Derivative Instruments and Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2020

Derivative Instruments and Hedging Activities Disclosures [Line Items]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following tables present information about our financial assets and liabilities measured at fair value on a recurring basis and indicate the fair value hierarchy of the valuation inputs we utilized to determine such fair value as of June 30, 2020 and December 31, 2019 (in thousands):

	Balance as of June 30, 2020		Fair Value Measurements as of June 30, 2020
			Level 1		Level 2		Level 3
Assets:
Cash surrender value of life insurance	$	59,599	$	—	$	59,599	$	—
Cross currency swap agreements	2,717		—		2,717		—
Total Assets	$	62,316	$	—	$	62,316	$	—
Liabilities:
Contingent consideration liabilities	$	11,914	$	—	$	—	$	11,914
Interest rate swaps	3,005		—		3,005		—
Deferred compensation liabilities	63,863		—		63,863		—
Cross currency swap agreements	24,559		—		24,559		—
Total Liabilities	$	103,341	$	—	$	91,427	$	11,914

	Balance as of December 31, 2019		Fair Value Measurements as of December 31, 2019
			Level 1		Level 2		Level 3
Assets:
Cash surrender value of life insurance	$	60,637	$	—	$	60,637	$	—
Interest rate swaps	3,262		—		3,262		—
Cross currency swap agreements	3,156		—		3,156		—
Total Assets	$	67,055	$	—	$	67,055	$	—
Liabilities:
Contingent consideration liabilities	$	11,539	$	—	$	—	$	11,539
Deferred compensation liabilities	63,981		—		63,981		—
Cross currency swap agreements	24,319		—		24,319		—
Total Liabilities	$	99,839	$	—	$	88,300	$	11,539

Schedule of Derivative Instruments [Table Text Block]

The following tables summarize the notional amounts and fair values of our designated cash flow hedges as of June 30, 2020 and December 31, 2019 (in thousands):

	Notional Amount		Fair Value at June 30, 2020 (USD)
	June 30, 2020		Other Current Assets		Other Noncurrent Assets		Other Accrued Expenses		Other Noncurrent Liabilities
Interest rate swap agreements
USD denominated	$	480,000	$	—	$	—	$	3,005	$	—
Cross currency swap agreements
USD/euro	$	458,689	2,717		—		24,559		—
Total cash flow hedges			$	2,717	$	—	$	27,564	$	—

	Notional Amount		Fair Value at December 31, 2019 (USD)
	December 31, 2019		Other Current Assets		Other Noncurrent Assets		Other Accrued Expenses		Other Noncurrent Liabilities
Interest rate swap agreements
USD denominated	$	480,000	$	—	$	3,262	$	—	$	—
Cross currency swap agreements
USD/euro	$	466,621	2,975		181		970		23,349
Total cash flow hedges			$	2,975	$	3,443	$	970	$	23,349