—	$	9,929	$	—
Liabilities
Contingent earn-out obligations	$	2,950	$	—	$	—	$	2,950
Temporary equity
Noncontrolling interests subject to put provisions	$	973,258	$	—	$	—	$	973,258