Long-term incentive compensation and shareholders' equity (Tables)

12 Months Ended

Dec. 31, 2016

Summary of Status of Awards Under Stock-Based Compensation Plans and Agreements

A combined summary of the status of the Company’s stock-settled awards under the 2011 Plan, including base shares for stock-settled stock appreciation rights and stock-settled stock unit awards is as follows:

	Year ended December 31, 2016
	Stock appreciation rights							Stock units
				Weighted		Weighted					Weighted
				average		average					average
				exercise		remaining					remaining
	Awards			price		contractual life		Awards			contractual life
Outstanding at beginning of year		8,533,561		$	59.05				765,060
Granted		1,280,034			73.40				328,457
Exercised		(2,031,593	)		45.35				(280,197	)
Cancelled		(444,736	)		66.50				(27,767	)
Outstanding at end of period		7,337,266		$	64.90		2.2		785,553			1.9
Exercisable at end of period		3,026,721		$	56.83		1.1		—			—
Weighted-average fair value of grants in 2016	$	13.74						$	70.99
Weighted-average fair value of grants in 2015	$	17.97						$	80.25
Weighted-average fair value of grants in 2014	$	16.41						$	72.24

Summary of Range of Exercise Prices

	Awards		Weighted average		Awards		Weighted average
Range of SSAR base prices	outstanding		exercise price		exercisable		exercise price
$30.01–$40.00		16,000		39.89		16,000		39.89
$40.01–$50.00		267,621		44.44		267,621		44.44
$50.01–$60.00		3,489,398		57.53		2,420,035		56.84
$60.01–$70.00		1,306,049		67.46		232,816		65.04
$70.01–$80.00		1,581,487		74.76		50,806		70.44
$80.01–$90.00		676,711		83.60		39,443		81.51
Total		7,337,266	$	64.90		3,026,721	$	56.83

Summary of Weighted Average Valuation Inputs

A summary of the weighted average valuation inputs described above used for estimating the grant-date fair value of stock-settled stock appreciation rights awards granted in the periods indicated is as follows:

	Year ended December 31,
	2016			2015			2014
Expected term	4.2 years			4.1 years			4.2 years
Expected volatility		21.0	%		24.6	%		25.8	%
Expected dividend yield		0.0	%		0.0	%		0.0	%
Risk-free interest rate		1.0	%		1.5	%		1.5	%

Effects of Changes in DaVita Inc's Ownership Interest on Company's Equity

The effects of changes in DaVita Inc.’s ownership interest on the Company’s equity are as follows:

	Year ended December 31,
	2016			2015			2014
Net income attributable to DaVita Inc.	$	879,874		$	269,732		$	723,114
Increase in paid-in capital for sales of noncontrolling interest		—			—			355
Decrease in paid-in capital for the purchase of noncontrolling interests		(13,105	)		(55,826	)		(5,357	)
Net transfer to noncontrolling interests		(13,105	)		(55,826	)		(5,002	)
Change from net income attributable to DaVita Inc. and transfers to noncontrolling interests	$	866,769		$	213,906		$	718,112