Investments (Tables)

3 Months Ended

Mar. 31, 2016

Investments, All Other Investments [Abstract]

Schedule of Cost and Equity Method Investments

The following table summarizes the Company's investments (dollars in thousands):

	March 31, 2016		Percent Ownership of Voting Stock			December 31, 2015		Percent Ownership of Voting Stock
Available-for-sale securities:
Convertible debt securities	$	10,173				$	10,116
Redeemable preferred shares	22,699		17%	to	25%	22,834		17%	to	25%
Total available-for-sale securities	32,872					32,950
Cost method investments	15,056		2%	to	10%	14,561		2%	to	10%
Fair value option investments	129,625		43%	to	45%	130,725		43%	to	45%
Total investments	$	177,553				$	178,236

Schedule of Available-for-sale Securities Reconciliation

The following table summarizes the amortized cost, gross unrealized gain, gross unrealized loss and fair value of the Company's available-for-sale securities as of March 31, 2016 and December 31, 2015, respectively (in thousands):

	March 31, 2016									December 31, 2015
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss (1)			Fair Value		Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss (1)			Fair Value
Available-for-sale securities:
Convertible debt securities	$	9,272	$	901	$	—		$	10,173	$	9,234	$	882	$	—		$	10,116
Redeemable preferred shares	22,973		—		(274		)	22,699		22,973		—		(139		)	22,834
Total available-for-sale securities	$	32,245	$	901	$	(274	)	$	32,872	$	32,207	$	882	$	(139	)	$	32,950